Dr. Giancarlo Pedrini Profile

Dr. Giancarlo Pedrini

Coherent Measurement Group Leader at Institut für Technische Optik

SPIE Involvement:

Conference Program Committee | Author

Publications (87)

Proceedings Article | 15 August 2023 Presentation + Paper

Coherence-gated digital holographic imaging through extended scattering media for autonomous driving vehicles

Alexander Gröger, Giancarlo Pedrini, Daniel Claus, Stephan Reichelt

Proceedings Volume 12618, 126181D (2023) https://doi.org/10.1117/12.2675717

KEYWORDS: Holography, Photons, Digital holography, Stray light, Signal to noise ratio, Optical coherence, Visibility through fog, Visibility

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Proceedings Article | 17 March 2023 Poster

World's smallest single-shot two-wavelength holographic endoscope for 3D surface measurement

Alexander Gröger, Giancarlo Pedrini, Daniel Claus, Felix Fischer, Stephan Reichelt, Simon Thiele, Nils Fahrbach

Proceedings Volume PC12356, PC123560P (2023) https://doi.org/10.1117/12.2662817

KEYWORDS: 3D metrology, Holography, Endoscopes, Wavefronts, Wavefront distortions, Micro optics, Holograms, Digital holography, Cameras

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Proceedings Article | 20 May 2022 Presentation + Paper

Lensless phase imaging microscopy by multiple intensity diffraction pattern

G. Pedrini, A. Schiebelbein, E. Achimova, V. Abashkin

Proceedings Volume 12136, 1213605 (2022) https://doi.org/10.1117/12.2620778

KEYWORDS: Diffraction, Phase imaging, Microscopy, Digital holography, Wave propagation, Phase retrieval, Spatial resolution

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Proceedings Article | 20 June 2021 Presentation + Paper

Ensemble cross-correlation for image retrieval from the intensity signal recorded by a single pixel

Stephan Ludwig, Giancarlo Pedrini, Xiang Peng, Wolfgang Osten

Proceedings Volume 11782, 1178214 (2021) https://doi.org/10.1117/12.2592727

KEYWORDS: Point spread functions, Image retrieval, Scattering, Scanning probe microscopy, Microscopy, Light scattering, Scattering media, Optical storage, Mirrors, Microscopes

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Proceedings Article | 20 June 2021 Presentation + Paper

Oblique illumination in self-referencing digital holographic microscopy and its applications

Yasaman Ganjkhani, Alejandro Calabuig, Giancarlo Pedrini, Ali-Reza Moradi

Proceedings Volume 11786, 117860K (2021) https://doi.org/10.1117/12.2592613

KEYWORDS: Digital holography, Microscopy, Holography, Mirrors, Holograms, Glasses, Cameras, Spatial resolution, Spatial filters, Resolution enhancement technologies

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Proceedings Article | 18 November 2019 Paper

Two-wavelengths digital holography for erosion measurements inside the ITER Tokamak

G. Pedrini, A. Calabuig, G. Jagannathan, M. Kempenaars, G, Vayakis, W. Osten

Proceedings Volume 11189, 111890I (2019) https://doi.org/10.1117/12.2550453

KEYWORDS: Tungsten, Distance measurement, Aluminum, Tunable lasers, Profilometers, Plasma, Sensors, Plasma physics

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Proceedings Article | 18 November 2019 Paper

How can a plenoptic camera be used as a metrology tool?

Zewei Cai, Xiaoli Liu, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11189, 1118902 (2019) https://doi.org/10.1117/12.2540184

KEYWORDS: Cameras, Metrology, 3D image processing, Calibration, Optical testing, Image sensors, Signal detection, Microlens array, Sensors, Image processing

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Proceedings Article | 3 September 2019 Paper

Using wrapped phases for light-field three-dimensional imaging

Jiawei Chen, Zewei Cai, Xiaoli Liu, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11102, 111021C (2019) https://doi.org/10.1117/12.2527850

KEYWORDS: Microlens, 3D image processing, Phase shifts, Cameras, Imaging systems, Calibration, 3D metrology, Modulation, 3D modeling, Computer programming

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Proceedings Article | 22 July 2019 Paper

Wide field of view self-referencing quantitative phase contrast microscopy based on Lloyd’s mirror interferometer

Mugdha Joglekar, Vismay Trivedi, Swapnil Mahajan, Vani Chhnaiwal, Rainer Leitgeb, Giancarlo Pedrini, Bahram Javidi, Arun Anand

Proceedings Volume 11076, 110760S (2019) https://doi.org/10.1117/12.2526568

KEYWORDS: Holograms, Microscopy, Digital holography, Microscopes, Phase contrast, Interferometers, Holography, Blood, Diffraction

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Proceedings Article | 21 June 2019 Paper

Light field three-dimensional measurement

Zewei Cai, Xiaoli Liu, Meihua Liao, Wenqi He, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11056, 1105628 (2019) https://doi.org/10.1117/12.2526889

KEYWORDS: Calibration, Cameras, 3D metrology, 3D image reconstruction, Imaging systems

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SPIE Journal Paper | 2 November 2018

Soft tissue elastography via shearing interferometry

Dominic Buchta, Hüseyin Serbes, Daniel Claus, Giancarlo Pedrini, Wolfgang Osten

JMI, Vol. 5, Issue 04, 046001, (November 2018) https://doi.org/10.1117/12.10.1117/1.JMI.5.4.046001

KEYWORDS: Optical spheres, Tissues, Surgery, Interferometry, Elastography, Shearography, Signal to noise ratio, Tumors, Speckle, Silicon

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Proceedings Article | 24 May 2018 Presentation + Paper

Ptychography: quantitative phase imaging with incoherent imaging properties

D. Claus, G. Pedrini

Proceedings Volume 10677, 106771E (2018) https://doi.org/10.1117/12.2313110

KEYWORDS: Light sources

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Proceedings Article | 24 May 2018 Presentation + Paper

Digital holography for erosion monitoring inside the ITER Tokamak

G. Pedrini, I. Alekseenko, G. Jagannathan, M. Kempenaars, G. Vayakis, W. Osten

Proceedings Volume 10677, 1067722 (2018) https://doi.org/10.1117/12.2307333

KEYWORDS: Digital holography, Distance measurement, Sensors, Interferometry, Fourier transforms, Tunable lasers

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Proceedings Article | 24 May 2018 Presentation + Paper

Development of a realistic wave propagation-based chromatic confocal microscopy model

D. Claus, G. Pedrini, T. Boettcher, M. Taphanel, W. Osten, R. Hibst

Proceedings Volume 10677, 106770X (2018) https://doi.org/10.1117/12.2314914

KEYWORDS: Colorimetry

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Proceedings Article | 24 May 2018 Presentation + Paper

Scatter-plate microscope: improved image acquisition

Stephan Ludwig, Alok Singh, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 10677, 1067717 (2018) https://doi.org/10.1117/12.2306252

KEYWORDS: Deconvolution, Speckle pattern, Point spread functions, Filtering (signal processing), Microscopes, Image acquisition, Microscopy, Image quality, Image filtering, Scattering, Scattering media

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Proceedings Article | 23 February 2018 Presentation + Paper

Shaping the light for the investigation of depth-extended scattering media

W. Osten, K. Frenner, G. Pedrini, A. K. Singh, J. Schindler, M. Takeda

Proceedings Volume 10503, 1050318 (2018) https://doi.org/10.1117/12.2296582

KEYWORDS: Microscopes, Scattering, Point spread functions, Scattering media, Diffusers, Imaging systems, Speckle pattern, Objectives, Microscopy, Light scattering

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SPIE Journal Paper | 7 December 2017

Speckle-correlation imaging through scattering media with hybrid bispectrum-iteration algorithm

Meiling Zhou, Alok Kumar Singh, Giancarlo Pedrini, Wolfgang Osten, Junwei Min, Baoli Yao

OE, Vol. 56, Issue 12, 123102, (December 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.12.123102

KEYWORDS: Reconstruction algorithms, Speckle imaging, Image quality, Scattering media, Scattering, Speckle pattern, Speckle, Cameras, Laser scattering, Fourier transforms

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Proceedings Article | 11 July 2017 Paper

Lock-in-shearography for the detection of transport-induced damages on artwork

D. Buchta, C. Heinemann, G. Pedrini, C. Krekel, W. Osten

Proceedings Volume 10331, 103310G (2017) https://doi.org/10.1117/12.2270278

KEYWORDS: Phase shift keying, Defect detection, Mirrors, Speckle, Fourier transforms, Lead, Shearography, Cultural heritage, Thermography, Modulation, Signal detection, Interferometry, Nondestructive evaluation

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Proceedings Article | 26 June 2017 Paper

Spectrally resolved digital holography using a white light LED

D. Claus, G. Pedrini, D. Buchta, W. Osten

Proceedings Volume 10335, 103351H (2017) https://doi.org/10.1117/12.2270166

KEYWORDS: Digital holography, Light emitting diodes, Holograms, Holography, Light, Temporal coherence, Coherence (optics), Optical signal processing, Hyperspectral imaging, Prisms, 3D image reconstruction, Speckle, Signal to noise ratio, Beam splitters, Mirrors

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SPIE Journal Paper | 1 June 2017 Open Access

Large-field-of-view optical elastography using digital image correlation for biological soft tissue investigation (erratum)

Daniel Claus, Marijo Mlikota, Jonathan Geibel, Thomas Reichenbach, Giancarlo Pedrini, Johannes Mischinger, Siegfried Schmauder, Wolfgang Osten

JMI, Vol. 4, Issue 02, 029801, (June 2017) https://doi.org/10.1117/12.10.1117/1.JMI.4.2.029801

KEYWORDS: Tissue optics, Biomedical optics, Soft tissue optics, Elastography, Digital image correlation, Medical imaging, 3D modeling

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SPIE Journal Paper | 8 August 2016

Nanoscale measurement of in-plane and out-of-plane displacements of microscopic object by sensor fusion

Alok Kumar Singh, Giancarlo Pedrini, Xiang Peng, Wolfgang Osten

OE, Vol. 55, Issue 12, 121722, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.12.121722

KEYWORDS: Digital holography, Digital image correlation, Sensors, Spiral phase plates, Wavefronts, Holograms, 3D metrology, Optical engineering, 3D image processing, Digital imaging

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Proceedings Article | 24 August 2015 Paper

A flexible method for residual stress measurement of spray coated layers by laser made hole drilling and SLM based beam steering

W. Osten, G. Pedrini, P. Weidmann, R. Gadow

Proceedings Volume 9660, 96600H (2015) https://doi.org/10.1117/12.2196869

KEYWORDS: Laser drilling, Spatial light modulators, 3D metrology, Pulsed laser operation, Digital holography, Beam splitters, Holograms, Stress analysis, Data modeling, 3D modeling

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Proceedings Article | 2 July 2015 Paper

Combination of topology and structural information for damages and deterioration analysis of artworks

D. Buchta, N. Hein, G. Pedrini, C. Krekel, W. Osten

Proceedings Volume 9527, 95270Q (2015) https://doi.org/10.1117/12.2184690

KEYWORDS: Shearography, Humidity, Cameras, Projection systems, Defect detection, Neodymium, Temperature metrology, Inspection, Data modeling, Ions

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SPIE Journal Paper | 10 April 2015

Phase-sensitive structured illumination to detect nanosized asymmetries in silicon trenches

Ahmad Faridian, Valeriano Ferreras Paz, Karsten Frenner, Giancarlo Pedrini, Arie den Boef, Wolfgang Osten

JM3, Vol. 14, Issue 02, 021104, (April 2015) https://doi.org/10.1117/12.10.1117/1.JMM.14.2.021104

KEYWORDS: Semiconducting wafers, Silicon, Microscopy, Wavefronts, Illumination engineering, Image enhancement, Metrology, Semiconductors, Image resolution, Scatterometry

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Proceedings Article | 13 November 2014 Paper

Phase retrieval for optical metrology

Giancarlo Pedrini, Ahmad Faridian, Alok Kumar Singh, Wolfgang Osten

Proceedings Volume 9276, 927602 (2014) https://doi.org/10.1117/12.2071038

KEYWORDS: Digital holography, Microelectromechanical systems, Holography, Wavefronts, Phase retrieval, Laser drilling, Microscopy, Sensors, Optical metrology, Holograms

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Proceedings Article | 18 August 2014 Paper

Speckle interferometry at 10 micrometers wavelength: a combined thermography and interferometry technique and its application in aeronautical nondestructive testing

Marc Georges, Jean-François Vandenrijt, Cédric Thizy, Igor Alexeenko, Giancarlo Pedrini, Jonathan Rochet, Birgit Vollheim, Iagoba Jorge, Ion López, Wolfgang Osten

Proceedings Volume 9204, 92040F (2014) https://doi.org/10.1117/12.2062816

KEYWORDS: Long wavelength infrared, Cameras, Thermography, Temperature metrology, Nondestructive evaluation, Speckle interferometry, Composites, Microbolometers, Holography, Interferometry

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Proceedings Article | 1 May 2014 Paper

A benchmark system for the evaluation of selected phase retrieval methods

Christian Lingel, Malte Hasler, Tobias Haist, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 9132, 91320R (2014) https://doi.org/10.1117/12.2057472

KEYWORDS: Phase retrieval, Computer simulations, Cameras, Photovoltaics, Optical alignment, Holography, Phase measurement, Interferometry, Digital holography, Image processing

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Proceedings Article | 12 March 2014 Paper

High-contrast 3D microscopic imaging of deep layers in a biological medium

Ahmad Faridian, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8949, 89490H (2014) https://doi.org/10.1117/12.2037310

KEYWORDS: Digital holography, Image processing, Image enhancement, Scattering, Image fusion, Microscopy, Digital image processing, 3D image reconstruction, 3D image processing, Holography

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SPIE Journal Paper | 12 August 2013 Open Access

High-contrast multilayer imaging of biological organisms through dark-field digital refocusing

Ahmad Faridian, Giancarlo Pedrini, Wolfgang Osten

JBO, Vol. 18, Issue 08, 086009, (August 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.8.086009

KEYWORDS: Digital holography, Holograms, Organisms, 3D image reconstruction, Microscopy, Speckle, Holography, 3D image processing, Video, Image processing

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SPIE Journal Paper | 9 July 2013 Open Access

Remote laboratories for optical metrology: from the lab to the cloud

Wolfgang Osten, Marc Wilke, Giancarlo Pedrini

OE, Vol. 52, Issue 10, 101914, (July 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.101914

KEYWORDS: Digital holography, Holography, Clouds, Optical metrology, Metrology, Data storage, Computing systems, Internet, Inspection, Telecommunications

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Proceedings Article | 22 June 2013 Paper

Interferometrical techniques for the investigation of dynamic events

Giancarlo Pedrini, Igor Alexeenko, Wolfgang Osten

Proceedings Volume 8769, 876915 (2013) https://doi.org/10.1117/12.2019053

KEYWORDS: Digital holography, Holograms, Microelectromechanical systems, Charge-coupled devices, Sensors, Shearography, Beam splitters, Interferometry, Wavefronts, Time metrology

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Proceedings Article | 30 May 2013 Paper

Remote photonic metrology in the conservation of cultural heritage

Vivi Tornari, G. Pedrini, W. Osten

Proceedings Volume 8790, 87901H (2013) https://doi.org/10.1117/12.2021338

KEYWORDS: Digital holography, Cultural heritage, Clouds, Metrology, Holography, Data storage, Information technology, Virtual reality, Internet, Laser optics

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Photonic technologies play a leading innovative role of research in the fields of Cultural Heritage (CH) conservation, preservation and digitisation. In particular photonic technologies have introduced a new indispensable era of research in the conservation of cultural artefacts expanding from decorative objects, paintings, sculptures, monuments to archaeological sites and including fields of application as diverse as materials characterisation to restoration practices and from defect topography to 3d artwork reconstruction. Thus the last two decades photonic technologies have emerged as unique answer or most competitive alternative into many long-term standing disputes in conservation and restoration of Cultural Heritage. Despite the impressive advances on the state-of-the-art ranging from custom-made system development to new methods and practises, photonic research and technological developments remain incoherently scattered and fragmented with a significant amount of duplication of work and misuse of resources. In this context, further progress should aim to capitalise on the so far achieved milestones in any of the diverse applications flourished in the field of CH. Embedding of experimental facilities and conclusions seems the only way to secure the progress beyond the existing state of the art and its false use. The solution to this embedment seems possible through the new computing environments. Cloud computing environment and remote laboratory access hold the missing research objective to bring the leading research together and integrate the achievements. The cloud environment would allow experts from museums, galleries, historical sites, art historians, conservators, scientists and technologists, conservation and technical laboratories and SMEs to interact their research, communicate their achievements and share data and resources. The main instrument of this integration is the creation of a common research platform termed here Virtual Laboratory allowing not only remote research, inspection and evaluation, but also providing the results to the members and the public with instant and simultaneous access to necessary information, knowledge and technologies. In this paper it is presented the concept and first results confirming the potential of implementing metrology techniques as remote digital laboratory facilities in artwork structural assessment. The method paves the way of the general objective to introduce remote photonic technologies in the sensitive field of Cultural Heritage.

Proceedings Article | 30 May 2013 Paper

Detection of transport and age induced damages on artwork: an advanced concept

M. Morawitz, N. Hein, I. Alexeenko, M. Wilke, G. Pedrini, C. Krekel, W. Osten

Proceedings Volume 8790, 879004 (2013) https://doi.org/10.1117/12.2020582

KEYWORDS: Humidity, Climatology, Shearography, Climate change, Cultural heritage, Environmental sensing, 3D metrology, Temperature metrology, Electroluminescent displays, Mirrors

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Proceedings Article | 13 May 2013 Paper

Resolution enhancement and autofocusing in digital holographic microscopy by using structured illumination

Peng Gao, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8788, 878809 (2013) https://doi.org/10.1117/12.2020298

KEYWORDS: Digital holography, Resolution enhancement technologies, Holograms, Diffraction, 3D image reconstruction, Spatial light modulators, Microscopy, Spatial resolution, Holography, Telescopes

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Proceedings Article | 3 May 2013 Paper

Digital holography for recording of incoherent-object hologram as complex spatial coherence function

Dinesh Naik, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8776, 87760B (2013) https://doi.org/10.1117/12.2016833

KEYWORDS: Spatial coherence, Interferometers, Holograms, Holography, Phase shifts, Shearing interferometers, Digital holography, Holographic interferometry, Beam splitters, Phase shifting

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SPIE Journal Paper | 11 April 2013

Mobile speckle interferometer in the long-wave infrared for aeronautical nondestructive testing in field conditions

Jean-François Vandenrijt, Cédric Thizy, Igor Alexeenko, Giancarlo Pedrini, Jonathan Rochet, Birgit Vollheim, Iagoba Jorge, Pablo Venegas, Ion López, Wolfgang Osten, Marc Georges

OE, Vol. 52, Issue 10, 101903, (April 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.10.101903

KEYWORDS: Long wavelength infrared, Cameras, Gas lasers, Interferometers, Optical fibers, Speckle, Infrared radiation, Microbolometers, Nondestructive evaluation, Composites

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SPIE Journal Paper | 20 March 2013

Radial shear interferometer with holographic lenses coupled with a spatial Fourier transform method suitable for static and dynamic measurements

Charles Joenathan, Ashley Bernal, Giancarlo Pedrini, Wolfgang Osten

OE, Vol. 52, Issue 03, 035603, (March 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.3.035603

KEYWORDS: Holography, Lenses, Interferometers, Fourier transforms, Holographic interferometry, Wavefronts, Cameras, Collimation, CCD cameras, Sensors

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Proceedings Article | 24 October 2012 Paper

Speckle interferometry at 10 µm with CO2 lasers and microbolometers array

Marc Georges, Jean-François Vandenrijt, Cédric Thizy, Igor Alexeenko, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8412, 84121O (2012) https://doi.org/10.1117/12.2001440

KEYWORDS: Cameras, Long wavelength infrared, Thermography, Holography, Holographic interferometry, Speckle interferometry, Carbon dioxide lasers, Microbolometers, Digital holography, Sensors

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Proceedings Article | 15 October 2012 Paper

Statistics of Fresnelet coefficients in PSI holograms

Marc Wilke, Alok Singh, Ahmad Faridian, Thomas Richter, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8499, 849904 (2012) https://doi.org/10.1117/12.929745

KEYWORDS: Holograms, Wavefronts, Wavelets, Holography, Digital holography, Sensors, Speckle, Statistical analysis, Wave propagation, Microscopy

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Proceedings Article | 11 September 2012 Paper

Remote laboratories for optical metrology: from the lab to the cloud

W. Osten, M. Wilke, G. Pedrini

Proceedings Volume 8413, 84130H (2012) https://doi.org/10.1117/12.981616

KEYWORDS: Digital holography, Holography, Clouds, Metrology, Inspection, Internet, Computing systems, Data storage, Optical metrology, Holograms

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The idea of remote and virtual metrology has been reported already in 2000 with a conceptual illustration by use of comparative digital holography, aimed at the comparison of two nominally identical but physically different objects, e.g., master and sample, in industrial inspection processes. However, the concept of remote and virtual metrology can be extended far beyond this. For example, it does not only allow for the transmission of static holograms over the Internet, but also provides an opportunity to communicate with and eventually control the physical set-up of a remote metrology system. Furthermore, the metrology system can be modeled in the environment of a 3D virtual reality using CAD or similar technology, providing a more intuitive interface to the physical setup within the virtual world. An engineer or scientist who would like to access the remote real world system can log on to the virtual system, moving and manipulating the setup through an avatar and take the desired measurements. The real metrology system responds to the interaction between the avatar and the 3D virtual representation, providing a more intuitive interface to the physical setup within the virtual world. The measurement data are stored and interpreted automatically for appropriate display within the virtual world, providing the necessary feedback to the experimenter. Such a system opens up many novel opportunities in industrial inspection such as the remote master-sample-comparison and the virtual assembling of parts that are fabricated at different places. Moreover, a multitude of new techniques can be envisaged. To them belong modern ways for documenting, efficient methods for metadata storage, the possibility for remote reviewing of experimental results, the adding of real experiments to publications by providing remote access to the metadata and to the experimental setup via Internet, the presentation of complex experiments in classrooms and lecture halls, the sharing of expensive and complex infrastructure within international collaborations, the implementation of new ways for the remote test of new devices, for their maintenance and service, and many more. The paper describes the idea of remote laboratories and illustrates the potential of the approach on selected examples with special attention to optical metrology.

SPIE Journal Paper | 5 July 2012

Novel and simple lateral shear interferometer with holographic lens and spatial Fourier transform

Charles Joenathan, Giancarlo Pedrini, Igor Alekseenko, Wolfgang Osten

OE, Vol. 51, Issue 7, 075601, (July 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.7.075601

KEYWORDS: Holography, Interferometers, Collimation, Wavefronts, Fourier transforms, Holographic interferometry, Cameras, Spatial frequencies, Linear filtering, Sensors

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Proceedings Article | 15 May 2012 Paper

3D microscopic imaging at 193nm with single beam Fresnel intensity sampling and iterative phase retrieval

Arun Anand, Ahmad Faridian, Vani Chhaniwal, Giancarlo Pedrini, Wolfgang Osten, Bahram Javidi

Proceedings Volume 8384, 83840A (2012) https://doi.org/10.1117/12.919988

KEYWORDS: Wavefronts, Diffraction, Wave propagation, 3D image processing, Stereoscopy, Phase retrieval, Deep ultraviolet, Objectives, Wavefront reconstruction, Image processing

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Proceedings Article | 15 May 2012 Paper

3D shape measurement using deterministic phase retrieval and a partially developed speckle field

Percival Almoro, Laura Waller, Mostafa Agour, Claas Falldorf, Giancarlo Pedrini, Wolfgang Osten, Steen Hanson

Proceedings Volume 8384, 83840Q (2012) https://doi.org/10.1117/12.919223

KEYWORDS: Speckle, Phase retrieval, Wavefronts, Diffusers, Spatial light modulators, Speckle pattern, 3D metrology, Diffraction, Wave propagation, Cameras

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Proceedings Article | 5 May 2012 Paper

Multilevel optical sectioning based on digital holography with a femtosecond frequency comb laser

Klaus Körner, Giancarlo Pedrini, Igor Alexeenko, Wolfram Lyda, Tilo Steinmetz, Ronald Holzwarth, Wolfgang Osten

Proceedings Volume 8430, 843004 (2012) https://doi.org/10.1117/12.923563

KEYWORDS: Digital holography, Holograms, Frequency combs, Mirrors, Holography, Sensors, Femtosecond phenomena, Temporal coherence, Femtosecond frequency combs, Spherical lenses

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SPIE Journal Paper | 1 October 2011

Measurement of nano/micro out-of-plane and in-plane displacements of micromechanical components by using digital holography and speckle interferometry

Giancarlo Pedrini, Igor Alekseenko, Wolfgang Osten, Joao Gaspar, Marek Schmidt, Oliver Paul

OE, Vol. 50, Issue 10, 101504, (October 2011) https://doi.org/10.1117/12.10.1117/1.3572186

KEYWORDS: Digital holography, Microelectromechanical systems, Calibration, Standards development, Silicon, Microsystems, Sensors, Optical engineering, Wavefronts, Speckle interferometry

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Proceedings Article | 2 June 2011 Paper

Single beam quantitative phase contrast 3D microscopy of cells

Vani Chhaniwal, Arun Anand, Ahmad Faridian, Giancarlo Pedrini, Wolfgang Osten, Bahram Javidi

Proceedings Volume 8092, 80920D (2011) https://doi.org/10.1117/12.894998

KEYWORDS: Wavefronts, Phase contrast, Microscopy, Wave propagation, Diffusers, Speckle, Phase retrieval, Diffraction, Image processing, Digital holography

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Proceedings Article | 27 May 2011 Paper

Digital holographic microscopy for dynamic imaging of hydrogels

Caojin Yuan, Giancarlo Pedrini, Guodong Fu, Jun Ma, Wolfgang Osten

Proceedings Volume 8082, 80822F (2011) https://doi.org/10.1117/12.889494

KEYWORDS: Digital holography, Holograms, Holography, Microscopy, Fourier transforms, Wavefronts, Microscopes, Imaging systems, Charge-coupled devices, Liquids

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Proceedings Article | 27 May 2011 Paper

Remote laboratory for digital holographic metrology

Marc Wilke, Igor Alekseenko, Guohai Situ, Konica Sarker, Margarita Riedel, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 8082, 80820D (2011) https://doi.org/10.1117/12.892073

KEYWORDS: Digital holography, Metrology, Holography, Holograms, Data storage, LabVIEW, Inspection, Internet, Control systems, 3D metrology

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Proceedings Article | 13 May 2010 Paper

Deep-ultraviolet digital holographic microscopy for nano-inspection

Ahmad Faridian, David Hopp, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 7718, 771803 (2010) https://doi.org/10.1117/12.854885

KEYWORDS: Digital holography, Objectives, Holography, Wavefronts, 3D image reconstruction, Holograms, Deep ultraviolet, Microscopy, Charge-coupled devices, Aspheric lenses

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Proceedings Article | 31 December 2009 Paper

Resolution enhanced technologies in digital holography

G. Pedrini, D. Hopp, U. Gopinathan, W. Osten

Proceedings Volume 7388, 73880K (2009) https://doi.org/10.1117/12.849634

KEYWORDS: Digital holography, Holograms, Wavefronts, Sensors, Charge-coupled devices, Microscopes, Holography, Microsystems, Ultraviolet radiation, Deep ultraviolet

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Proceedings Article | 19 November 2009 Paper

Collision in double-phase encryption based on fractional Fourier transform

Guohai Situ, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 7512, 751205 (2009) https://doi.org/10.1117/12.837579

KEYWORDS: Digital watermarking, Fractional fourier transform, Computer programming, Legal, Computer security, Information security, Computer simulations, Image encryption, Fourier transforms, Image analysis

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Proceedings Article | 17 June 2009 Paper

Shape measurement of diffuse and transparent objects by two wavelength contouring using phase retrieval

Arun Anand, Vani Chhaniwal, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 7390, 73900D (2009) https://doi.org/10.1117/12.827466

KEYWORDS: Wavefronts, Speckle, Wave propagation, Phase retrieval, Digital holography, Holography, Diffraction, Refractive index, Diffusers, Reconstruction algorithms

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Proceedings Article | 17 June 2009 Paper

Digital holographic tomography of phase objects

Arun Anand, Vani Chhaniwal, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 7389, 73890L (2009) https://doi.org/10.1117/12.827666

KEYWORDS: Refractive index, Holograms, Digital holography, Wavefronts, Diffraction, Holography, Tomography, Diffusers, Charge-coupled devices, Sensors

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Proceedings Article | 25 April 2008 Paper

Extended dynamic range imaging in shearography

Roger Groves, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 7000, 700010 (2008) https://doi.org/10.1117/12.781949

KEYWORDS: Cameras, Shearography, Camera shutters, Image processing, Range imaging, Reflectivity, Sensors, Image fusion, Speckle interferometry, Gold

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Proceedings Article | 25 April 2008 Paper

Wrap-free phase retrieval using a series of intensity measurements produced by tuning the illumination wavelength

Peng Bao, Fucai Zhang, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6995, 699510 (2008) https://doi.org/10.1117/12.782477

KEYWORDS: Wavefronts, Phase retrieval, Modulators, Diffraction, Cameras, Wave propagation, Speckle, Modulation, Phase measurement, Phase contrast

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Proceedings Article | 22 February 2008 Paper

Propagation vector analysis of digital holography and its application for three-dimensional angle measurement

Lingfeng Yu, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6912, 69120B (2008) https://doi.org/10.1117/12.764318

KEYWORDS: 3D metrology, Wave propagation, Digital holography, Calibration, CCD cameras, Autocollimators, Mirrors, Holograms, Spatial frequencies, Holography

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Proceedings Article | 18 June 2007 Paper

Phase retrieval using a random amplitude mask for wavefront sensing

Arun Anand, Giancarlo Pedrini, Wolfgang Osten, Percival Almoro

Proceedings Volume 6617, 66170J (2007) https://doi.org/10.1117/12.725874

KEYWORDS: Wavefronts, Wavefront sensors, Phase retrieval, Sensors, Speckle, Wave propagation, Reconstruction algorithms, CCD cameras, Holography, Refractive index

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Proceedings Article | 18 June 2007 Paper

Fresnel wavefront propagation model for shearography shape measurement

Arun Anand, Roger Groves, Xavier Schwab, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6617, 66170Q (2007) https://doi.org/10.1117/12.725985

KEYWORDS: Wavefronts, Shearography, Sensors, Wave propagation, Optical components, Light wave propagation, Shearing interferometers, Mathematical modeling, Interferometers, Speckle

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Proceedings Article | 18 June 2007 Paper

Phase retrieval based on wavefront modulation

Fucai Zhang, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6616, 661614 (2007) https://doi.org/10.1117/12.726381

KEYWORDS: Wavefronts, Diffraction, Phase retrieval, Phase shift keying, Modulation, Charge-coupled devices, Sensors, Wave propagation, Wavefront sensors, Signal to noise ratio

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Proceedings Article | 15 September 2006 Paper

Wave front phase and amplitude reconstruction techniques using multiple intensity patterns

Percival Almoro, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6341, 63411C (2006) https://doi.org/10.1117/12.695363

KEYWORDS: Distance measurement, Wavefronts, Speckle, Wave propagation, Speckle pattern, Cameras, Computer simulations, Image quality, Image enhancement, Charge-coupled devices

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Proceedings Article | 15 September 2006 Paper

Alignment of master and sample in comparative digital holography

Xavier Schwab, Eugen Meister, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6341, 63410Y (2006) https://doi.org/10.1117/12.695339

KEYWORDS: Holograms, Digital holography, Wavefronts, Fringe analysis, Spatial light modulators, LCDs, Holography, Databases, 3D image reconstruction, Error analysis

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Proceedings Article | 21 June 2006 Paper

3D endoscopic pulsed digital holography

T. Saucedo Anaya, F. Mendoza Santoyo, G. Pedrini, W. Osten

Proceedings Volume 6345, 634507 (2006) https://doi.org/10.1117/12.693108

KEYWORDS: Digital holography, Endoscopes, Holograms, Endoscopy, Charge-coupled devices, Beam splitters, Holographic interferometry, Image resolution, Optical fibers, 3D metrology

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Proceedings Article | 21 June 2006 Paper

High speed digital holographic interferometry

G. Pedrini, M. Gusev, W. Osten

Proceedings Volume 6345, 634506 (2006) https://doi.org/10.1117/12.693107

KEYWORDS: Digital holography, Holograms, Sensors, Wavefronts, Holographic interferometry, Charge-coupled devices, Digital recording, Vibrometry, CCD cameras, Cameras

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Proceedings Article | 28 April 2006 Paper

Aberration-free reconstruction algorithm for high numerical aperture digital hologram

Fucai Zhang, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6188, 618814 (2006) https://doi.org/10.1117/12.664856

KEYWORDS: Reconstruction algorithms, Holograms, Convolution, Digital holography, Sensors, Diffraction, Holography, Microscopy, 3D image reconstruction, Image sensors

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Proceedings Article | 28 April 2006 Paper

Image formation in digital holography

Fucai Zhang, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 6188, 618812 (2006) https://doi.org/10.1117/12.664862

KEYWORDS: Digital holography, Holograms, Sensors, Reconstruction algorithms, Image sensors, Diffraction, Convolution, Fourier transforms, Image acquisition, Phase retrieval

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Proceedings Article | 20 January 2006 Paper

Iterative reconstruction of wave front from an in-line hologram sequence

Yan Zhang, De-Xiang Zheng, Jing-Ling Sheng, Cun-Lin Zhang, Giancarlo Pedrini

Proceedings Volume 6027, 602729 (2006) https://doi.org/10.1117/12.668204

KEYWORDS: Holograms, Wavefronts, Digital holography, Charge-coupled devices, 3D image reconstruction, Wave propagation, Reconstruction algorithms, Holography, Photosensitive materials, Phase shifts

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Proceedings Article | 14 February 2005 Paper

Digital holographic interferometry for investigations in biomechanics

Giancarlo Pedrini, I. Alexeenko, P. Zaslansky, Hans Tiziani, Wolfgang Osten

Proceedings Volume 5776, (2005) https://doi.org/10.1117/12.611633

KEYWORDS: Digital holography, Holograms, Holographic interferometry, Bone, Endoscopes, Tissues, Sensors, Wavefronts, Charge-coupled devices, Digital recording

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Proceedings Article | 14 February 2005 Paper

Vibration measurements by pulsed digital holographic endoscopy

Staffan Schedin, Giancarlo Pedrini, Carlos Perez-Lopez, Fernando Mendoza Santoyo

Proceedings Volume 5776, (2005) https://doi.org/10.1117/12.611745

KEYWORDS: Digital holography, Endoscopes, Holograms, CCD cameras, Endoscopy, Camera shutters, Vibrometry, Holography, Nd:YAG lasers, Holographic interferometry

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Proceedings Article | 10 September 2004 Paper

Short-coherence digital holography for the investigation of 3D microscopic samples

Lluis Martinez-Leon, Giancarlo Pedrini, Wolfgang Osten

Proceedings Volume 5457, (2004) https://doi.org/10.1117/12.544107

KEYWORDS: 3D image reconstruction, Holograms, Digital holography, Charge-coupled devices, Holography, Tissues, Sensors, Mirrors, CCD image sensors, Wavefronts

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Proceedings Article | 22 June 2004 Paper

Advances in pulsed holographic interferometry with photorefractive crystals

Marc Georges, Gilles Pauliat, I. Alexeenko, Giancarlo Pedrini, Philippe Lemaire, Gerald Roosen

Proceedings Volume 5503, (2004) https://doi.org/10.1117/12.579533

KEYWORDS: Crystals, Laser crystals, Diffraction, Holography, Polarization, Cameras, Anisotropy, Holograms, Holographic interferometry, Pulsed laser operation

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Proceedings Article | 22 June 2004 Paper

Miniaturized optical system based on digital holography

Giancarlo Pedrini, I. Alexeenko

Proceedings Volume 5503, (2004) https://doi.org/10.1117/12.579570

KEYWORDS: Digital holography, Holograms, Head, Wavefronts, Holographic interferometry, Holography, Charge-coupled devices, CCD cameras, Sensors, Pulsed laser operation

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Proceedings Article | 26 September 2003 Paper

Mode shape separation in stroboscopic and double-pulse hologram vibration analysis

Mikhail Gusev, Igor Alexeenko, G. Pedrini, Hans Tiziani

Proceedings Volume 5134, (2003) https://doi.org/10.1117/12.518157

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Proceedings Article | 26 September 2003 Paper

The applying of stroboscopic holographic interferometry to frequency-bounded vibrational investigations

Igor Alexeenko, Mikhail Gusev, G. Pedrini, Hans Tiziani

Proceedings Volume 5134, (2003) https://doi.org/10.1117/12.518155

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Proceedings Article | 17 June 2003 Paper

Application of stroboscopic and double-pulse holographic interferometry to frequency-bounded vibrational investigation

Mikhail Gusev, Giancarlo Pedrini, Igor Alexeenko, Hans Tiziani, Alexander Malov

Proceedings Volume 5129, (2003) https://doi.org/10.1117/12.501846

KEYWORDS: Holography, Digital holography, Holographic interferometry, Interferometry, Holograms, Pulsed laser operation, Image quality, Nondestructive evaluation, Phase shifts, Modulators

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Proceedings Article | 27 May 2003 Paper

Pulsed endoscopic digital holographic interferometry for investigation of hidden surfaces

Giancarlo Pedrini, I. Alexeenko, Hans Tiziani

Proceedings Volume 4933, (2003) https://doi.org/10.1117/12.516620

KEYWORDS: Endoscopes, Digital holography, Holograms, Endoscopy, Head, Holographic interferometry, Holography, CCD cameras, Fringe analysis, Q switched lasers

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Proceedings Article | 22 May 2002 Paper

Vibration measurements of hidden object surfaces by using holographic endoscopes

Giancarlo Pedrini, I. Alexeenko, Mikhail Gusev, Hans Tiziani

Proceedings Volume 4827, (2002) https://doi.org/10.1117/12.468149

KEYWORDS: Endoscopes, Digital holography, Holograms, Vibrometry, Endoscopy, Tissues, Holography, CCD cameras, Natural surfaces, Fringe analysis

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Proceedings Article | 3 October 2001 Paper

Use of endoscopes in pulsed digital holographic interferometry

Giancarlo Pedrini, Staffan Schedin, I. Alexeenko, Hans Tiziani

Proceedings Volume 4399, (2001) https://doi.org/10.1117/12.445572

KEYWORDS: Endoscopes, Digital holography, Holograms, CCD cameras, Holographic interferometry, Ruby lasers, Fringe analysis, Pulsed laser operation, Endoscopy, Optical fibers

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Proceedings Article | 11 September 2001 Paper

Multipulsed digital holography applied to full 3D measurements of dynamic events

Fernando Mendoza Santoyo, Giancarlo Pedrini, Staffan Schedin, Hans Tiziani

Proceedings Volume 4420, (2001) https://doi.org/10.1117/12.439203

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Proceedings Article | 22 May 2000 Paper

Combination of pulsed digital holography and laser vibrometry for the 3D measurements of vibrating objects

Giancarlo Pedrini, Staffan Schedin, Hans Tiziani

Proceedings Volume 4072, (2000) https://doi.org/10.1117/12.386721

KEYWORDS: 3D metrology, Digital holography, Holograms, Holography, CCD cameras, Ruby lasers, Beam splitters, Vibrometry, Pulsed laser operation, Wavefronts

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SPIE Journal Paper | 1 December 1999

Vibration mode separation of transient phenomena using multi-pulse digital holography

Philipp Froening, Giancarlo Pedrini, Hans Tiziani, Fernando Mendoza Santoyo

OE, Vol. 38, Issue 12, (December 1999) https://doi.org/10.1117/12.10.1117/1.602312

KEYWORDS: Digital holography, Holograms, Metals, Holographic interferometry, Ruby lasers, CCD cameras, Pulsed laser operation, Holography, Cameras, Optical engineering

Proceedings Article | 9 September 1999 Paper

Whole 3D digital holographic measurements of vibrating objects

Giancarlo Pedrini, Fernando Mendoza Santoyo, Staffan Schedin, Philipp Froening, Hans Tiziani

Proceedings Volume 3823, (1999) https://doi.org/10.1117/12.360998

KEYWORDS: Digital holography, Holograms, Ruby lasers, 3D metrology, CCD cameras, Holography, Fabry–Perot interferometers, Ultraviolet radiation, Wavefronts, Digital recording

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Proceedings Article | 29 September 1998 Paper

Pulsed digital holography for vibration analysis

Hans Tiziani, Giancarlo Pedrini, Philipp Froening

Proceedings Volume 3407, (1998) https://doi.org/10.1117/12.323315

KEYWORDS: Holograms, Digital holography, Metals, Ruby lasers, Vibrometry, Pulsed laser operation, Temporal resolution, Digital recording, Holography, CCD image sensors

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Proceedings Article | 1 June 1998 Paper

Measurement of random and transient deformations of a vibrating plate with multipulse digital holography and their decomposition into eigenmodes

Philipp Froening, Giancarlo Pedrini, H. Fessler, Hans Tiziani

Proceedings Volume 3411, (1998) https://doi.org/10.1117/12.307690

KEYWORDS: Holograms, Digital holography, Ruby lasers, CCD cameras, Metals, Holography, Photography, Mirrors, Pulsed laser operation, Digital recording

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Proceedings Article | 1 June 1998 Paper

Mode forms of a rectangular plate: comparison of digital holographic measurements and HPFEM analysis

Philipp Froening, Giancarlo Pedrini, H. Fessler, Hans Tiziani, P. Kulla, W. Reinprecht

Proceedings Volume 3411, (1998) https://doi.org/10.1117/12.307695

KEYWORDS: Digital holography, Holograms, Chemical elements, Finite element methods, Holography, Holographic interferometry, CCD image sensors, Analytical research, Image resolution, Ruby lasers

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Proceedings Article | 20 March 1997 Paper

Digital holographic interferometry for shape and vibration analysis

Hans Tiziani, Giancarlo Pedrini

Proceedings Volume 2921, (1997) https://doi.org/10.1117/12.269829

KEYWORDS: Holograms, Digital holography, Holographic interferometry, Vibrometry, Charge-coupled devices, 3D image reconstruction, Shape analysis, Digital recording, CCD cameras, Wavefronts

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SPIE Journal Paper | 1 April 1996

Surface contouring in a video frame by changing the wavelength of a diode laser

Yunlu Zou, Giancarlo Pedrini, Hans Tiziani

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.600715

KEYWORDS: Semiconductor lasers, Modulation, Holography, CCD cameras, Video, Speckle pattern, Sensors, Charge-coupled devices, Cameras, Holograms

Proceedings Article | 1 September 1991 Paper

Efficiency of liquid-crystal light valves as polarization rotators

Neil Collings, Wei Xue, Giancarlo Pedrini

Proceedings Volume 1505, (1991) https://doi.org/10.1117/12.47004

KEYWORDS: Liquid crystals, Dielectric polarization, Polarization, Light valves, Computing systems, Computer architecture, Calibration, Photoresistors, Dielectric mirrors, Molecules

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Showing 5 of 87 publications

Conference Committee Involvement (18)

Optical Metrology and Inspection for Industrial Applications XII

12 October 2025 | Beijing, China

Holography: Advances and Modern Trends IX

7 April 2025 | Prague, Czech Republic

Optical Metrology and Inspection for Industrial Applications XI

12 October 2024 | Nantong, Jiangsu, China

Unconventional Optical Imaging IV

8 April 2024 | Strasbourg, France

Optical Metrology and Inspection for Industrial Applications X

15 October 2023 | Beijing, China

Holography: Advances and Modern Trends VIII

24 April 2023 | Prague, Czech Republic

Optical Metrology and Inspection for Industrial Applications IX

5 December 2022 | Online Only, China

Unconventional Optical Imaging III

3 April 2022 | Strasbourg, France

Optical Metrology and Inspection for Industrial Applications VIII

11 October 2021 | Nantong, JS, China

Holography: Advances and Modern Trends VII

19 April 2021 | Online Only, Czech Republic

Optical Metrology and Inspection for Industrial Applications VII

12 October 2020 | Online Only, China

Unconventional Optical Imaging II

7 April 2020 | Online Only, France

Optical Metrology and Inspection for Industrial Applications VI

21 October 2019 | Hangzhou, China

Holography: Advances and Modern Trends

1 April 2019 | Prague, Czech Republic

Optical Metrology and Inspection for Industrial Applications V

11 October 2018 | Beijing, China

Unconventional Optical Imaging

22 April 2018 | Strasbourg, France

Optical Metrology and Inspection for Industrial Applications IV

12 October 2016 | Beijing, China

Optical Metrology and Inspection for Industrial Applications III

9 October 2014 | Beijing, China

Showing 5 of 18 Conference Committees

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