Imaging particles in full 3D parallax mode with two-wavelength off-axis Fresnel holography

Pascal Picart; Soumaya Kara Mohammed; Larbi Bouamama; Derradji Bahloul

doi:10.1117/12.2271753

26 June 2017 Imaging particles in full 3D parallax mode with two-wavelength off-axis Fresnel holography

Pascal Picart, Soumaya Kara Mohammed, Larbi Bouamama, Derradji Bahloul

Proceedings Volume 10335, Digital Optical Technologies 2017; 103351J (2017) https://doi.org/10.1117/12.2271753
Event: SPIE Digital Optical Technologies, 2017, Munich, Germany

Abstract

This paper proposes an approach based on two orthogonal views and two wavelengths for recording off-axis two-color holograms. The approach permits to discriminate particles aligned along the sight-view axis. The digital processing to get images from the particles is based on convolution so as to obtain images with no wavelength dependence. In order to get the images of particles in the 3D volume, a calibration process is proposed and is based on the modulation theorem to perfectly superimpose the two views in a common XYZ axis. The experimental set-up is applied to two-color hologram recording of moving non-calibrated opaque particles with average diameter at about 150μm. After processing the two-color holograms with image reconstruction and view calibration, the location of particles in the 3D volume can be obtained. Particularly, ambiguity about close particles, generating hidden particles in a single-view scheme, can be removed to determine the exact number of particles in the region of interest.

Citation Download Citation

Pascal Picart, Soumaya Kara Mohammed, Larbi Bouamama, and Derradji Bahloul "Imaging particles in full 3D parallax mode with two-wavelength off-axis Fresnel holography", Proc. SPIE 10335, Digital Optical Technologies 2017, 103351J (26 June 2017); https://doi.org/10.1117/12.2271753

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Particles

Holograms

Sensors

Calibration

Digital holography

3D image processing

Fourier transforms

Show All Keywords

Keywords/Phrases

Search In:

Publication Years