Prof. Joohwan Chun Profile

Prof. Joohwan Chun

Professor at KAIST

SPIE Involvement:

Author

Publications (49)

SPIE Journal Paper | 23 October 2015

Improvement of track-to-track fusion for dual-mode homing guidance with target-orientation measurements

Hoonkyung Cho, Joohwan Chun, Sungchan Song, Sangwon Jung

OE, Vol. 54, Issue 10, 103110, (October 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.10.103110

KEYWORDS: Infrared sensors, Radar, Data fusion, Sensors, Filtering (signal processing), Infrared imaging, 3D acquisition, Optical tracking, Image sensors, 3D metrology

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Proceedings Article | 17 October 2013 Paper

End-to-end design consideration of a radar altimeter for terrain-aided navigation

Joohwan Chun, Sanghyouk Choi, Inchan Paek, Dongmin Park, Kyungju Yoo

Proceedings Volume 8891, 889108 (2013) https://doi.org/10.1117/12.2029213

KEYWORDS: Antennas, Radar, Interferometric synthetic aperture radar, Synthetic aperture radar, Filtering (signal processing), Electronic filtering, Device simulation, Signal processing, Data processing, Time metrology

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SPIE Journal Paper | 22 April 2013

Range estimation of passive infrared targets through the atmosphere

Hoonkyung Cho, Joohwan Chun, Doochun Seo, Seokweon Choi

OE, Vol. 52, Issue 04, 046402, (April 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.4.046402

KEYWORDS: Atmospheric modeling, Chromium, Infrared sensors, Infrared radiation, Sensors, Atmospheric propagation, Transmittance, Atmospheric sensing, Monte Carlo methods, Atmospheric optics

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Proceedings Article | 18 May 2012 Paper

Radiometric calibration for MWIR cameras

Hyunjin Yang, Joohwan Chun, Doo Chun Seo, Jiyeon Yang

Proceedings Volume 8355, 83551I (2012) https://doi.org/10.1117/12.920553

KEYWORDS: Earth's atmosphere, Satellites, Atmospheric modeling, Satellite imaging, Cameras, Mid-IR, Visibility, Infrared imaging, Sensors, Image sensors

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Proceedings Article | 18 May 2012 Paper

Radiance and atmosphere propagation-based method for the target range estimation

Hoonkyung Cho, Joohwan Chun

Proceedings Volume 8354, 835413 (2012) https://doi.org/10.1117/12.920882

KEYWORDS: Chromium, Infrared sensors, Transmittance, Statistical analysis, Sensors, Infrared radiation, Atmospheric propagation, Atmospheric modeling, Atmospheric sensing, Monte Carlo methods

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Proceedings Article | 9 May 2012 Paper

Novel nonlinear phase distortion estimation in wideband linear frequency modulated waveform

Heeseong Yang, Joohwan Chun, Sung-Chan Song

Proceedings Volume 8361, 83611I (2012) https://doi.org/10.1117/12.920528

KEYWORDS: Distortion, Modulation, Parallel processing, Radar, Signal processing, Synthetic aperture radar, Radar signal processing, Technetium, Signal generators, Phase shift keying

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Proceedings Article | 7 May 2012 Paper

MTF compensation algorithm based on blind deconvolution for high-resolution remote sensing satellite

Jihye Lee, Joohwan Chun, Donghwan Lee

Proceedings Volume 8399, 83990R (2012) https://doi.org/10.1117/12.920877

KEYWORDS: Deconvolution, Point spread functions, Image processing, Modulation transfer functions, Image restoration, Image quality, Satellite imaging, Satellites, Remote sensing, Signal processing

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Proceedings Article | 30 September 2011 Paper

A new TBD-DP algorithm using multiple IR sensors to locate the target launch point

Hoonkyung Cho, Joohwan Chun

Proceedings Volume 8185, 81850P (2011) https://doi.org/10.1117/12.898055

KEYWORDS: Detection and tracking algorithms, 3D acquisition, 3D metrology, Sensors, Palladium, 3D modeling, Infrared sensors, Infrared imaging, Computer programming, Target detection

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Proceedings Article | 19 January 2009 Paper

Hybrid real-time tracking of non-rigid objects under occlusions

Wonkyum Lee, Joohwan Chun, Byung In Choi, YuKyung Yang, Sungho Kim

Proceedings Volume 7252, 72520F (2009) https://doi.org/10.1117/12.806150

KEYWORDS: Detection and tracking algorithms, Filtering (signal processing), Motion estimation, RGB color model, Optical tracking, Algorithm development, Reliability, Image processing algorithms and systems, Motion models, Statistical analysis

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Proceedings Article | 16 September 2005 Paper

Convolutive source separation and selective null beamforming using a pilot-based channel estimation technique

Jeonghun Hwang, Jonghyun Lee, Joohwan Chun

Proceedings Volume 5910, 591013 (2005) https://doi.org/10.1117/12.616361

KEYWORDS: Acoustics, Transmitters, Phased arrays, Signal processing, Independent component analysis, Signal detection, Computer simulations, Fourier transforms, Defense technologies, Wireless communications

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Proceedings Article | 16 September 2005 Paper

The sub-optimal receiver structure for the VSB DTV system with an array antenna

Jaehyun Park, Joohwan Chun, Ju Yeun Kim, JongSoo Lim

Proceedings Volume 5910, 591015 (2005) https://doi.org/10.1117/12.616257

KEYWORDS: Vestigial sideband modulation, Antennas, Receivers, Signal to noise ratio, Monte Carlo methods, Computing systems, Telecommunications, Computer simulations, Amplifiers, Modulation

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Proceedings Article | 15 September 2005 Paper

A flexible implementation for Doppler radar to verify various base-band array signal processing algorithms

Eunjung Yang, Jonghyun Lee, Byungwook Jung, Joohwan Chun

Proceedings Volume 5913, 591307 (2005) https://doi.org/10.1117/12.616693

KEYWORDS: Radar, Doppler effect, Target detection, Antennas, Signal processing, Detection and tracking algorithms, Signal generators, Radar signal processing, Signal detection, Digital signal processing

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Proceedings Article | 5 January 2004 Paper

Detection of a fluctuating IR target using diversity combining techniques

Ilhan Kim, Joohwan Chun

Proceedings Volume 5204, (2004) https://doi.org/10.1117/12.505000

KEYWORDS: Image sensors, Probability theory, Infrared imaging, Infrared sensors, Image filtering, Signal to noise ratio, Error analysis, Hassium, Target detection, Optical filters

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Proceedings Article | 24 December 2003 Paper

A BER analysis of a space-time signal processing scheme that combines transmitter diversity with beamforming

Ilhan Kim, Joohwan Chun

Proceedings Volume 5205, (2003) https://doi.org/10.1117/12.505305

KEYWORDS: Antennas, Optical simulations, Transmitters, Signal to noise ratio, Signal processing, Beam analyzers, Monte Carlo methods, Receivers, Code division multiplexing, Error analysis

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Proceedings Article | 19 November 2003 Paper

Attitude estimation using an imaging-sensor, accelerometers and gyros

Youngmi Park, Joohwan Chun

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.505367

KEYWORDS: Gyroscopes, Image sensors, Detection and tracking algorithms, Optical sensors, Algorithm development, Filtering (signal processing), Sensors, Image processing, Computer simulations, Error analysis

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SPIE Journal Paper | 1 January 2003

Numerical optimization approach for designing bandpass filters using fiber Bragg gratings

Jinho Bae, Joohwan Chun

OE, Vol. 42, Issue 01, (January 2003) https://doi.org/10.1117/12.10.1117/1.1524609

KEYWORDS: Bandpass filters, Fiber Bragg gratings, Linear filtering, Optical design, Optical filters, Computer simulations, Reflectors, Solids, Optical engineering, Wavelength division multiplexing

SPIE Journal Paper | 1 March 2002

Distortion analysis in stereoscopic images

Jung-Young Son, Yuri Gruts, Joohwan Chun, Yong-Jin Choi, Jieun Bahn, Vladimir Bobrinev

OE, Vol. 41, Issue 03, (March 2002) https://doi.org/10.1117/12.10.1117/1.1431249

KEYWORDS: Distortion, Cameras, Photography, Stereoscopic cameras, Projection systems, Eye, Lithium, Image analysis, Image segmentation, Optical engineering