Dr. Tae-Sun Choi Profile

Dr. Tae-Sun Choi

at Gwangju Institute of Science and Technology

SPIE Involvement:

Author

Publications (63)

SPIE Journal Paper | 19 August 2013

Fast directional search algorithm for fractional pixel motion estimation for H.264 AVC

Humaira Nisar, Aamir Malik, Tae-Sun Choi, Vooi Voon Yap

JEI, Vol. 22, Issue 03, 033018, (August 2013) https://doi.org/10.1117/12.10.1117/1.JEI.22.3.033018

KEYWORDS: Motion estimation, Video, Model-based design, Error analysis, Motion models, Distortion, Algorithm development, Computer programming, Mathematical modeling, Electronics engineering

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Proceedings Article | 2 September 2009 Paper

Three-dimensional visualization of a cell by using shape from focus method

Minji Lee, Ik-Hyun Lee, Tae-Sun Choi

Proceedings Volume 7443, 744323 (2009) https://doi.org/10.1117/12.827255

KEYWORDS: Image segmentation, 3D image processing, Glasses, 3D image reconstruction, Image restoration, Liquids, Microscopy, Particles, Visualization, Transparency

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Proceedings Article | 2 September 2009 Paper

Estimating best focused points through similarity matrix

Muhammad Tariq Mahmood, Tae-Sun Choi

Proceedings Volume 7443, 74432C (2009) https://doi.org/10.1117/12.827226

KEYWORDS: 3D image processing, Optical filters, 3D modeling, Cameras, Point spread functions, Control systems, Machine vision, Video microscopy, Image processing algorithms and systems, Shape analysis

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Proceedings Article | 2 September 2009 Paper

False positive reduction for pulmonary nodule detection using two-dimensional principal component analysis

Wook-Jin Choi, Tae-Sun Choi

Proceedings Volume 7443, 744322 (2009) https://doi.org/10.1117/12.827252

KEYWORDS: Principal component analysis, Computed tomography, Databases, Digital image processing, Current controlled current source, Binary data, Lung, Lung imaging, Cancer, Lung cancer

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Proceedings Article | 2 September 2009 Paper

Approximating shape from focus by averaging filter

Seong-O Shim, Tae-Sun Choi

Proceedings Volume 7443, 744320 (2009) https://doi.org/10.1117/12.827021

KEYWORDS: Digital filtering, 3D image processing, Fermium, Frequency modulation, Distortion, Cameras, Control systems, Statistical analysis, Device simulation, CCD cameras

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SPIE Journal Paper | 1 May 2009

Shape from focus using principal component analysis in discrete wavelet transform

Muhammad Tariq Mahmood, Seong-O Shim, Tae-Sun Choi

OE, Vol. 48, Issue 05, 057203, (May 2009) https://doi.org/10.1117/12.10.1117/1.3130232

KEYWORDS: Principal component analysis, Discrete wavelet transforms, Wavelets, Shape analysis, Image filtering, Optical engineering, Optical filters, Image processing, 3D image processing, Cameras

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SPIE Journal Paper | 1 October 2008

Fast block motion estimation algorithm based on motion classification and directional search patterns

Humaira Nisar, Tae-Sun Choi

OE, Vol. 47, Issue 10, 107001, (October 2008) https://doi.org/10.1117/12.10.1117/1.2996335

KEYWORDS: Motion estimation, Video, Optical engineering, Image quality, Video coding, Image classification, Signal to noise ratio, Distortion, Video compression, Quality measurement

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SPIE Journal Paper | 1 October 2008

Optimization technique for three-dimensional shape recovery from image focus

Muhammad Ahmad, Tae-Sun Choi

JEI, Vol. 17, Issue 04, 043013, (October 2008) https://doi.org/10.1117/12.10.1117/1.3013460

KEYWORDS: 3D image processing, Image restoration, Matrices, Cameras, 3D image reconstruction, Fermium, Frequency modulation, Computer programming, Image analysis, Optimization (mathematics)

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