Dr. Chulhee Lee Profile

Dr. Chulhee Lee

Professor at Yonsei Univ

SPIE Involvement:

Author | Editor

Publications (77)

Proceedings Article | 5 May 2017 Paper

Size and rotation invariant alphabet recognition

Junho Rim, Chulhee Lee

Proceedings Volume 10195, 1019517 (2017) https://doi.org/10.1117/12.2263173

KEYWORDS: Algorithm development, Image classification, Detection and tracking algorithms, Computer vision technology, Information visualization, Machine vision, Cameras, Enhanced vision, Visualization, Robots

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Proceedings Article | 1 May 2017 Paper

Feature extraction for deep neural networks based on decision boundaries

Seongyoun Woo, Chulhee Lee

Proceedings Volume 10203, 1020306 (2017) https://doi.org/10.1117/12.2263172

KEYWORDS: Feature extraction, Neural networks, Principal component analysis, Databases, Ferroelectric LCDs, Transform theory, Pattern recognition, Algorithm development, Evolutionary algorithms, Neurons

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Proceedings Article | 19 May 2016 Paper

Two-stage compression of hyperspectral images with enhanced classification performance

Chulhee Lee, Sungwook Youn, Eunjae Lee, Taeuk Jeong, Joan Serra-Sagristà

Proceedings Volume 9874, 98740A (2016) https://doi.org/10.1117/12.2225568

KEYWORDS: Image compression, Hyperspectral imaging, Image classification, Computer programming, Feature extraction, Data compression, Hyperspectral imaging, Image classification, Principal component analysis, Signal to noise ratio, 3D image processing, Reconstruction algorithms

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Proceedings Article | 19 May 2016 Paper

Remote logo detection using angle-distance histograms

Sungwook Youn, Jiheon Ok, Sangwook Baek, Seongyoun Woo, Chulhee Lee

Proceedings Volume 9874, 98740K (2016) https://doi.org/10.1117/12.2225569

KEYWORDS: Algorithm development, Computer vision technology, Light sources and illumination, Detection and tracking algorithms, Visualization, Image segmentation, Target detection, Machine vision, Object recognition, Feature extraction

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Proceedings Article | 19 May 2016 Paper

Imbalanced data classification using reduced multivariate polynomial

Seongyoun Woo, Chulhee Lee

Proceedings Volume 9874, 98740N (2016) https://doi.org/10.1117/12.2224452

KEYWORDS: Databases, Bismuth, Blood, Single photon emission computed tomography, Target detection, Data modeling, Data communications, Electronics engineering, Facial recognition systems, Associative arrays

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Proceedings Article | 19 May 2016 Paper

Discriminant power analyses of non-linear dimension expansion methods

Seongyoun Woo, Chulhee Lee

Proceedings Volume 9874, 98740O (2016) https://doi.org/10.1117/12.2224454

KEYWORDS: Neural networks, Neurons, Databases, Data centers, Data modeling, Blood, Liver, Single photon emission computed tomography, Heart, Toxic industrial chemicals

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Proceedings Article | 2 June 2015 Paper

Effects of compression on classification performance and discriminant information preservation in remotely sensed data

Chulhee Lee, Sungwook Youn, Jeoung Yeol Baek, Joan Serra Sagristà

Proceedings Volume 9501, 950103 (2015) https://doi.org/10.1117/12.2180223

KEYWORDS: JPEG2000, Image compression, Hyperspectral imaging, Signal to noise ratio, Image classification, Wavelets, 3D image reconstruction, 3D image processing, Principal component analysis, Image quality

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SPIE Journal Paper | 28 May 2015

Perceptual video quality comparison of 3DTV broadcasting using multimode service systems

Jiheon Ok, Chulhee Lee

OE, Vol. 54, Issue 05, 053116, (May 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.5.053116

KEYWORDS: Video, 3D displays, Molybdenum, Seaborgium, 3D video streaming, Optical engineering, Video processing, Glasses, Televisions, 3D imaging standards

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Proceedings Article | 17 March 2015 Paper

Effects of blurring and vertical misalignment on visual fatigue of stereoscopic displays

Sangwook Baek, Chulhee Lee

Proceedings Volume 9391, 93910T (2015) https://doi.org/10.1117/12.2083355

KEYWORDS: Visualization, Video, 3D image processing, Stereoscopic displays, Cameras, Visual process modeling, 3D modeling, LCDs, Tablets, 3D visualizations

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Proceedings Article | 11 March 2015 Paper

Communication target object recognition for D2D connection with feature size limit

Jiheon Ok, Soochang Kim, Young-hoon Kim, Chulhee Lee

Proceedings Volume 9411, 94110B (2015) https://doi.org/10.1117/12.2083321

KEYWORDS: RGB color model, Binary data, Detection and tracking algorithms, Feature extraction, Image filtering, Target recognition, Object recognition, Mobile communications, Cameras, Printing

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Proceedings Article | 22 May 2014 Paper

Multi-dimensional edge detection operators

Sungwook Youn, Chulhee Lee

Proceedings Volume 9124, 912407 (2014) https://doi.org/10.1117/12.2052684

KEYWORDS: Edge detection, Image segmentation, Hyperspectral imaging, Detection and tracking algorithms, Principal component analysis, Lawrencium, Remote sensing, Sensors, Filtering (signal processing), Image sensors

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SPIE Journal Paper | 25 March 2014 Open Access

Frequency sensitivity for video compression

Guiwon Seo, Jonghwa Lee, Chulhee Lee

OE, Vol. 53, Issue 03, 033107, (March 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.3.033107

KEYWORDS: Quantization, Video, Video compression, Video coding, Optical engineering, Visual system, Performance modeling, Spatial frequencies, Standards development, Visual process modeling

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Proceedings Article | 7 March 2014 Paper

Stain defect detection for mobile phone camera modules

Sehee Hong, Chulhee Lee

Proceedings Volume 9024, 902403 (2014) https://doi.org/10.1117/12.2043223

KEYWORDS: Defect detection, Wavelength division multiplexing, Cameras, Detection and tracking algorithms, Cell phones, Optical filters, Image filtering, Image processing, Edge detection, Inspection

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Proceedings Article | 24 September 2013 Paper

Fast implementation of neural network classification

Guiwon Seo, Jiheon Ok, Chulhee Lee

Proceedings Volume 8871, 887107 (2013) https://doi.org/10.1117/12.2026666

KEYWORDS: Neural networks, Artificial neural networks, Image classification, Computer simulations, Neurons, Electronics engineering, Image analysis, Image processing, Signal processing, Complex systems

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Proceedings Article | 12 March 2013 Paper

Towards standardized 3DTV QoE assessment: cross-lab study on display technology and viewing environment parameters

Marcus Barkowsky, Jing Li, Taehwan Han, Sungwook Youn, Jiheon Ok, Chulhee Lee, Christer Hedberg, Inirajith Ananth, Kun Wang, Kjell Brunnström, Patrick Le Callet

Proceedings Volume 8648, 864809 (2013) https://doi.org/10.1117/12.2004050

KEYWORDS: Video, Molybdenum, Statistical analysis, Camera shutters, 3D imaging standards, Display technology, Video coding, Glasses, Visualization, Standards development

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Proceedings Article | 19 October 2012 Paper

Automotive camera quality measurements based on stability, contrast and intensity metrics in text regions

Sungwook Youn, Chulhee Lee

Proceedings Volume 8514, 851409 (2012) https://doi.org/10.1117/12.943228

KEYWORDS: Cameras, Video, Quality measurement, Databases, Molybdenum, Standards development, Photography, Optical filters, Intelligence systems, Digital cameras

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Proceedings Article | 19 October 2012 Paper

Video compression based on frequency sensitivity

Guiwon Seo, Sungwook Youn, Chulhee Lee

Proceedings Volume 8514, 85140U (2012) https://doi.org/10.1117/12.943227

KEYWORDS: Quantization, Video, Video compression, Visual system, Video coding, Molybdenum, Distortion, Image compression, Data processing, Electronics engineering

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SPIE Journal Paper | 5 June 2012

Deinterlacing with reduced flickering

Jonghwa Lee, Chulhee Lee

OE, Vol. 51, Issue 6, 067401, (June 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.6.067401

KEYWORDS: Video, RGB color model, Visualization, Distortion, Optical engineering, Neural networks, Motion estimation, Televisions, Video processing, Visibility

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Proceedings Article | 17 September 2011 Paper

Low complexity pixel-based halftone detection

Jiheon Ok, Seong Wook Han, Mielikainen Jarno, Chulhee Lee

Proceedings Volume 8157, 81570N (2011) https://doi.org/10.1117/12.895089

KEYWORDS: Halftones, Printing, Electroluminescence, Neodymium, Scanners, Image segmentation, Internet, Multimedia, Field emission displays, Detection and tracking algorithms

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Proceedings Article | 17 September 2011 Paper

Color/mono classification of scanned images

Sungwook Youn, Seong Wook Han, Chulhee Lee

Proceedings Volume 8157, 815709 (2011) https://doi.org/10.1117/12.894988

KEYWORDS: Image resolution, Image classification, Linear filtering, RGB color model, Scanners, Sensors, Distance measurement, Image filtering, Electronics engineering, Printing

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Proceedings Article | 17 September 2011 Paper

Real-time lossless compression for HDTV video using a GPGPU

Guiwon Seo, Mielikainen Jarno, Sungwook Youn, Chulhee Lee

Proceedings Volume 8157, 81570Z (2011) https://doi.org/10.1117/12.894987

KEYWORDS: Video compression, Video, Computer programming, Video acceleration, Image compression, Parallel processing, Video coding, Video processing, Image processing, Databases

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SPIE Journal Paper | 1 June 2011

Video quality measurement for multimedia applications using reduced-reference signals

Chulhee Lee, Sangwook Lee, Jonghwa Lee, Kwon Lee, Hyunsoo Choi, Guiwon Seo, Jonggeun Park

OE, Vol. 50, Issue 06, 067403, (June 2011) https://doi.org/10.1117/12.10.1117/1.3589298

KEYWORDS: Video, Multimedia, Quality measurement, Video processing, Wavelets, Optical engineering, Image quality, Image transmission, LCDs, Databases

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SPIE Journal Paper | 1 October 2010

Compression of hyperspectral images with discriminant features enhanced

Chulhee Lee, Euisun Choi, Taeuk Jeong, Sangwook Lee, Jonghwa Lee

JARS, Vol. 4, Issue 01, 041764, (October 2010) https://doi.org/10.1117/12.10.1117/1.3517719

KEYWORDS: Image compression, JPEG2000, Feature extraction, Hyperspectral imaging, Signal to noise ratio, Image classification, 3D image processing, 3D image enhancement, Buildings, Discrete wavelet transforms

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SPIE Journal Paper | 1 September 2010

Constant coefficients linear prediction for lossless compression of ultraspectral sounder data using a graphics processing unit

Jarno Mielikainen, Risto Honkanen, Bormin Huang, Pekka Toivanen, Chulhee Lee

JARS, Vol. 4, Issue 01, 041774, (September 2010) https://doi.org/10.1117/12.10.1117/1.3496907

KEYWORDS: Image compression, Graphics processing units, Data compression, Computer programming, Visualization, Image processing, Data storage, Matrices, Computer architecture, Clocks

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Proceedings Article | 24 August 2010 Paper

Unsupervised segmentation for hyperspectral images using mean shift segmentation

Sangwook Lee, Chulhee Lee

Proceedings Volume 7810, 781011 (2010) https://doi.org/10.1117/12.862176

KEYWORDS: Image segmentation, Hyperspectral imaging, Principal component analysis, Digital filtering, Image filtering, Remote sensing, Distance measurement, Quantitative analysis, Image processing, Surveillance

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Proceedings Article | 24 August 2010 Paper

Improved panchromatic sharpening

Jonghwa Lee, Sangwook Lee, Chulhee Lee

Proceedings Volume 7810, 78100T (2010) https://doi.org/10.1117/12.862243

KEYWORDS: Image resolution, Earth observing sensors, Linear filtering, High resolution satellite images, Discrete wavelet transforms, Resolution enhancement technologies, Spatial resolution, Modulation transfer functions, Image processing, Image enhancement

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SPIE Journal Paper | 1 April 2010

No-reference image-quality metric based on blur radius and visual blockiness

Taeuk Jeong, Younghie Kim, Chulhee Lee

OE, Vol. 49, Issue 04, 045001, (April 2010) https://doi.org/10.1117/12.10.1117/1.3366671

KEYWORDS: Image quality, Image compression, Visualization, Image processing, JPEG2000, Visibility, Optical engineering, Databases, Image quality standards, Neural networks

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SPIE Journal Paper | 1 February 2010

Bayesian rule-based complex background modeling and foreground detection

Jong Geun Park, Chulhee Lee

OE, Vol. 49, Issue 02, 027006, (February 2010) https://doi.org/10.1117/12.10.1117/1.3319820

KEYWORDS: RGB color model, Lithium, Statistical analysis, Optical engineering, Data modeling, Binary data, Visual process modeling, Cameras, Detection and tracking algorithms, Image processing

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Proceedings Article | 2 September 2009 Paper

Perceptual video quality comparison of various deinterlacing methods

Jonghwa Lee, Sangwook Lee, Chulhee Lee

Proceedings Volume 7443, 74430O (2009) https://doi.org/10.1117/12.827237

KEYWORDS: Video, Video compression, Molybdenum, Signal processing, LCDs, Video processing, Neural networks, Visualization, Motion estimation, Plasma display panels

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Proceedings Article | 2 September 2009 Paper

Deinterlacing with reduced flickering

Jonghwa Lee, Sangwook Lee, Chulhee Lee

Proceedings Volume 7443, 74430Y (2009) https://doi.org/10.1117/12.827240

KEYWORDS: Video, Video processing, Signal processing, Signal attenuation, LCDs, Visualization, Plasma display panels, Image resolution, Electronics engineering, Flat panel displays

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Proceedings Article | 31 August 2009 Paper

Automated display of hyperspectral images with unsupervised segmentation

Sangwook Lee, Jonghwa Lee, Chulhee Lee

Proceedings Volume 7455, 74550Y (2009) https://doi.org/10.1117/12.826962

KEYWORDS: Image segmentation, Hyperspectral imaging, Principal component analysis, Feature extraction, Visualization, RGB color model, Image fusion, Independent component analysis, Image processing algorithms and systems, Binary data

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Proceedings Article | 31 August 2009 Paper

Bit allocation for 2D compression of hyperspectral images for classification

Sangwook Lee, Jonghwa Lee, Chulhee Lee

Proceedings Volume 7455, 745507 (2009) https://doi.org/10.1117/12.826958

KEYWORDS: Hyperspectral imaging, Signal to noise ratio, Image compression, Image classification, Feature extraction, Image segmentation, Environmental sensing, Image sensors, Data storage, Geology

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SPIE Journal Paper | 1 March 2009

Subjective video quality comparison using various displays

Hyunsoo Choi, Taeuk Jeong, Chulhee Lee

OE, Vol. 48, Issue 03, 037002, (March 2009) https://doi.org/10.1117/12.10.1117/1.3089699

KEYWORDS: LCDs, Video, Video processing, CRTs, Molybdenum, Quality measurement, Multimedia, Optical engineering, Plasma display panels, Analog electronics

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Proceedings Article | 11 February 2009 Paper

Optimal input sizes for neural network de-interlacing

Hyunsoo Choi, Guiwon Seo, Chulhee Lee

Proceedings Volume 7245, 72451A (2009) https://doi.org/10.1117/12.810569

KEYWORDS: Video, Neural networks, Motion estimation, LCDs, Information technology, Electronics engineering, Analog electronics, Televisions, Plasma display panels, Flat panel displays

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Proceedings Article | 11 February 2009 Paper

Efficient implementation of neural network deinterlacing

Guiwon Seo, Hyunsoo Choi, Chulhee Lee

Proceedings Volume 7245, 724519 (2009) https://doi.org/10.1117/12.810571

KEYWORDS: Neural networks, Video, Video processing, Data processing, Evolutionary algorithms, Neurons, Detection and tracking algorithms, LCDs, Plasma display panels, Flat panel displays

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Proceedings Article | 5 February 2009 Paper

Video calibration for spatial-temporal registration with gain and offset adjustments

Chulhee Lee, Jonghwa Lee, Guiwon Seo

Proceedings Volume 7244, 72440F (2009) https://doi.org/10.1117/12.810489

KEYWORDS: Video, Video processing, Quality measurement, Calibration, Error analysis, Quality systems, Computer programming, Receivers, Digital filtering, Image processing

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Proceedings Article | 19 January 2009 Paper

Subjective video quality comparison of HDTV monitors

G. Seo, C. Lim, S. Lee, C. Lee

Proceedings Volume 7242, 724218 (2009) https://doi.org/10.1117/12.810574

KEYWORDS: Video, LCDs, Video processing, Plasma display panels, Molybdenum, Quality measurement, Testing and analysis, Imaging systems, Electronics engineering, Flat panel displays

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Proceedings Article | 5 September 2008 Paper

Unsupervised segmentation of hyperspectral images

Sangwook Lee, Chulhee Lee

Proceedings Volume 7084, 70840B (2008) https://doi.org/10.1117/12.795807

KEYWORDS: Image segmentation, Image fusion, Image processing algorithms and systems, Hyperspectral imaging, Binary data, Edge detection, Detection and tracking algorithms, Evolutionary algorithms, Remote sensing, Satellite imaging

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Proceedings Article | 20 March 2008 Paper

Efficient color coding for color filter arrays

Chulhee Lee, Jonghwa Lee

Proceedings Volume 6817, 68170K (2008) https://doi.org/10.1117/12.767986

KEYWORDS: Optical filters, Image compression, Image sensors, Computer programming, Sensors, Imaging arrays, Image processing, Consumer electronics, Digital electronics, Digital filtering

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Proceedings Article | 19 March 2008 Paper

Illumination normalization for face recognition using the census transform

Ji Hoon Kim, Jong Geun Park, Chulhee Lee

Proceedings Volume 6814, 681416 (2008) https://doi.org/10.1117/12.776193

KEYWORDS: Facial recognition systems, Light sources and illumination, Binary data, Principal component analysis, Databases, 3D modeling, Image visualization, Feature extraction, Illumination engineering, Detection and tracking algorithms

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SPIE Journal Paper | 1 March 2008

Edge-dependent deinterlacing using weighted motion estimation

Taeuk Jeong, Chulhee Lee

OE, Vol. 47, Issue 03, 037008, (March 2008) https://doi.org/10.1117/12.10.1117/1.2898899

KEYWORDS: Motion estimation, Video, Optical engineering, Reliability, Signal to noise ratio, LCDs, Nonlinear filtering, Image processing, Visualization, Information technology

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SPIE Journal Paper | 1 October 2007

Estimation of the peak signal-to-noise ratio for compressed video based on generalized Gaussian modeling

Jihwan Choe, Chulhee Lee

OE, Vol. 46, Issue 10, 107401, (October 2007) https://doi.org/10.1117/12.10.1117/1.2799103

KEYWORDS: Video, Video compression, Video processing, Signal to noise ratio, Performance modeling, Optical engineering, Error analysis, Quantization, Quality measurement, Mathematical modeling

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Proceedings Article | 24 August 2006 Paper

Deinterlacing based on motion compensation with variable block sizes

Inho Kim, Taeuk Jeong, Chulhee Lee

Proceedings Volume 6312, 63120B (2006) https://doi.org/10.1117/12.680382

KEYWORDS: Motion estimation, Video, Electronics engineering, Display technology, Televisions, Digital image processing, Visual system, Sinc filters

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SPIE Journal Paper | 1 July 2006

Deinterlacing with selective motion compensation

Taeuk Jeong, Younghie Kim, Kwanghoon Sohn, Chulhee Lee

OE, Vol. 45, Issue 07, 077001, (July 2006) https://doi.org/10.1117/12.10.1117/1.2218851

KEYWORDS: Video, Motion estimation, Video compression, Optical engineering, Nonlinear filtering, Digital filtering, Motion analysis, Optical filters, Electronics engineering, Televisions

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Proceedings Article | 15 March 2006 Paper

Automated segmentation of three-dimensional MR brain images

Jonggeun Park, Byungjun Baek, Choong-Il Ahn, Kyo Bum Ku, Dong Kyun Jeong, Chulhee Lee

Proceedings Volume 6144, 61444R (2006) https://doi.org/10.1117/12.655532

KEYWORDS: Brain, Image segmentation, Neuroimaging, Magnetic resonance imaging, 3D image processing, Surface plasmons, Spinal cord, Surgery, Tissues, Image processing

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Proceedings Article | 2 February 2006 Paper

Deinterlacing in spatial and temporal domain

Inho Kim, Chulhee Lee

Proceedings Volume 6065, 606518 (2006) https://doi.org/10.1117/12.651337

KEYWORDS: Motion estimation, Video, LCDs, Reliability, Electronics engineering, Displays, Plasma display panels, Computational imaging, Electronic imaging, Switches

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Proceedings Article | 17 January 2006 Paper

Comparison of various subjective video quality assessment methods

C. Lee, H. Choi, E. Lee, S. Lee, J. Choe

Proceedings Volume 6059, 605906 (2006) https://doi.org/10.1117/12.651056

KEYWORDS: Video, Video processing, Molybdenum, Testing and analysis, Multimedia, LCDs, Analytical research, Color vision, Color blindness, Electronics engineering

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SPIE Journal Paper | 1 January 2006

Objective video quality assessment

Chulhee Lee, Seungdeuk Cho, Jihwan Choe, Taeuk Jeong, Wonsuk Ahn, Eunjae Lee

OE, Vol. 45, Issue 01, 017004, (January 2006) https://doi.org/10.1117/12.10.1117/1.2160515

KEYWORDS: Video, Video processing, Quality measurement, Image quality, Edge detection, Detection and tracking algorithms, Image processing, Optical engineering, Data modeling, Signal to noise ratio

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Proceedings Article | 14 March 2005 Paper

Vision-based speaker location detection

Jaehyun Lim, Jonggeun Park, Chulhee Lee

Proceedings Volume 5685, (2005) https://doi.org/10.1117/12.587326

KEYWORDS: Video, Laser induced plasma spectroscopy, Skin, Facial recognition systems, Image segmentation, Eye, Nose, Acoustics, Detection and tracking algorithms, Environmental sensing

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Proceedings Article | 1 March 2005 Paper

Robust iris recognition with region division

Jonggeun Park, Chulhee Lee

Proceedings Volume 5672, (2005) https://doi.org/10.1117/12.588038

KEYWORDS: Iris recognition, Wavelet transforms, Feature extraction, Eye, Wavelets, Biometrics, Detection and tracking algorithms, Convolution, Sclera, Cameras

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Proceedings Article | 17 January 2005 Paper

Video quality comparison on LCD monitors

T. Jeong, J. Choe, J. Lim, H. Choi, E. Lee, C. Lee

Proceedings Volume 5668, (2005) https://doi.org/10.1117/12.588053

KEYWORDS: Video, LCDs, Video processing, Video compression, Quality measurement, Multimedia, Cell phones, Personal digital assistants, CRTs, Image quality

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SPIE Journal Paper | 1 May 2004

Rapid hybrid interpolation methods

Chulhee Lee, Seongduk Cho, Wonseok Ahn, Kwanghoon Sohn

OE, Vol. 43, Issue 05, (May 2004) https://doi.org/10.1117/12.10.1117/1.1666866

KEYWORDS: Image processing, Optical engineering, Video, Video compression, Video processing, Digital cameras, Optical filters, Signal processing, Image quality, Motion estimation

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Proceedings Article | 18 January 2004 Paper

Edge degradation for objective video quality metrics

Chulhee Lee, Sungdeuk Cho, Jihwan Choe, Taewook Jung, Wonsoek Ahn

Proceedings Volume 5308, (2004) https://doi.org/10.1117/12.529804

KEYWORDS: Video, Video processing, Quality measurement, Image processing, Edge detection, Visual system, Detection and tracking algorithms, Image quality, Error analysis, Visual process modeling

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Proceedings Article | 19 November 2003 Paper

Fast and efficient video registration methods for full reference objective video quality assessment

Chulhee Lee, Jihwan Choe, Heeyoung Kim

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.507030

KEYWORDS: Video, Video processing, Wavelet transforms, Image registration, Image quality, Analog electronics, Televisions, Quality measurement, Quality systems, Electronic filtering

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Proceedings Article | 19 November 2003 Paper

Analysis of objective video quality metric using wavelet transform

Chulhee Lee, Jihwan Choe, Wonseok Ahn, Taeuk Jeong, Sungdeuk Cho

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.506680

KEYWORDS: Video, Video processing, Wavelet transforms, 3D modeling, Spatial frequencies, Performance modeling, Analytical research, Quality measurement, Wavelets, Process modeling

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Proceedings Article | 7 May 2003 Paper

Deinterlacing using directional interpolation and motion compensation

Ohjae Kwon, Kwanghoon Sohn, Chulhee Lee

Proceedings Volume 5022, (2003) https://doi.org/10.1117/12.476373

KEYWORDS: Motion estimation, Video, Detection and tracking algorithms, Digital filtering, Biometrics, Telecommunications, Video processing, Motion detection, Visualization, LCDs

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Proceedings Article | 7 May 2003 Paper

Fast hybrid interpolation

Chulhee Lee, Seungdeuk Cho

Proceedings Volume 5022, (2003) https://doi.org/10.1117/12.476374

KEYWORDS: Image processing, Video compression, Bismuth, Video, Data modeling, Electronics engineering, CCD cameras, Digital cameras, Motion estimation, Video processing

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SPIE Journal Paper | 1 January 2003

Objective measurements of video quality using the wavelet transform

Chulhee Lee, Ohjae Kwon

OE, Vol. 42, Issue 01, (January 2003) https://doi.org/10.1117/12.10.1117/1.1523420

KEYWORDS: Video, Wavelet transforms, Video processing, Quality measurement, Wavelets, Image processing, Optical engineering, 3D modeling, Video compression, Visual system

Proceedings Article | 13 November 2001 Paper

Geometry of decision boundaries of neural networks

Chulhee Lee, Ohjae Kwon, Eunsuk Jung

Proceedings Volume 4471, (2001) https://doi.org/10.1117/12.449334

KEYWORDS: Neurons, Neural networks, Brain mapping, Aluminum, Electronics engineering, Pattern recognition, Optical character recognition, Remote sensing, Statistical analysis, Optical signal processing

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SPIE Journal Paper | 1 November 2001

Error-resilient zerotree wavelet video coding

Kwanghoon Sohn, Chulhee Lee, Jungryul Ryou, Woo-Young Jang

OE, Vol. 40, Issue 11, (November 2001) https://doi.org/10.1117/12.10.1117/1.1409940

KEYWORDS: Wavelets, Video coding, Wavelet transforms, Image compression, Computer programming, Optical engineering, Video, Algorithm development, 3D image processing, Image processing algorithms and systems

Proceedings Article | 28 August 2001 Paper

Directional interpolation using neural networks

Chulhee Lee, Bongjun Lee, Kwanghoon Sohn

Proceedings Volume 4388, (2001) https://doi.org/10.1117/12.438261

KEYWORDS: Neural networks, Brain, Neuroimaging, 3D image processing, Magnetic resonance imaging, Image processing, Evolutionary algorithms, Magnetism, Distortion, Space operations

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SPIE Journal Paper | 1 May 2001

Error-resilient zero-tree wavelet image coding technique over noisy channels

Woo-Young Jang, Jung Kyu Ryou, Chulhee Lee, Kwanghoon Sohn

OE, Vol. 40, Issue 05, (May 2001) https://doi.org/10.1117/12.10.1117/1.1357192

KEYWORDS: Wavelets, Image compression, Wavelet transforms, Computer programming, Forward error correction, Error analysis, Algorithm development, Optical engineering, Computer simulations, Automatic repeat request

Proceedings Article | 28 December 2000 Paper

Automated segmentation of three-dimensional sagittal brain MR images by masking and restoration operations

Shin Huh, Kwanghoon Sohn, Chulhee Lee

Proceedings Volume 4115, (2000) https://doi.org/10.1117/12.411580

KEYWORDS: Image segmentation, Brain, Neuroimaging, Magnetic resonance imaging, Image processing algorithms and systems, 3D image processing, Surgery, Tissues, Algorithm development, Medical imaging

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Proceedings Article | 2 November 2000 Paper

Analysis of decision boundaries of radial basis function neural networks

Eunsuk Jung, Chulhee Lee

Proceedings Volume 4113, (2000) https://doi.org/10.1117/12.405843

KEYWORDS: Neurons, Neural networks, Optical spheres, Brain mapping, Computer engineering, Speech recognition, Remote sensing, Optical signal processing

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Proceedings Article | 2 November 2000 Paper

Analyzing decision boundaries of neural networks

Chulhee Lee, Eunsuk Jung

Proceedings Volume 4113, (2000) https://doi.org/10.1117/12.405857

KEYWORDS: Neural networks, Neurons, Chlorine, Curium, Computer engineering, Pattern recognition, Optical character recognition, Remote sensing, Optical signal processing, Solids

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Proceedings Article | 17 July 2000 Paper

Three-dimensional interpolation for brain MR images

Chulhee Lee, Shin Huh, Kwanghoon Sohn

Proceedings Volume 4044, (2000) https://doi.org/10.1117/12.391919

KEYWORDS: Brain, 3D image processing, Neuroimaging, Magnetic resonance imaging, Surgery, Magnetism, Optical spheres, 3D image reconstruction, Space operations, Signal to noise ratio

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Proceedings Article | 30 May 2000 Paper

Error-resilient video coding technique based on wavelet transform

Kwanghoon Sohn, Chulhee Lee, Woo-Young Jang

Proceedings Volume 4067, (2000) https://doi.org/10.1117/12.386636

KEYWORDS: Wavelets, Image compression, Video coding, Wavelet transforms, Computer programming, 3D image processing, Computer simulations, Algorithm development, Signal to noise ratio, Video

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SPIE Journal Paper | 1 April 2000

Automated segmentation of the corpus callosum in midsagittal brain magnetic resonance images

Chulhee Lee, Shin Huh, Terence Ketter, Michael Unser

OE, Vol. 39, Issue 04, (April 2000) https://doi.org/10.1117/12.10.1117/1.602449

KEYWORDS: Image segmentation, Brain, Neuroimaging, Magnetic resonance imaging, Tissues, Optical engineering, Detection and tracking algorithms, Magnetism, Evolutionary algorithms, Object recognition

Proceedings Article | 1 October 1998 Paper

Unsupervised segmentation of 3D brain MR images

Chulhee Lee, Shin Huh

Proceedings Volume 3460, (1998) https://doi.org/10.1117/12.323224

KEYWORDS: Image segmentation, Brain, Neuroimaging, Magnetic resonance imaging, 3D image processing, Binary data, Image processing algorithms and systems, Tissues, Skull, Image processing

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Proceedings Article | 1 October 1998 Paper

Separability measures for error estimation of two normally distributed classes

Joonyong Hong, Chulhee Lee

Proceedings Volume 3460, (1998) https://doi.org/10.1117/12.323225

KEYWORDS: Error analysis, Distance measurement, Statistical analysis, Image classification, Remote sensing, Ions, Electronics engineering, Digital image processing, Pattern recognition, Matrices

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Proceedings Article | 2 July 1998 Paper

Optimal feature extraction for normally distributed data

Chulhee Lee, Euisun Choi, Jaehong Kim

Proceedings Volume 3372, (1998) https://doi.org/10.1117/12.312603

KEYWORDS: Feature extraction, Image classification, Principal component analysis, Space reconnaissance, Pattern recognition, Matrices, Statistical analysis, Electronics engineering, Remote sensing, Image processing

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Proceedings Article | 24 October 1997 Paper

Error prediction of the Gaussian ML classifier in remotely sensed data

Chulhee Lee

Proceedings Volume 3159, (1997) https://doi.org/10.1117/12.279445

KEYWORDS: Error analysis, Image classification, Statistical analysis, Principal component analysis, Remote sensing, Chlorine, Spectroscopy, Electronics engineering, Image processing, Data analysis

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Proceedings Article | 23 October 1996 Paper

Comparison of algorithms for the fast computation of the continuous wavelet transform

Michael Vrhel, Chulhee Lee, Michael Unser

Proceedings Volume 2825, (1996) https://doi.org/10.1117/12.255253

KEYWORDS: Wavelets, Continuous wavelet transforms, Finite impulse response filters, Optical filters, Digital filtering, Convolution, Protactinium, Positron emission tomography, Wavelet transforms, MATLAB

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Proceedings Article | 27 February 1996 Paper

Automated connectivity-based thresholding segmentation of midsagittal brain MR images

Chulhee Lee, Michael Unser, Terence Ketter

Proceedings Volume 2727, (1996) https://doi.org/10.1117/12.233286

KEYWORDS: Image segmentation, Brain, Neuroimaging, Magnetic resonance imaging, Binary data, Image processing algorithms and systems, Tissues, Algorithm development, Skull, 3D image processing

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Proceedings Article | 1 September 1995 Paper

Fractal dimension estimation using the fast continuous wavelet transform

Michael Vrhel, Chulhee Lee, Michael Unser

Proceedings Volume 2569, (1995) https://doi.org/10.1117/12.217603

KEYWORDS: Wavelets, Continuous wavelet transforms, Fractal analysis, Digital filtering, Finite impulse response filters, Wavelet transforms, Convolution, Algorithms, Error control coding, Optical filters

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Proceedings Article | 22 August 1995 Paper

Automatic recognition of corpus callosum from sagittal brain MR images

Chulhee Lee, Michael Unser, Terence Ketter

Proceedings Volume 2564, (1995) https://doi.org/10.1117/12.217439

KEYWORDS: Brain, Magnetic resonance imaging, Neuroimaging, Detection and tracking algorithms, Image segmentation, Evolutionary algorithms, Object recognition, Image processing, Computer vision technology, Cerebrum

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Proceedings Article | 8 July 1994 Paper

Global approach to multivariate correlation analysis of brain positron emission tomographic images

Chulhee Lee, Michael Unser, Terence Ketter

Proceedings Volume 2299, (1994) https://doi.org/10.1117/12.179261

KEYWORDS: Positron emission tomography, Brain, Neuroimaging, Brain mapping, Image analysis, Matrices, Tomography, Biological research, Thulium, Visualization

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