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Computational Perception and Image Quality Lab
Data compression, image analysis, human visual system models, and natural scenes		 318 Advanced Technology Research Center
School of Electrical and Computer Engineering
Oklahoma State University
Stillwater, OK 74078 USA
Phone: (405) 744-2192

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Projects
 Image Quality Assessment
o Measure of Local Perceived Sharpness in Natural Images
o CSIQ: Categorical Image Quality Database
o Video Quality Assessment (VQA)
o SAMVIQ Experiment for Video Quality Assessment
o Parametric quality assessment of synthesized textures
o DRIQ: Digitally Retouched Image Quality database
o MAD: The Most Apparent Distortion: A Dual-Strategy for Image Quality Assessment
o VSNR: A Wavelet-Based Visual Signal-to-Noise Ratio
o Visual Quality of Images Containing Multiple Distortion Types
Selected Publications

  • Cuong T. Vu, Thien D. Phan, and Damon M. Chandler, "S3: A Spectral and Spatial Measure of Local Perceived Sharpness in Natural Images," Accepted for publication IEEE Transaction on Image Processing, 2011

  • Phong V. Vu, Cuong T. Vu and Damon M. Chandler, "A Spatiotemporal Most Apparent Distortion Model for Video Quality Assessment,", Proc. Intl. Conf. on ImageProcessing (ICIP), September 2011

  • K. P. Vilankar, D. M. Chandler, "Local masking in natural images measured via a new tree-structured forced-choice technique", 2011 IEEE 10th IVMSP Workshop, June 2011

  • E. C. Larson and D. M. Chandler, "The Most Apparent Distortion: A Dual Strategy for Full Reference Image Quality," Proc. SPIE Image Quality and System Performance, January 2009.

  • D. M. Chandler and S. S. Hemami, "VSNR: A Wavelet-Based Visual Signal-to-Noise Ratio for Natural Images," IEEE Transactions on Image Processing, 16, 2007.

  • D. M. Chandler, K. H. Lim, S. S. Hemami, "Effects of Spatial Correlations and Global Precedence on the Visual Fidelity of Distorted Images," Proc. Human Vision and Electronic Imaging 2006, San Jose, CA, January 2006.
 
 Region-of-Interest Estimation and Main Subject Detection
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Main Subject Detection via Adaptive Feature Refinement
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Relations Between ROIs and Image Quality
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Relations Between Object Properties and Perceived Importance

 
Selected Publications

  • S. Pinneli and D. M. Chandler, "Predicting the Perceived Interest of Objects in Images," Proc. Intl. Conf. on Image Processing (ICIP), October 2008.

  • E. C. Larson and D. M. Chandler, "Unveiling Relationships Between Regions of Interest and Image Fidelity Metrics," Proc. SPIE Visual Communications and Image Processing 2008, San Jose, CA, January 2008.

  • V. Kadiyala, S. Pinneli, E. C. Larson, and D. M. Chandler, "Quantifying the Perceived Interest of Objects in Images: Effects of Size, Location, Blur, and Contrast," Proc. Human Vision and Electronic Imaging 2008, San Jose, CA, January 2008.
 
 Image Coding and Processing
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Visually Optimal Compression of Medical Imagery

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DCQ: Dynamic Contrast-Based Quantization
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Spatially-Adaptive Compression Based on Visual Masking
Selected Publications

  • D. M. Chandler, S. S. Hemami, "Contrast-based Quantization for Lossy Wavelet Image Compression," IEEE Transactions on Image Processing, 14, 2005.

  • D. M. Chandler, N. L. Dykes, and S. S. Hemami, "Visually Lossless Compression of Digitized Radiographs based on Contrast Sensitivity and Visual Masking," Proc. Medical Imaging 2005, San Diego, CA, 2005.

  • M. G. Gaubatz, D. M. Chandler, and S. S. Hemami, "Spatially-Selective Quantization and Coding for Wavelet-Based Image Compression," Proc. IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, Philadelphia, PA, March 2005.
 
 Visual Coding, Psychophysics, and Natural Scene Statistics
o On the Perception of Bandlimited Phase Distortion in Natural Scenes
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Entropy and Mutual Information in the Power and Phase in Natural Scenes
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Estimates of the Information Content in Natural Scenes
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Visual Masking and Summation in Natural Images
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Response Normalization in Visual Neurons
Selected Publications

  • D. M. Chandler and D. J. Field, "Estimates of the Information Content and Dimensionality of Natural Scenes from Proximity Distributions," Journal of the Optical Society of America A, 24, 2007.

  • D. M. Chandler, S. S. Hemami, "Effects of Natural Images on the Detectability of Simple and Compound Wavelet Subband Quantization Distortions," Journal of the Optical Society of America A, 20, 2003.

  • D. M. Chandler and D. J. Field, "How Much Information is Carried by the Power and Phase Spectra of Natural Scenes?" Optical Society of America Fall Vision Meeting 2007, Berkeley, CA, 2007.

  • D. J. Graham, D. M. Chandler, and D. J. Field, "Can the theory of whitening explain the center-surround properties of retinal ganglion cell receptive fields?" Vision Research, 46, 2006. [PDF]
 
 
 
 
 
 
 
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