Improving SlepianWolf Coding using Object Disparity Estimation

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Improving Slepian-Wolf Coding using Object
Disparity Estimation

• David Chen
• Stanford University
• EE 398B Final Project

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Outline

• Existing Slepian-Wolf codec
• Disparity estimation based on blocks
• Disparity estimation based on objects
• Image segmentation
• Object-adaptive disparity estimation

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Existing Slepian-Wolf codec
Varodayan, 2007
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Disparity estimation based on blocks
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Disparity estimation based on objects
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Disparity estimation based on objects

• Image segmentation
• Adaptive thresholding and region labeling
• Contour extraction, region filling, and region
  labeling
• Object-adaptive disparity estimation
• Block-by-block searching
• Object-by-object searching
• Combination of two methods

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Summary of project proposal

• Extend Slepian-Wolf LDPC codec to estimate
  disparity based on objects
• Create image segmentation module in decoder,
  adaptive to many different stereo images
• Change disparity estimator to exploit both
  spatial amplitude and shape correlation