Efficient Scalable Video Compression by Scalable Motion Coding

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Efficient Scalable Video Compression by Scalable
Motion Coding

• Review and Implementation of DWT Based Approach

Syed Jawwad Bukhari 2004-03-0028
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Overview of Presentation

• Scalable Video Coding
• Scalable Motion Coding
• DWT
• Which Approaches
• For Review
• TWAVIX
• MC-EZBC
• For Implementation
• Scalable Video coding Using DWT and
• Scalable Motion Coding
• EFFICIENT SCALABLE MOTION CODING FOR WIDE-RANGE
  SCALABLE VIDEO COMPRESSION

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SCALABLE VIDEO CODING

• Decode part of bit stream
• Stream is in form of number of layers,
• a base layer
• one or more enhancement layers
• Quality vs. bit rate

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Types of Scalability

• Spatial
• SNR
• Temporal

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Spatial Scalability
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Temporal Scalability
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Spatial and Temporal Correlation
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TWAVIX Architecture The WAvelet-based Vldm Coder
with Scalability
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Motion in adjacent frames
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Difference due to motion, Optical flow
Optical Flow
Difference
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Motion Estimation and Compensation
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Macro-block motion prediction
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Motion Vectors
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Motion Compensated Frame
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DWT
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DWT 1 Stage
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DWT 2 Stage
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DWT 5 Stage
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DWT layering
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References

• ACCURACY-SCALABLE Motion CODING FOR EFFICIENT
  SCALABLE VIDEO COMPRESSION by Boisson ,Edouard
  Guillemot
• H.264 and MPEG-4 Video Compression by Iain E. G.
  Richardson,The Robert Gordon University,
  Aberdeen, UK