Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT...
-
date post
20-Dec-2015 -
Category
Documents
-
view
220 -
download
0
Transcript of Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT...
![Page 1: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/1.jpg)
Efficient Scalable Video Compression by Scalable Motion Coding
Review and Implementation of DWT Based Approach
Syed Jawwad Bukhari
2004-03-0028
![Page 2: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/2.jpg)
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
![Page 3: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/3.jpg)
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
![Page 4: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/4.jpg)
Types of Scalability
Spatial SNR Temporal
![Page 5: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/5.jpg)
Spatial Scalability
Images adapted from [2]
![Page 6: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/6.jpg)
Temporal Scalability
Image adapted from [2]
![Page 7: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/7.jpg)
Spatial and Temporal Correlation
Image adapted from [2]
![Page 8: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/8.jpg)
TWAVIX Architecture The WAvelet-based Vldm Coder with Scalability
Image adapted from [1]
![Page 9: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/9.jpg)
Motion in adjacent frames
![Page 10: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/10.jpg)
Difference due to motion, Optical flow
Difference Optical Flow
Image adapted from [2]
![Page 11: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/11.jpg)
Motion Estimation and Compensation
Image adapted from [2]
![Page 12: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/12.jpg)
Macro-block motion prediction
Image adapted from [2]
![Page 13: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/13.jpg)
Motion Vectors
Image adapted from [2]
![Page 14: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/14.jpg)
Motion Compensated Frame
Image adapted from [2]
![Page 15: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/15.jpg)
DWT
Image adapted from [2]
![Page 16: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/16.jpg)
DWT 1 Stage
Image adapted from [2]
![Page 17: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/17.jpg)
DWT 2 Stage
Image adapted from [2]
![Page 18: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/18.jpg)
DWT 5 Stage
Image adapted from [2]
![Page 19: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/19.jpg)
DWT layering
![Page 20: Efficient Scalable Video Compression by Scalable Motion Coding Review and Implementation of DWT Based Approach Syed Jawwad Bukhari 2004-03-0028.](https://reader035.fdocuments.us/reader035/viewer/2022062407/56649d485503460f94a23de4/html5/thumbnails/20.jpg)
References
1. ACCURACY-SCALABLE Motion CODING FOR EFFICIENT SCALABLE VIDEO COMPRESSION; by Boisson ,Edouard & Guillemot
2. H.264 and MPEG-4 Video Compression; by Iain E. G. Richardson,The Robert Gordon University, Aberdeen, UK