Ebook: Motion Estimation Algorithms for Video Compression
- Genre: Computers // Organization and Data Processing
- Tags: Multimedia Information Systems, Electrical Engineering, Signal Image and Speech Processing, Computer Science general
- Series: The Springer International Series in Engineering and Computer Science 379
- Year: 1997
- Publisher: Springer US
- Edition: 1
- Language: English
- pdf
Video technology promises to be the key for the transmission of motion video. A number of video compression techniques and standards have been introduced in the past few years, particularly the MPEG-1 and MPEG-2 for interactive multimedia and for digital NTSC and HDTV applications, and H.2611H.263 for video telecommunications. These techniques use motion estimation techniques to reduce the amount of data that is stored and transmitted for each frame. This book is about these motion estimation algorithms, their complexity, implementations, advantages, and drawbacks. First, we present an overview of video compression techniques with an emphasis to techniques that use motion estimation, such as MPEG and H.2611H.263. Then, we give a survey of current motion estimation search algorithms, including the exhaustive search and a number of fast search algorithms. An evaluation of current search algorithms, based on a number of experiments on several test video sequences, is presented as well. The theoretical framework for a new fast search algorithm, Densely-Centered Uniform-P Search (DCUPS), is developed and presented in the book. The complexity of the DCUPS algorithm is comparable to other popular motion estimation techniques, however the algorithm shows superior results in terms of compression ratios and video qUality. We should stress out that these new results, presented in Chapters 4 and 5, have been developed by Joshua Greenberg, as part of his M.Sc. thesis entitled "Densely-Centered Uniform P-Search: A Fast Motion Estimation Algorithm" (FAU, 1996).
Content:
Front Matter....Pages i-vii
The Problem of Video Compression....Pages 1-11
Video Compression Techniques....Pages 13-47
Motion Compensation and Estimation....Pages 49-81
Experiments on Current Motion Estimation Techniques....Pages 83-103
The Motion Compensation Hypothesis....Pages 105-126
Fast Search Algorithms: New Results....Pages 127-152
Conclusions and Research Directions....Pages 153-156
Back Matter....Pages 157-164
Content:
Front Matter....Pages i-vii
The Problem of Video Compression....Pages 1-11
Video Compression Techniques....Pages 13-47
Motion Compensation and Estimation....Pages 49-81
Experiments on Current Motion Estimation Techniques....Pages 83-103
The Motion Compensation Hypothesis....Pages 105-126
Fast Search Algorithms: New Results....Pages 127-152
Conclusions and Research Directions....Pages 153-156
Back Matter....Pages 157-164
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