Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding
<p/> <p>Distributed video coding (DVC) is a new paradigm for video compression based on the information theoretical results of Slepian and Wolf (SW) and Wyner and Ziv (WZ). DVC entails low-complexity encoders as well as separate encoding of correlated video sources. This is particularly...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Image and Video Processing |
| Online Access: | http://jivp.eurasipjournals.com/content/2009/591915 |
| _version_ | 1818296093707862016 |
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| author | Ouaret Mourad Dufaux Frédéric Ebrahimi Touradj |
| author_facet | Ouaret Mourad Dufaux Frédéric Ebrahimi Touradj |
| author_sort | Ouaret Mourad |
| collection | DOAJ |
| description | <p/> <p>Distributed video coding (DVC) is a new paradigm for video compression based on the information theoretical results of Slepian and Wolf (SW) and Wyner and Ziv (WZ). DVC entails low-complexity encoders as well as separate encoding of correlated video sources. This is particularly attractive for multiview camera systems in video surveillance and camera sensor network applications, where low complexity is required at the encoder. In addition, the separate encoding of the sources implies no communication between the cameras in a practical scenario. This is an advantage since communication is time and power consuming and requires complex networking. In this work, different intercamera estimation techniques for side information (SI) generation are explored and compared in terms of estimating quality, complexity, and rate distortion (RD) performance. Further, a technique called iterative multiview side information (IMSI) is introduced, where the final SI is used in an iterative reconstruction process. The simulation results show that IMSI significantly improves the RD performance for video with significant motion and activity. Furthermore, DVC outperforms AVC/H.264 Intra for video with average and low motion but it is still inferior to the Inter No Motion and Inter Motion modes.</p> |
| first_indexed | 2024-12-13T03:58:04Z |
| format | Article |
| id | doaj.art-f70bfb1e968846c48deb817db38966a6 |
| institution | Directory Open Access Journal |
| issn | 1687-5176 1687-5281 |
| language | English |
| last_indexed | 2024-12-13T03:58:04Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Image and Video Processing |
| spelling | doaj.art-f70bfb1e968846c48deb817db38966a62022-12-22T00:00:33ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-51761687-52812009-01-0120091591915Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video CodingOuaret MouradDufaux FrédéricEbrahimi Touradj<p/> <p>Distributed video coding (DVC) is a new paradigm for video compression based on the information theoretical results of Slepian and Wolf (SW) and Wyner and Ziv (WZ). DVC entails low-complexity encoders as well as separate encoding of correlated video sources. This is particularly attractive for multiview camera systems in video surveillance and camera sensor network applications, where low complexity is required at the encoder. In addition, the separate encoding of the sources implies no communication between the cameras in a practical scenario. This is an advantage since communication is time and power consuming and requires complex networking. In this work, different intercamera estimation techniques for side information (SI) generation are explored and compared in terms of estimating quality, complexity, and rate distortion (RD) performance. Further, a technique called iterative multiview side information (IMSI) is introduced, where the final SI is used in an iterative reconstruction process. The simulation results show that IMSI significantly improves the RD performance for video with significant motion and activity. Furthermore, DVC outperforms AVC/H.264 Intra for video with average and low motion but it is still inferior to the Inter No Motion and Inter Motion modes.</p>http://jivp.eurasipjournals.com/content/2009/591915 |
| spellingShingle | Ouaret Mourad Dufaux Frédéric Ebrahimi Touradj Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding EURASIP Journal on Image and Video Processing |
| title | Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding |
| title_full | Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding |
| title_fullStr | Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding |
| title_full_unstemmed | Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding |
| title_short | Iterative Multiview Side Information for Enhanced Reconstruction in Distributed Video Coding |
| title_sort | iterative multiview side information for enhanced reconstruction in distributed video coding |
| url | http://jivp.eurasipjournals.com/content/2009/591915 |
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