Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations
<p/> <p>Distributed video coding (DVC) is a video coding paradigm allowing low complexity encoding for emerging applications such as wireless video surveillance. Side information (SI) generation is a key function in the DVC decoder, and plays a key-role in determining the performance of...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
|
| Series: | EURASIP Journal on Image and Video Processing |
| Online Access: | http://jivp.eurasipjournals.com/content/2009/683510 |
| _version_ | 1811269551354019840 |
|---|---|
| author | Ye Shuiming Ouaret Mourad Dufaux Frederic Ebrahimi Touradj |
| author_facet | Ye Shuiming Ouaret Mourad Dufaux Frederic Ebrahimi Touradj |
| author_sort | Ye Shuiming |
| collection | DOAJ |
| description | <p/> <p>Distributed video coding (DVC) is a video coding paradigm allowing low complexity encoding for emerging applications such as wireless video surveillance. Side information (SI) generation is a key function in the DVC decoder, and plays a key-role in determining the performance of the codec. This paper proposes an improved SI generation for DVC, which exploits both spatial and temporal correlations in the sequences. Partially decoded Wyner-Ziv (WZ) frames, based on initial SI by motion compensated temporal interpolation, are exploited to improve the performance of the whole SI generation. More specifically, an enhanced temporal frame interpolation is proposed, including motion vector refinement and smoothing, optimal compensation mode selection, and a new matching criterion for motion estimation. The improved SI technique is also applied to a new hybrid spatial and temporal error concealment scheme to conceal errors in WZ frames. Simulation results show that the proposed scheme can achieve up to 1.0 dB improvement in rate distortion performance in WZ frames for video with high motion, when compared to state-of-the-art DVC. In addition, both the objective and perceptual qualities of the corrupted sequences are significantly improved by the proposed hybrid error concealment scheme, outperforming both spatial and temporal concealments alone.</p> |
| first_indexed | 2024-04-12T21:45:15Z |
| format | Article |
| id | doaj.art-1d091329171f4d95877eb1f83c5e2a9f |
| institution | Directory Open Access Journal |
| issn | 1687-5176 1687-5281 |
| language | English |
| last_indexed | 2024-04-12T21:45:15Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Image and Video Processing |
| spelling | doaj.art-1d091329171f4d95877eb1f83c5e2a9f2022-12-22T03:15:40ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-51761687-52812009-01-0120091683510Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal CorrelationsYe ShuimingOuaret MouradDufaux FredericEbrahimi Touradj<p/> <p>Distributed video coding (DVC) is a video coding paradigm allowing low complexity encoding for emerging applications such as wireless video surveillance. Side information (SI) generation is a key function in the DVC decoder, and plays a key-role in determining the performance of the codec. This paper proposes an improved SI generation for DVC, which exploits both spatial and temporal correlations in the sequences. Partially decoded Wyner-Ziv (WZ) frames, based on initial SI by motion compensated temporal interpolation, are exploited to improve the performance of the whole SI generation. More specifically, an enhanced temporal frame interpolation is proposed, including motion vector refinement and smoothing, optimal compensation mode selection, and a new matching criterion for motion estimation. The improved SI technique is also applied to a new hybrid spatial and temporal error concealment scheme to conceal errors in WZ frames. Simulation results show that the proposed scheme can achieve up to 1.0 dB improvement in rate distortion performance in WZ frames for video with high motion, when compared to state-of-the-art DVC. In addition, both the objective and perceptual qualities of the corrupted sequences are significantly improved by the proposed hybrid error concealment scheme, outperforming both spatial and temporal concealments alone.</p>http://jivp.eurasipjournals.com/content/2009/683510 |
| spellingShingle | Ye Shuiming Ouaret Mourad Dufaux Frederic Ebrahimi Touradj Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations EURASIP Journal on Image and Video Processing |
| title | Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations |
| title_full | Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations |
| title_fullStr | Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations |
| title_full_unstemmed | Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations |
| title_short | Improved Side Information Generation for Distributed Video Coding by Exploiting Spatial and Temporal Correlations |
| title_sort | improved side information generation for distributed video coding by exploiting spatial and temporal correlations |
| url | http://jivp.eurasipjournals.com/content/2009/683510 |
| work_keys_str_mv | AT yeshuiming improvedsideinformationgenerationfordistributedvideocodingbyexploitingspatialandtemporalcorrelations AT ouaretmourad improvedsideinformationgenerationfordistributedvideocodingbyexploitingspatialandtemporalcorrelations AT dufauxfrederic improvedsideinformationgenerationfordistributedvideocodingbyexploitingspatialandtemporalcorrelations AT ebrahimitouradj improvedsideinformationgenerationfordistributedvideocodingbyexploitingspatialandtemporalcorrelations |