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Technical Program
Paper Detail
| Paper: | MP-P3.4 |
| Session: | Transcoding |
| Time: | Monday, October 9, 14:20 - 17:00 |
| Presentation: |
Poster
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| Title: |
MODE REFINEMENT ALGORITHM FOR H.264 INTER FRAME REQUANTIZATION |
| Authors: |
Damien Lefol; University of Bristol | | | | | David R. Bull; University of Bristol | | |
| Abstract: |
The latest video coding standard H.264 has been recently approved and has already been adopted for numerous applications including HD-DVD and satellite broadcast. To allow interconnectivity between different applications using H.264, transcoding will be a key factor. When requantizing a bitstream the incoming coding decisions are usually kept unchanged to reduce the complexity, but it can have a major impact on the coding efficiency. This paper proposes a novel algorithm for mode refinement of inter prediction in the case of requantization of H.264 bitstreams. The proposed approach gives a comparable quality to a full search for a fraction of its complexity by exploiting the statistical properties of the mode distribution and motion vector refinement. |
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