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DCT based interpolation filter for motion compensation in HEVC
- Authors
- Alshin, A.; Alshina, E.; Park, JeongHoon; Han, Woo-Jin
- Issue Date
- Oct-2012
- Publisher
- SPIE-INT SOC OPTICAL ENGINEERING
- Keywords
- Fractional pel; High Efficiency Video Coding (HEVC); Interpolation; Motion compensation; Video compression
- Citation
- Proceedings of SPIE - The International Society for Optical Engineering, v.8499
- Volume
- 8499
- ISSN
- 0277-786X
- Abstract
- High Efficiency Video Coding (HEVC) draft standard has a challenging goal to improve coding efficiency twice compare to H.264/AVC. Many aspects of the traditional hybrid coding framework were improved during new standard development. Motion compensated prediction, in particular the interpolation filter, is one area that was improved significantly over H.264/AVC. This paper presents the details of the interpolation filter design of the draft HEVC standard. The coding efficiency improvements over H.264/AVC interpolation filter is studied and experimental results are presented, which show a 4.0% average bitrate reduction for Luma component and 11.3% average bitrate reduction for Chroma component. The coding efficiency gains are significant for some video sequences and can reach up 21.7%. © 2012 SPIE.
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