Coarse to fine adaptive interpolation filter for high resolution video coding

Jia Su*, Yiqing Huang, Lei Sun, Shinichi Sakaida, Takeshi Ikenaga

*この研究の対応する著者

研究成果: Conference contribution

抄録

With the increasing demand of high video quality and large image size, adaptive interpolation filter (AIF) addresses these issues and conquers the time varying effects resulting in increased coding efficiency, comparing with recent H.264 standard. However, currently most AIF algorithms are based on either frame level or macroblock (MB) level, which are not flexible enough for different video contents in a real codec system. And most of them are facing a severe time consuming problem. This paper proposes a content based coarse to fine AIF algorithm, which can adapt to video contents by adding different filters and conditions from coarse to fine. The overall algorithm has been mainly made up by 3 schemes: frequency analysis based frame level skip interpolation, motion vector modeling based region level interpolation, and edge detection based macroblock level interpolation. The experimental results show that the proposed algorithm is able to reduce total encoding time about 41% for 720p and 25% for 1080p sequences averagely, comparing with key technology areas (KTA) Enhanced AIF algorithm, while obtains a BD-PSNR gain up to 0.004 and 3.122 BDBR reduction.

本文言語English
ホスト出版物のタイトルElectronic Proceedings of the 2011 IEEE International Conference on Multimedia and Expo, ICME 2011
DOI
出版ステータスPublished - 2011 11 7
イベント2011 12th IEEE International Conference on Multimedia and Expo, ICME 2011 - Barcelona, Spain
継続期間: 2011 7 112011 7 15

出版物シリーズ

名前Proceedings - IEEE International Conference on Multimedia and Expo
ISSN(印刷版)1945-7871
ISSN(電子版)1945-788X

Other

Other2011 12th IEEE International Conference on Multimedia and Expo, ICME 2011
国/地域Spain
CityBarcelona
Period11/7/1111/7/15

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用

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