Interlaced asymmetric search range assignment for bidirectional motion estimation

Jinjia Zhou, Dajiang Zhou, Satoshi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Bidirectional motion estimation significantly enhances video coding efficiency, but its huge complexity is also a critical problem for implementation. This paper presents an interlaced asymmetric search range assignment (IASRA) algorithm. By applying a large and a small search ranges to two reference directions and switching the assignment of these two search ranges once per macroblock, total complexity for bidirectional motion estimation can be reduced by near half with slight coding efficiency drop. IASRA also has the flexibility to be combined with existing fast algorithms and architectures for further complexity saving. We demonstrate this feature by combining IASRA with the state-of-the-art IMNPDR and PMRME architectures, which results in 33% to 42% complexity reduction with less than 1% bit rate increase.

Original languageEnglish
Title of host publicationProceedings - International Conference on Image Processing, ICIP
Pages1557-1560
Number of pages4
DOIs
Publication statusPublished - 2012
Event2012 19th IEEE International Conference on Image Processing, ICIP 2012 - Lake Buena Vista, FL
Duration: 2012 Sep 302012 Oct 3

Other

Other2012 19th IEEE International Conference on Image Processing, ICIP 2012
CityLake Buena Vista, FL
Period12/9/3012/10/3

Keywords

  • bidirectional prediction
  • motion estimation
  • search range

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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  • Cite this

    Zhou, J., Zhou, D., & Goto, S. (2012). Interlaced asymmetric search range assignment for bidirectional motion estimation. In Proceedings - International Conference on Image Processing, ICIP (pp. 1557-1560). [6467170] https://doi.org/10.1109/ICIP.2012.6467170