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Mode refinement algorithm for H.264 inter frame requantization

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

Original languageEnglish
Title of host publication2006 IEEE International Conference on Image Processing, Atlanta, GA, United States
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages845 - 848
Number of pages4
ISBN (Print)1424404819, 1424404800
StatePublished - Oct 2006
EventInternational Conference on Image Processing - Atlanta, United States

Publication series

ISSN (Print)15224880


ConferenceInternational Conference on Image Processing
CountryUnited States
Period1/10/06 → …


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

Additional information

Rose publication type: Conference contribution Sponsorship: This work is funded by 3CRL ROAM4G Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE International Conference on Image Processing, 2006. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

    Research areas

  • video signal processing, video codecs


International Conference on Image Processing

Duration1 Oct 2006 → …
CountryUnited States

Event: Conference

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