A hardware-oriented high precision motion vector prediction scheme for MPEG-2 to H.264 transcoding

Xianghui Wei, Wenming Tang, Guifen Tian, Takeshi Ikenaga, Satoshi Goto

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

1 Citation (Scopus)

Abstract

In hardware design of MPEG-2 to H.264 transcoder, MPEG-2 motion vector (MV) is often reused as search center to reduce the search range for H.264 motion estimation (ME) module. But MPEG-2 MV is not always accurate search center. The common-used comparison algorithm for motion vector predictor (MVP) is hardly implemented in hardware. In this paper, we propose a MV prediction algorithm for hardware design based on smoothness of MPEG-2 MV field. Experiment results show that the proposed MV prediction method with a small search range can approach the performance of full search algorithm with a large search range. Using the proposed algorithm, the motion prediction accuracy is significantly improved compared with the method only using MPEG-2 MV, especially in sequence with fast motion and complicate background.

Original languageEnglish
Title of host publicationProceedings - 1st International Congress on Image and Signal Processing, CISP 2008
Pages278-282
Number of pages5
Volume1
DOIs
Publication statusPublished - 2008
Event1st International Congress on Image and Signal Processing, CISP 2008 - Sanya, Hainan
Duration: 2008 May 272008 May 30

Other

Other1st International Congress on Image and Signal Processing, CISP 2008
CitySanya, Hainan
Period08/5/2708/5/30

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ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing

Cite this

Wei, X., Tang, W., Tian, G., Ikenaga, T., & Goto, S. (2008). A hardware-oriented high precision motion vector prediction scheme for MPEG-2 to H.264 transcoding. In Proceedings - 1st International Congress on Image and Signal Processing, CISP 2008 (Vol. 1, pp. 278-282). [4566163] https://doi.org/10.1109/CISP.2008.775