A very low bit-rate video coding algorithm by focusing moving regions

K. W. Wong, Kin Man Lam, W. C. Siu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Block-based motion estimation and compensation are the most popular techniques for video coding. As the shape and the structure of an object in a picture are arbitrary, the performance of such conventional block-based methods may not be satisfactory. In this paper, a very low bit-rate video coding algorithm by focussing on moving regions is proposed. The objective is to improve the coding performance, which gives better subjective and objective quality than that of the conventional coding methods at the same bit rate. We predefined eight patterns to represent the moving regions in a macroblock. The patterns are then used for motion estimation and compensation to reduce the prediction errors. Furthermore, in order to increase the compression performance, the residual errors of a macroblock are rearranged into a block with no significant increase of high order DCT coefficients. As a result, both the prediction efficiency and the compression efficiency are improved.
Original languageEnglish
Title of host publicationIEEE International Conference on Multi-Media and Expo
Pages983-986
Number of pages4
Publication statusPublished - 1 Dec 2000
Event2000 IEEE International Conference on Multimedia and Expo (ICME 2000) - New York, NY, United States
Duration: 30 Jul 20002 Aug 2000

Conference

Conference2000 IEEE International Conference on Multimedia and Expo (ICME 2000)
Country/TerritoryUnited States
CityNew York, NY
Period30/07/002/08/00

ASJC Scopus subject areas

  • Engineering(all)

Cite this