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Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/269
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| Title: | A very low bit-rate video coding algorithm by focusing on moving regions |
| Authors: | Wong, Kwok-wai
Lam, Kin-man Kenneth
Siu, Wan-chi |
| Subjects: | Video coding algorithm
DCT coefficients
Motion estimation
Macroblock |
| Issue Date: | 2000 |
| Publisher: | IEEE |
| Citation: | 2000 IEEE International Conference on Multimedia and Expo : ICME2000 : proceedings : 30 July-2 August 2000, New York, NY, USA, p. 983-986 |
| 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. |
| Rights: | © 2000 IEEE. 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 to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| Type: | Conference Paper |
| URI: | http://hdl.handle.net/10397/269 |
| ISBN: | 0780365364 |
| Appears in Collections: | EIE Conference Papers & Presentations
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