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Dual-layer approach for improved mesh-based motion compensation
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Yu, Andy C., Park, Heechan and Martin, Graham R. (2007) Dual-layer approach for improved mesh-based motion compensation. IET Image Processing, Vol.1 (No.4). pp. 343-351. doi:10.1049/iet-ipr:20060322 ISSN 1751-9659.
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Official URL: http://dx.doi.org/10.1049/iet-ipr:20060322
Abstract
A dual-layer algorithm for mesh-based motion compensation is described. The technique utilises meshes at different scales and aims to improve the rate-distortion performance at fixed bit rates. The proposed algorithm identifies motion-active regions in the picture without the need for time-consuming, evaluation. By enhancing the mesh structure in the motion-active regions, a significant improvement in motion estimation is obtained. Furthermore, a scheme to construct two different significance maps, at both encoder and decoder, provides a reduction in transmission overhead. A block-wise motion information coding approach is proposed, permitting a group of static grid points to be represented by a one-bit codeword. Simulations are reported for a wide range of test sequences possessing different degrees of motion activity. The results demonstrate that the proposed algorithm achieves a better PSNR-rate performance compared with conventional mesh-based motion compensation methods.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Journal or Publication Title: | IET Image Processing | ||||
Publisher: | The Institution of Engineering and Technology | ||||
ISSN: | 1751-9659 | ||||
Official Date: | December 2007 | ||||
Dates: |
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Volume: | Vol.1 | ||||
Number: | No.4 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 343-351 | ||||
DOI: | 10.1049/iet-ipr:20060322 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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