Dual-layer approach for improved mesh-based motion compensation
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. ISSN 1751-9659Full text not available from this repository.
Official URL: http://dx.doi.org/10.1049/iet-ipr:20060322
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|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Divisions:||Faculty of Science > Computer Science|
|Journal or Publication Title:||IET Image Processing|
|Publisher:||The Institution of Engineering and Technology|
|Official Date:||December 2007|
|Number of Pages:||9|
|Page Range:||pp. 343-351|
|Access rights to Published version:||Restricted or Subscription Access|
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