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Mesh-based motion estimation and compensation in the wavelet domain using a redundant transform

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3 Author(s)
Suxia Cui ; Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA ; Yonghui Wang ; Fowler, J.E.

A technique is presented that incorporates an irregular triangle mesh into wavelet-domain motion-estimation and motion-compensation using a shift-invariant redundant wavelet transform. Triangle vertices are identified by a simple correlation operator locating image edges in the wavelet subbands, while motion compensation takes place through an affine transformation mapping triangles from one frame to the next. The motion-compensated residual is downsampled to a non-redundant form which is then coded using any wavelet-based still-image coder. Experimental results indicate that the combined approach outperforms either technique applied separately,, in addition, the proposed method outperforms a variety of motion-estimation and motion-compensation approaches operating in both the spatial and wavelet domains.

Published in:

Image Processing. 2002. Proceedings. 2002 International Conference on  (Volume:1 )

Date of Conference:

2002

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