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A novel approach for bi-directional motion estimation and compensation

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2 Author(s)
Ahmadianpour, F. ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada ; Ahmad, M.O.

We present a novel bidirectional motion estimation technique, which determines the motion vectors more accurately in situations when there are variations in the inter-frame characteristics due to the changes in the brightness values of the corresponding pixels from frame to frame. The proposed bidirectional motion estimation technique is applied specifically to the fixed-size block, variable-size block and region-wise motion compensation schemes. The proposed method is applied to a number of benchmark video sequences and the results are compared with those obtained by applying the existing methods. These results show that the proposed method can improve the rate-distortion performance. In particular, in situations when there are large variations in the brightness of the corresponding regions from frame to frame, the proposed method improves significantly the rate-distortion performance.

Published in:

Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004. International Conference on  (Volume:2 )

Date of Conference:

5-7 April 2004