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Error-concealment algorithm for H.26L using first-order plane estimation

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2 Author(s)
Jinghong Zheng ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Chau, L.-P.

In this paper, we propose a new error-concealment algorithm for the forthcoming video coding standard H.26L, which makes use of a first-order plane to estimate motion vectors. In H.26L, a 16×16 inter macroblok can be divided into variant block shape for motion prediction, and there are up to sixteen sets of motion vector in one macroblock. For nature image, the motions within a small area are likely to move in the same direction. By using the motion vectors that are next to the vertices of lost macroblock, we can constitute a first-order plane that indicates the movement tendency in this small area, and estimate the motion vector of vertices. Then we use the motion vectors of vertices to interpolate motion vector for each pixel separately. The interpolation function we selected makes the motion change smoothly within the lost macroblock. The simulation results show that our method can efficiently improve the video quality over different macroblock lost rate.

Published in:

Multimedia, IEEE Transactions on  (Volume:6 ,  Issue: 6 )

Date of Publication:

Dec. 2004

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