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IEEEIAS
2009
IEEE
13 years 11 months ago
Octagonal Search Algorithm with Early Termination for Fast Motion Estimation on H.264
: An adaptive threshold for early termination is proposed in this paper to enhance the cross octagonal search algorithm (COSA)[1]. In block motion estimation, search patterns have ...
Zhaopeng Cui, Dujuan Wang, Guang Jiang, Chengke Wu
ICASSP
2007
IEEE
13 years 6 months ago
Adaptive Multi-Reference Downhill Simplex Search Based on Spatial-Temporal Motion Smoothness Criterion
Multi-reference frame motion estimation improves the accuracy of motion compensation in video coding. However, it also increases computational complexity dramatically. In this pap...
Wei-Hau Pan, Chen-Kuo Chiang, Shang-Hong Lai
WIAMIS
2009
IEEE
13 years 11 months ago
Global motion estimation using variable block sizes and its application to object segmentation
Global motion is estimated either in the pixel domain or in block based domain. Until now, all the approaches regarding the latter are based on fixed sized blocks while the recent...
Marina Georgia Arvanitidou, Alexander Glantz, Andr...
ICIP
2003
IEEE
14 years 6 months ago
Video coding using a deformation compensation algorithm based on adaptive matching pursuit image decompositions
Today's video codecs employ motion compensated prediction in combination with block matching techniques. These techniques, although achieving some level of adaptivity in thei...
Òscar Divorra Escoda, Pierre Vandergheynst
ICIP
1998
IEEE
14 years 6 months ago
Adaptive Search Center Non-Linear Three Step Search
This paper presents a new motion estimation algorithm using an adaptive search center predicted from its adjacent blocks, and a non-linear center biased search point pattern. It d...
Hing Y. Chung, Paul Y. S. Cheung, N. H. C. Yung