Video object extraction is a key technology in content-based video coding.A novel video object extracting algorithm by two Dimensional (2-D) mesh-based motion analysis is proposed in this paper.Firstly,a 2-D mesh fitt...Video object extraction is a key technology in content-based video coding.A novel video object extracting algorithm by two Dimensional (2-D) mesh-based motion analysis is proposed in this paper.Firstly,a 2-D mesh fitting the original frame image is obtained via feature detection algorithm. Then,higher order statistics motion analysis is applied on the 2-D mesh representation to get an initial motion detection mask.After post-processing,the final segmenting mask is quickly obtained.And hence the video object is effectively extracted.Experimental results show that the proposed algorithm combines the merits of mesh-based segmenting algorithms and pixel-based segmenting algorithms,and hereby achieves satisfactory subjective and objective performance while dramatically increasing the segmenting speed.展开更多
By begiwhng with the Cannon algorithm[1] and the double- direct ion dat amoving algoritlun[2] for processors arranged as a 2-D square mesh, we improvethese two algorithms to general 2-D mesh in this paper. We also con...By begiwhng with the Cannon algorithm[1] and the double- direct ion dat amoving algoritlun[2] for processors arranged as a 2-D square mesh, we improvethese two algorithms to general 2-D mesh in this paper. We also consider theapplication of our algorithms in those operations which are similar to matrix multiplication. Using MPI parallel programming environment, we have obtained satisfactory performance on Dawning-1000.展开更多
基金Supported by the National Natural Science Foundation of China (No.60672094).
文摘Video object extraction is a key technology in content-based video coding.A novel video object extracting algorithm by two Dimensional (2-D) mesh-based motion analysis is proposed in this paper.Firstly,a 2-D mesh fitting the original frame image is obtained via feature detection algorithm. Then,higher order statistics motion analysis is applied on the 2-D mesh representation to get an initial motion detection mask.After post-processing,the final segmenting mask is quickly obtained.And hence the video object is effectively extracted.Experimental results show that the proposed algorithm combines the merits of mesh-based segmenting algorithms and pixel-based segmenting algorithms,and hereby achieves satisfactory subjective and objective performance while dramatically increasing the segmenting speed.
文摘By begiwhng with the Cannon algorithm[1] and the double- direct ion dat amoving algoritlun[2] for processors arranged as a 2-D square mesh, we improvethese two algorithms to general 2-D mesh in this paper. We also consider theapplication of our algorithms in those operations which are similar to matrix multiplication. Using MPI parallel programming environment, we have obtained satisfactory performance on Dawning-1000.
