计算机应用研究2011，Vol.28Issue(8)：3131-3133,3144,4.DOI:10.3969/j.issn.1001-3695.2011.08.092
基于RDWT与改进SIFT的DT网格运动估计与补偿
Delaunay triangulation mesh-based motion estimation and compensation based onredundant discrete wavelet transformation and improved SIFT algorithm
摘要
Abstract
To ulteriorly improve the effect of motion estimation and compensation, this paper proposed a delaunay triangulation mesh-based motion estimation algorithm based on redundant discrete wavelet transformation(RDWT) and improved SIFT algorithm. First,it extracted the potential motion area (PMA) and designed a adaptive template for feature points extracting in RDWT domain. Then proposed an improved SIFT algorithm. It could extract and match the feature points fast and accurately and generate DT mesh. Finally, a delaunay mesh-based motion estimation and compensation was done in PMA by the affine transform. The result of experiment indicates that this method can quickly and efficiently extract stable feature points of video image. It can maintain a higher peak signal to noise ratio( PSNR) and improve motion estimation efficiency, and the subjective quality of image is good. This approach has some performance in PSNR and efficiency compared with the existing irregular triangular mesh-based motion estimation algorithm.关键词
冗余离散小波变换/改进SIFT/DT网格/运动估计与补偿Key words
redundant discrete wavelet transformation/ improved SIFT/ delaunay triangulation mesh/ motion estimation and compensation分类
计算机与自动化引用本文复制引用
谢洪途,罗旗舞,高广珠,汪良会..基于RDWT与改进SIFT的DT网格运动估计与补偿[J].计算机应用研究,2011,28(8):3131-3133,3144,4.基金项目
国家发展基金资助项目(3100040188002) （3100040188002）
