Title :
A fast isointensity maps based approach to optimal motion field computation for MPEG coding
Author :
Darwish, Tarek ; Seetharam, Guna ; Bayoumi, Magdy
Author_Institution :
Center for Adv. Comput. Studies, Univ. of Louisiana, Lafayette, LA
Abstract :
Given a video sequence characterized by correlations in space and time, the objective of motion estimation is to find and accurately represent such correlations. Block matching algorithms are mainly used as the core of the motion estimation unit. Search algorithms include FSBMA, TSSMA, logarithmic etc.. At least 3 isointensity centroids in two frames are required to compute 2-D affine motion. Access to up to 8 isointensity centroids allow for two independent affine motions. Virtual displacement method is used to form linear constraints
Keywords :
image coding; image matching; image representation; image resolution; image sequences; motion estimation; search problems; 2D affine motion computation; MPEG coding; block matching algorithm; correlation representation; isointensity map based approach; motion estimation; optimal motion field computation; search algorithm; video sequence; virtual displacement method; Virtual colonoscopy; World Wide Web;
Conference_Titel :
Computer Architectures for Machine Perception, 2003 IEEE International Workshop on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-7970-5
DOI :
10.1109/CAMP.2003.1598173
