Title :
A novel moving object segmentation algorithm based on spatiotemporal Markov random field
Author :
Huang, Xianwu ; Zhong, Xingrong ; Wang, Jiajun ; Zhu, Li ; Liu, Jinsheng
Author_Institution :
Sch. of Electron. & Inf. Eng., Soochow Univ., Suzhou, China
Abstract :
In the field of image processing, the segmentation of moving object in video sequences has attracted much interest in recent years. In this paper, a novel method of moving object segmentation based on spatio-temporal Markov random field is proposed. In this method, two initial label fields are firstly derived from the three successive images, after which the uniform label is obtained after the AND-operation on the two initial labels. Finally, the optimized labels are obtained with the maximum a posteriori method where the color clustered image of the original image is used as priors. The new MRF model contributes to the weakening of the noise and to the elimination of the covered-uncovered background and to the recovery of the uniform moving regions.
Keywords :
Markov processes; image colour analysis; image motion analysis; image segmentation; maximum likelihood estimation; color clustered image; maximum a posteriori method; moving object segmentation algorithm; spatiotemporal Markov random field; video sequences; Background noise; Colored noise; Image processing; Image segmentation; Markov random fields; Maximum a posteriori estimation; Object segmentation; Optimization methods; Spatiotemporal phenomena; Video sequences;
Conference_Titel :
VLSI Design and Video Technology, 2005. Proceedings of 2005 IEEE International Workshop on
Print_ISBN :
0-7803-9005-9
DOI :
10.1109/IWVDVT.2005.1504615