Title :
The recovery of a near optimal layer representation for an entire image sequence
Author :
Elias, D.P. ; Kingsbury, N.S.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
Wang and Adelson see (IEEE Trans. Image Proc., vol.3, no.5, p.625-38, 1994) proposed the layer representation as a convenient representation for video coding, format conversion and special effects. We present a technique to extract the near optimal layer representation of an image sequence using the EM algorithm. We incorporate forward/backward motion estimation to obtain a sharp segmentation in the presence of occlusion and uncovering. We demonstrate that the algorithm is capable of tracking layers within a sequence, and detecting when layers enter or leave the sequence
Keywords :
image representation; image segmentation; image sequences; maximum likelihood estimation; motion estimation; video coding; EM algorithm; format conversion; forward/backward motion estimation; image sequence; maximum likelihood solution; near optimal layer representation; occlusion; segmentation; special effects; uncovering; video coding; Clustering algorithms; Data mining; Image segmentation; Image sequences; Layout; Motion estimation; Predictive models; Video coding;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.648055
