Title :
A motion field reconstruction scheme for smooth boundary video object segmentation
Author :
Gao, Jean ; Thakoor, Ninad ; Jung, Sungyong
Author_Institution :
Comput. Sci. & Eng. Dept., Texas Univ., Arlington, TX, USA
Abstract :
Motion segmentation is a classic and on-going research topic which is an important pre-stage for many video processes. The reliability of the motion field calculation directly determines either success or failure of such segmentation. Due to the aperture property of optical flow calculation, motion estimation at a moving object boundary remains a challenging ill-posed problem. We propose a reliable optical-flow estimation method from the view of missing data reconstruction. Furthermore, to overcome the occlusion problem at motion boundaries, we apply a motion segmentation scheme which integrates with spatial segmentation. Experimental results of the proposed and other methods are presented.
Keywords :
image reconstruction; image segmentation; image sequences; motion estimation; parameter estimation; reliability; video signal processing; ill-posed problem; missing data reconstruction; motion estimation; motion field reconstruction; motion segmentation; occlusion problem; optical flow calculation; smooth boundary video object segmentation; spatial segmentation; video processing; Algorithm design and analysis; Apertures; Clustering algorithms; Computer science; Computer vision; Image motion analysis; Motion estimation; Motion segmentation; Object segmentation; Video compression;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1418770