Title :
Edge-preserving regularization of disparity and motion fields
Author :
Yang, Wenxian ; Ngan, King N. ; Lim, Jeongeun ; Sohn, Kwanghoon
Author_Institution :
Sch. of Comput. Eng., Nanyang Technol. Univ., Singapore
Abstract :
This paper describes a procedure for edge-preserving regularization of displacement fields. Initial displacement fields are regularized using a cost function that considers a smoothness term. Edge values are used as the weights in the smoothness term so that the discontinuities at edges are well preserved. The regularization technique is tested for both block-based and pixel-based cases for one-dimensional disparity fields and two-dimensional motion fields. The performance of our proposed algorithm is evaluated in aspects of entropy and distortion.
Keywords :
entropy; image resolution; motion estimation; smoothing methods; stereo image processing; block-based case; cost function; disparity estimation; displacement fields; distortion; edge discontinuities; edge values; edge-preserving regularization; entropy; image processing; image resolution; motion estimation; one-dimensional disparity fields; pixel-based case; second derivative smoothing; simulation; smoothness term; two-dimensional motion fields; Cameras; Computational complexity; Cost function; Image reconstruction; Image segmentation; Motion estimation; Stochastic processes; Testing; Video sequences; Virtual reality;
Conference_Titel :
Video/Image Processing and Multimedia Communications, 2003. 4th EURASIP Conference focused on
Print_ISBN :
953-184-054-7
DOI :
10.1109/VIPMC.2003.1220441