Title :
A hybrid technique for stereoscopic depth estimation in video
Author :
Stankiewicz, Olgierd ; Wegner, Krzysztof
Author_Institution :
Dept.of Multimedia Telecommun. & Microelectron., Poznan Univ. of Technol., Poznan
Abstract :
In this paper, a new hybrid technique for the disparity map estimation from a stereo pair of images is proposed. The original concepts of proposal are: use of dual-path disparity estimation, a new hierarchical shape-adaptive block matching, optical flow analysis extended with novel disparity compensation step and improved iteration scheme, novel occlusion detection and disparity extrapolation schemes. The main advantages of this proposal are: low computational complexity, sub-pixel accuracy of depth estimation, operation across flat or untextured regions and good detection of occluded regions.
Keywords :
computer graphics; stereo image processing; video signal processing; computational complexity; disparity compensation step; disparity extrapolation scheme; disparity map estimation; dual-path disparity estimation; image stereo pair; improved iteration scheme; occluded region; occlusion detection; optical flow analysis; shape-adaptive block matching; stereoscopic depth estimation; untextured regions; video; Cameras; Computational complexity; Image motion analysis; Image resolution; Iterative algorithms; Multimedia systems; Proposals; TV; Video sequences; Videoconference; depth estimation; disparity map; occlusion detection; stereoscopic video;
Conference_Titel :
Signals and Electronic Systems, 2008. ICSES '08. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-88309-47-2
Electronic_ISBN :
978-83-88309-52-6
DOI :
10.1109/ICSES.2008.4673394
