DocumentCode :
1533395
Title :
An Asymmetric Edge Adaptive Filter for Depth Generation and Hole Filling in 3DTV
Author :
Wang, Liang-Hao ; Huang, Xiao-Jun ; Xi, Ming ; Li, Dong-Xiao ; Zhang, Ming
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
Volume :
56
Issue :
3
fYear :
2010
Firstpage :
425
Lastpage :
431
Abstract :
An asymmetric edge adaptive filter (AEAF) is proposed in this paper to partially solve two puzzles in 3DTV, i.e. depth generation and hole filling. Different from other similar processing methods, one time of AEAF operation can simultaneously achieve the effect of edge correction and pre-processing of the depth maps. Thus the computing complexity can be greatly reduced. On the one hand, based on the initial depth map obtained by simple algorithms, AEAF can achieve depth maps with comparatively accurate object edges, avoiding high computation after the introduction of depth generation method based on image and video segmentation. On the other hand, AEAF can reduce the area of holes in rendered views via asymmetric smoothing of depth maps, promising an improvement in the image quality with reduced artifacts and distortions. Experiment results in the applications of 2D-to-3D conversion and stereo matching show that a balance point is found by AEAF between the two aspects of the contradiction.
Keywords :
adaptive filters; edge detection; image matching; image segmentation; stereo image processing; three-dimensional television; video signal processing; 2D-to-3D conversion; 3DTV; AEAF operation; asymmetric edge adaptive filter; asymmetric smoothing; computing complexity; depth generation; depth map preprocessing; edge correction; hole filling; image quality; image segmentation; object edge; rendered view; stereo matching; video segmentation; Adaptive filters; Bandwidth; Bit rate; Cameras; Consumer electronics; Costs; Filling; Image segmentation; Three dimensional displays; Video compression; 3DTV; DIBR; depth; hole filling;
fLanguage :
English
Journal_Title :
Broadcasting, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9316
Type :
jour
DOI :
10.1109/TBC.2010.2053971
Filename :
5508371
Link To Document :
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