DocumentCode :
560363
Title :
A triangular-warping based view synthesis scheme with enhanced artifact reduction for FTV
Author :
Li, Chao-Hsuan ; Tsai, Jang-Jer ; Hang, Hsueh-Ming
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear :
2011
fDate :
11-14 Sept. 2011
Firstpage :
1969
Lastpage :
1972
Abstract :
View synthesis is one key enabling technology for free-viewpoint television (FTV). It uses multiple image frames and depth maps to generate the intermediate view at nearly any arbitrary viewpoint. In our proposed 2-stage algorithm, we adopt triangular warping with a new feature point extraction scheme for the first texture mapping stage. The new feature point extraction scheme uses the correlation between the image luminance gradients and the depth map. In the second stage, we use the median filtering and the multi-band blending technique to reduce the artifacts on the image object boundaries caused by the discontinuity and the imperfection of depth maps. Experimental results show that our proposed method produces better visual quality in comparison with a latest view synthesis algorithm.
Keywords :
digital television; feature extraction; image texture; median filters; FTV; artifact reduction; depth map; feature point extraction; free-viewpoint television; image luminance gradient; image object boundary; median filtering; multiband blending technique; multiple image frames; texture mapping; triangular-warping; view synthesis scheme; Conferences; Feature extraction; Filtering; Poles and towers; Reliability; Three dimensional displays; Visualization; Correlation of the gradients; Free-viewpoint TV (FTV); Median Filtering; Multi-band blending; Triangular warping;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing (ICIP), 2011 18th IEEE International Conference on
Conference_Location :
Brussels
ISSN :
1522-4880
Print_ISBN :
978-1-4577-1304-0
Electronic_ISBN :
1522-4880
Type :
conf
DOI :
10.1109/ICIP.2011.6115859
Filename :
6115859
Link To Document :
بازگشت