NDLI: Depth-aided exemplar-based hole filling for DIBR view synthesis

Content Provider	IEEE Xplore Digital Library
Author	Xuyuan Xu Lai-Man Po Chun-Ho Cheung Litong Feng Ka-Ho Ng Kwok-Wai Cheung
Copyright Year	2013
Description	Author affiliation: Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China (Xuyuan Xu; Lai-Man Po; Litong Feng; Ka-Ho Ng) \|\| Dept. of Inf. Syst., City Univ. of Hong Kong, Hong Kong, China (Chun-Ho Cheung) \|\| Dept. of Comput. Sci., Chu Hai Coll. of Higher Educ., Hong Kong, China (Kwok-Wai Cheung)
Abstract	Quality of synthesized view by Depth-Image-Based Rendering (DIBR) highly depends on hole filling, especially for synthesized view with large disocclusion. Many hole filling methods are proposed to improve the synthesized view quality and inpainting is the most popular approach to recover the disocclusions. However, the conventional inpainting either makes the hole regions blurred via diffusion or propagates the foreground information to the disoclusion regions. Annoying artifacts are created in the synthesized virtual views. This paper proposes a depth-aided exemplar-based inpainting method for recovering large disoclusion. It consists of two processes, warped depth map filling and warped color image filling. Since depth map can be considered as a grey-scale image without texture, it is much easier to be filled. Disoccluded regions of color image are predicted based on its associated filled depth map information. Regions with texture lying around the background have higher priority to be filled than other regions and disoccluded regions are filled by propagating the background texture through the exemplar-based inpainting. Thus artifacts created by diffusion or using foreground information for prediction can be eliminated. Experimental results show texture can be recovered in large disocclusions and the proposed method has better visual quality compared to existing methods.
Starting Page	2840
Ending Page	2843
File Size	861917
Page Count	4
File Format	PDF
ISBN	9781467357609
ISSN	02714302
e-ISBN	9781467357623
DOI	10.1109/ISCAS.2013.6572470
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filling Color Extrapolation Image color analysis Rendering (computer graphics) Estimation Educational institutions inpainting DIBR view synthesis hole filling
Content Type	Text
Resource Type	Article

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