NDLI: A global matching framework for stereo computation

Content Provider	IEEE Xplore Digital Library
Author	Tao, H. Sawhney, H.S. Kumar, R.
Copyright Year	2001
Description	Author affiliation: Sarnoff Corp., Princeton, NJ, USA (Tao, H.)
Abstract	This paper presents a new global matching framework for stereo computation. In this framework, the second view is first predicted from the reference view using the depth information. A global match measure is then defined as the similarity function between the predicted image and the actual image. Stereo computation is converted into a search problem where the goal is to find the depth map that maximizes the global match measure. The major advantage of this framework is that the global visibility constraint is inherently enforced in the computation. This paper explores several key components of this framework including (1) three color segmentation based depth representations, (2) an incremental warping algorithm that dramatically reduces the computational complexity, and (3) scene constraints such as the smoothness constraint and the color similarity constraint. Experimental results using different types of depth representations are presented. The quality of the computed depth maps is demonstrated through image-based rendering from new viewpoints.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Pattern Anal. & Machine Intelligence
Starting Page	532
Ending Page	539
File Size	1264300
Page Count	8
File Format	PDF
ISBN	0769511430
DOI	10.1109/ICCV.2001.937562
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-07
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Layout Rendering (computer graphics) Image converters Search problems Pixel Image segmentation Computational complexity Cameras Motion measurement Search methods
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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