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Multiple path‐based approach to image‐based street walkthrough
Author(s) -
Lee Dong Hoon,
Jung Soon Ki
Publication year - 2005
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.62
Subject(s) - computer science , software walkthrough , image warping , computer vision , artificial intelligence , rendering (computer graphics) , computer graphics (images) , image based modeling and rendering , pixel , software , software system , software construction , programming language
Image‐based rendering for walkthrough in the virtual environment has many advantages should over the geometry‐based approach, due to the fast construction of the environment and photo‐realistic rendered results. In image‐based rendering technique, rays from a set of input images are collected and a novel view image is rendered by the resampling of the stored rays. Current such techniques, however, are limited to a closed capture space. In this paper, we propose a multiple path‐based capture configuration that can handle a large‐scale scene and a disparity‐based warping method for novel view generation. To acquire the disparity image, we segment the input image into vertical slit segments using a robust and inexpensive way of detecting vertical depth discontinuity. The depth slit segments, instead of depth pixels, reduce the processing time for novel view generation. We also discuss a dynamic cache strategy that supports real‐time walkthroughs in large and complex street environments. The efficiency of the proposed method is demonstrated with several experiments. Copyright © 2005 John Wiley & Sons, Ltd.