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Image-based photo hulls

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3 Author(s)
Slabaugh, G. ; Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA ; Schafer, R. ; Hans, Mat

We present an efficient image-based rendering algorithm that computes photo hulls of a scene photographed from multiple viewpoints. Our algorithm, called image-based photo hulls (IBPH), like the image-based visual hulls (IBVH) algorithm from Matusik et. al. (2000) on which it is based, takes advantage of epipolar geometry to efficiently reconstruct the geometry and visibility of a scene. Our IBPH algorithm differs from IBVH in that it utilizes the color information of the images to identify the scene geometry. These additional color constraints often result in a more accurately reconstructed geometry, which projects to better synthesized virtual views of the scene. We demonstrate our algorithm running in a real-time 3D telepresence application using video data acquired from four viewpoints.

Published in:

3D Data Processing Visualization and Transmission, 2002. Proceedings. First International Symposium on

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