Toward effectively generating environment maps

Shoupu Chen; Nathan D. Cahill; Lawrence A. Ray

doi:10.1117/1.1557697

1 April 2003 Toward effectively generating environment maps

Shoupu Chen, Nathan D. Cahill, Lawrence A. Ray

Journal of Electronic Imaging, Vol. 12, Issue 2, (April 2003). https://doi.org/10.1117/1.1557697

We explore a cost-effective approach to creating environment maps. Unlike other environment map generating systems that use specially designed mirrors or sensing devices, our system uses off-the-shelf digital cameras. This makes our system potentially acquirable by average consumers. In our design, the two digital cameras are displaced vertically with parallel optical axes, and the rotation axis passes through the focal points of the two cameras. This vertical displacement arrangement overcomes the problem of having inconsistent occlusions in two adjacent stereo image sets that happen in a horizontally displaced stereo camera system. To obtain dense spatial images, our system uses color-information-based algorithms to propagate disparity values from matched feature points to unmatched feature points and featureless areas. Schemes of transforming local 3-D (X,Y,Z) data to a world coordinate system are also devised to smoothly stitch 3-D data from individual frames for virtual reality modeling language graphics display.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Shoupu Chen, Nathan D. Cahill, and Lawrence A. Ray "Toward effectively generating environment maps," Journal of Electronic Imaging 12(2), (1 April 2003). https://doi.org/10.1117/1.1557697

Published: 1 April 2003

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KEYWORDS

Cameras

Imaging systems

Panoramic photography

Image processing

3D image processing

Head

Image segmentation

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