Analysis and evaluation of a general camera model |
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Authors: | A Ryberg B Lennartson A-K Christiansson M Ericsson L Asplund |
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Affiliation: | aUniversity West, SE-46186 Trollhättan, Sweden;bChalmers University of Technology, SE-41296 Göteborg, Sweden;cMälardalen University, Box 883, SE-72123 Västerås, Sweden |
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Abstract: | A versatile General Camera Model, GCM, has been developed, and is described in detail. The model is general in the sense that it can capture both fisheye and conventional as well as catadioptric cameras in a unified framework. The camera model includes efficient handling of non-central cameras as well as compensations for decentring distortion. A novel way of analysing radial distortion functions of camera models leads to a straightforward improvement of conventional models with respect to generality, accuracy and simplicity. Different camera models are experimentally compared for two cameras with conventional and fisheye lenses, and the results show that the overall performance is favourable for the GCM. |
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Keywords: | Camera models Fisheye Catadioptric camera Central camera Non-central camera Radial distortion Decentring distortion Stereo vision |
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