29 January 2007 Optimal multiple sprite generation based on physical camera parameter estimation
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Abstract
We present a robust and computational low complex method to estimate the physical camera parameters, intrinsic and extrinsic, for scene shots captured by cameras applying pan, tilt, rotation, and zoom. These parameters are then used to split a sequence of frames into several subsequences in an optimal way to generate multiple sprites. Hereby, optimal means a minimal usage of memory while keeping or even improving the reconstruction quality of the scene background. Since wide angles between two frames of a scene shot cause geometrical distortions using a perspective mapping it is necessary to part the shot into several subsequences. In our approach it is not mandatory that all frames of a subsequence are adjacent frames in the original scene. Furthermore the angle-based classification allows frame reordering and makes our approach very powerful.
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Matthias Kunter, Andreas Krutz, Mrinal Mandal, Thomas Sikora, "Optimal multiple sprite generation based on physical camera parameter estimation", Proc. SPIE 6508, Visual Communications and Image Processing 2007, 65080B (29 January 2007); doi: 10.1117/12.704145; https://doi.org/10.1117/12.704145
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