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Title:
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Green Theorems and Qualitative Properties of the Optical Flow |
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Author:
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Poggio, Tomaso; Verri, Allessandro; Torre, Vincent |
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Abstract:
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How can one compute qualitative properties of the optical flow, such as expansion or rotation, in a way which is robust and invariant to the position of the focus of expansion or the center of rotation? We suggest a particularly simple algorithm, well-suited to VLSI implementations, that exploits well-known relations between the integral and differential properties of vector fields and their linear behaviour near singularities. |
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URI:
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http://hdl.handle.net/1721.1/6565
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Issue Date:
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1991-04-01 |
