A ne Invariant Gradient Flows
نویسندگان
چکیده
An aane invariant metric allowing one to compute aane invariant gradient descent ows is rst presented in this work. This means that given an aane invariant energy, we compute based on this metric the ow that minimizes this energy as fast as possible and in an aane invariant way. Two examples are then presented. The rst one shows that the aane ow minimizing the area enclosed by a planar curve is given by the aane geometric heat ow. We then extend this energy to derive aane invariant active contours for invariant image segmentation.
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