Classification of curve-evolution

Euclidean space

• constant move (mat. morphology: dilatation / erosion)

¶ t f = a n

• curvature-dependent move [Alvarez, Morel, Lions]

¶ t f = b (k) n

exists also an affin invariant version [Sapiro, Tannenbaum]

• reaction-diffusion space [Kimia]

¶ t f = (a + b (k)) n

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