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A wavelet-frame based image force model for active contouring algorithms

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3 Author(s)
Hsien-Hsun Wu ; Cytokinetics Inc., San Francisco, CA, USA ; Jyh-Charn Liu ; C. Chui

This paper proposes a directional image force (DIF) for active contouring. DIF is the inner product of the zero crossing strength (ZCS) of wavelet frame coefficients, and the normal of a snake, by representing strength and orientation of edges at multiple resolution levels. DIF markedly improves the immunity of snakes to noise and convexity

Published in:

IEEE Transactions on Image Processing  (Volume:9 ,  Issue: 11 )