A wavelet-frame based image force model for active contouring algorithms.
basic_science · Level V
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- Record sourced from PubMed, PMID 18262935.
- Also identified by DOI 10.1109/83.877221.
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Abstract
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.