Boundary vector field for parametric active contours

Authors:
K. W. Sum;Paul Y. S. Cheung
Affiliations:
Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong;Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong
Venue:
Pattern Recognition
Year:
2007

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Abstract

Snakes are widely used in the fields of computer vision and image processing. There are a number of shortcomings of the traditional snakes, including the capture range problem and the concave object extraction problem. Gradient vector flow snake enhances the concave object extraction capability. However, it suffers from high computational requirement. In this paper, we present a new external force which is generated by a novel interpolation scheme which reduces the computational requirement significantly, and at the same time, improves the capture range and concave object extraction capability.