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Region-Based 2D Deformable Generalized Cylinder for Narrow Structures Segmentation

2020-03-30 | |  60 |   39 |   0

Abstract

In this paper, we present a region-based deformable cylinder model, extending the work on classical region-based active contours and gradient-based ribbon snakes. Defined by a central curve playing the role of the medial axis and a variable thickness, the model is endowed with a region-dependent term.This energy follows the narrow band principle, in order to handle local region properties while overcoming limitations of classical edge-based models. The energy is subsequently transformed and derived in order to allow implementation on a polygonal line deformed with gradient descent. The model is used to extract path-like ob jects in medical and aerial images.

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