A colour active contour model for contour extraction in natural scenes

The performance of active contours, originally introduced as snakes, depends on the proper selection of model parameters and initial contours. In natural scenes, active contours often fail to converge to the desired solution because of unconstrained environmental conditions and complex object shapes...

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Bibliographic Details
Main Author: Ngoi, Kian Peng
Other Authors: Soh, Yeng Chai
Format: Theses and Dissertations
Published: 2010
Subjects:
Online Access:http://hdl.handle.net/10356/39018
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Institution: Nanyang Technological University
Description
Summary:The performance of active contours, originally introduced as snakes, depends on the proper selection of model parameters and initial contours. In natural scenes, active contours often fail to converge to the desired solution because of unconstrained environmental conditions and complex object shapes. This thesis presents a new colour active contour model for contour extraction in natural scenes. The proposed model is able to extract complex object boundaries in natural scenes without the need to re-tune model parameters and image thresholds. Specific object features and a priori knowledge of object topology are not required.