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What is Deformable Model

Handbook of Research on Natural Computing for Optimization Problems
Deformable models are curves or surfaces defined within an image domain that provide an abstract model of an object class by modeling the variability separately in shape, texture or imaging conditions of the objects in the class. Deformable models denote the shape of objects as a stretchy 2D curve or a 3D surface that can be deformed to match a particular instance of that object class. It can move under the influence of internal force that are designed to keep the model smooth during the deformation and external force that defined to move the model toward an object boundary or other desired features within an image.
Published in Chapter:
Active Contour Model for Medical Applications
Ritam Saha (Tripura University, India) and Mrinal Kanti Bhowmik (Tripura University, India)
DOI: 10.4018/978-1-5225-0058-2.ch038
Abstract
Recent developments in medical imaging techniques have brought an entirely new research field. Medical images are frequently corrupted by inherent noise and artifacts that could make it difficult to extract accurate information, and hence compromising the quality of clinical examination. So accurate detection is one of the major problems for medical image segmentation. Snakes or Active contour method have gained wide attention in medical image segmentation for a long time. A Snake is an energy-minimizing spline that controlled by an external energy and influenced by image energy that pull it towards features such as lines and edges. One of the key difficulties with traditional active contour algorithms is a large capture range problem. The contribution of this paper is that to in-depth analysis of the existing different contour models and implementation of techniques with minor improvements that to solve the large capture range problem. The experiment results of this model attain high accuracy detection and outperform the classical snake model in terms of efficiency and robustness.
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