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Abstract
In this thesis we propose a Dynamic Deformable Template (DDT) using a Stable Mass Spring Model (SMSM). In our work, we combine the idea of deformable templates and physically based models in the proposed DDTs. A DDT is a template whose deformation is governed by its physical properties. We use two different strategies for generating a DDT. Handcrafted DDTs are those whose structural descriptions are specific to the shape of the object class and vary among the classes. Rectangular grid DDTs are structurally equal for all the shape classes and capable of sampling space around the object as well. Object specific shape information is introduced in to the templates as model forces. We also experimented with two different matching quality measures: global and local measures. The first one measures the quality of global fitting of the templates and the second one measures the quality of fitting of the templates at local level. The first measure can be applied to both types of templates. The second measure can only be applied to the rectangular grid DDTs as it requires comparison between corresponding parts of templates. We used handwritten digit