Browsing by Subject "Facial animation"

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    Modeling and animating personalized faces
    (2002) Erol, Fatih
    A very important and challenging problem in computer graphics is modeling and animation of individualized face models. In this thesis, we describe a facial modeling and animation system attempting to address this problem. The system uses muscle-based generic face model and deforms it using deformation techniques to model individualized faces. Two orthogonal photos of the real faces are used for this purpose. Image processing techniques are employed to extract certain features on the photographs, which are then refined manually by the user through the facilities of the user interface of the system. The feature points located on the frontal and side views of a real face are used to deform the generic model. Then, the muscle vectors in the individualized face model are arranged accordingly. Individualized face models produced in this manner are animated using parametric interpolation techniques.
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    Realistic speech animation of synthetic faces
    (1998) Uz, Barış
    In this study, physically-based modeling and parameterization are combined to generate realistic speech animation on synthetic faces. Physically-based modeling is used for muscles which are modeled as forces deforming the mesh of polygons. Parameterization technique is used for generating mouth shcipes lor speech animation. Each meaningful part of a text, a letter in our case, corresponds to a specific mouth shai^e, and this shape is generated by setting a set of parameters used for representing the muscles and jaw rotation. A mechanism has also been developed to generate and synchronize facial expressions while speaking. Tags specifying facial expressions are inserted into the input text together with the degree of the expression. In this way, the facial expression with the specified degree is generated and synchronized with speech animation.
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    ItemOpen Access
    Turkey: State of the art in computer graphics-The Turkish scene
    (1996) Özgüç, B.
    [No abstract available]