Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Active Appearance Models"”.
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Segmentation of cervical and lumbar vertebrae in x-ray images using active appearance models and extensions
… for two segmentation stages that utilize Active Appearance Models (AAMs) that were proposed by Cootes et al. The advantage of using AAMs in medical image segmentation applications is that rather than creating models that are purely data driven, AAMs gain a priori knowledge through a …
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Light field appearance manifolds
Statistical shape and texture appearance models are powerful image representations, but previously had been restricted to 2D or 3D shapes with smooth surfaces and lambertian reflectance. In this thesis we present a novel 4D appearance model using image-based rendering techniques, which can …
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Modeling of Aortic Valve Anatomic Geometry from Clinical Multi Detector-Row Computed Tomography Images
… of valve geometries and creation of valve models from multi-detector row computed tomography (MDCT) images that may eventually be used to model stent expansion on a patient specific basis. Our study accomplished three specific goals using clinical 64-slice CT data from Hartford Hospital. …
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Automatic age progression and estimation from faces
… with the existing algorithms. Initially using active appearance models (AAM), facial features are extracted and mapped to people’s ages, afterward a formula is derived which allows the convenient generation of age progressed images irrespective of whether the intended age exists in the training …
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Facial Communicative Signals: valence recognition in task-oriented human-robot Interaction
… valence. It is based on feature extraction with active appearance models (AAMs) and a classification with support vector machines (SVMs). The method does not consider temporal dynamics, but uses a simple majority voting scheme over the classification results for the single frames. This simple …
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Nicht-intrusive Mimikanalyse
… system for non-intrusive analysis of facial appearance, whereas only a notebook and a webcam are applied. Compared to the existent systems a higher independence will be achieved, concerning the environment and individual features of the user. This can particularly be guaranteed by the …
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Real-time Monocular Vision-based Tracking For Interactive Augmented Reality
… angle, light intensity, or light color, using models of the physical properties of reflection. Our experiments show how well these derived quantities actually remained constant with real materials, real lights, and real cameras, while still retaining the ability to discriminate between …