Raquel Ramos Pinho
ABSTRACT
This paper presents a methodology to do morphing between image represented objects, attending to their physical properties. It can be used amongst images of different objects, or otherwise, between different images of the same object.According to the used methodology the given objects are modelled by the Finite Element Method, and some nodes are matched by Modal Analysis. Then, by solving the Dynamic Equilibrium Equation the displacement field is determined, which allows the simulation of the objects' deformation.This physical approach also allows the computation of the involved strain energy, therefore the estimated morphing can be represented by the local or global strain energy values.This paper also describes the solution used to simulate only the non-rigid components of the involved deformation.
- Bathe, K., Finite Element Procedures, Prentice-Hall, 1996]]Google Scholar
- Cook, R., Malkus, D., Plesha, M., Concepts and Applications of Finite Element Analysis, Wiley, 1989]] Google ScholarDigital Library
- Horn, B., Closed-Form Solution of Absolute Orientation using Unit Quaternions, Journal of the Optical Society America A., 1987]]Google Scholar
- Martin, J., Pentland A., Sclaroff, S., Kikinis, R., Characterization of Neuropathological Shape Deformations, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 20, no. 2, Feb. 1998]] Google ScholarDigital Library
- Nastar, C., Ayache, N., Fast Segmentation, Tracking, and Analysis of Deformable Objects, Fourth International Conference on Computer Vision, Berlin, Germany, 1993]]Google Scholar
- Nastar, C., Modèles Phisiques Déformables et Modes Vibratoires pour l'Analyse du Mouvement non-rigide dans les Images Multidimensionnelles, L'École Nationale des Ponts et Chaussées, 1994]]Google Scholar
- Nastar, C., Ayache, N., Frequency-Based Nonrigid Motion Analysis: Application to Four Dimensional Medical Images, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 18, 1996]] Google ScholarDigital Library
- Pinho, R., Determinação do Campo de Deslocamentos a partir de Imagens de Objectos Deformáveis, Universidade do Porto, 2002]]Google Scholar
- Sclaroff, S., Modal Matching: A Method for Describing, Comparing, and Manipulating Digital Signals, MIT, 1995]]Google Scholar
- Sclaroff, S., Pentland, A., Modal Matching for Correspondence and Recognition, IEEE Transactions on Pattern Analysis and Machine Intelligence, June, 1995]] Google ScholarDigital Library
- Sclaroff, S., Deformable Prototypes for Encoding Shape Categories in Image Databases, Pattern Recognition, vol. 30, no. 4, pp. 627--642, Apr. 1997]]Google ScholarCross Ref
- Tavares, J., Análise de Movimento de Corpos Deformáveis usando Visão Computacional, FEUP, 2000]]Google Scholar
- Tavares, J., Barbosa, J., Padilha, A., Determinação de Correspondência entre Modelos de Contorno e de Superficie, utilizando Modelização por Elementos Finitos e Análise Modal, em Visão por Computador, VI Congresso Nacional de Mecânica Aplicada e Computacional, Aveiro, 2000]]Google Scholar
- Tavares, J., Barbosa, J., Padilha, A., Matching Image Objects in Dynamic Pedobarography, RecPad'2000 11th Portuguese Conference on Pattern Recognition. Porto, Portugal, 2000]]Google Scholar
- Tavares, J., Barbosa, J., Padilha, A., Apresentação de um Banco de Desenvolvimento e Ensaio para Objectos Deformáveis, RESI - Revista Electrónica de Sistemas de Informação, vol. 1, 2002]]Google Scholar
Index Terms
- Morphing of image represented objects using a physical methodology
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