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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.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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1
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Bathe, K., Finite Element Procedures, Prentice-Hall, 1996
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2
|
Cook, R., Malkus, D., Plesha, M., Concepts and Applications of Finite Element Analysis, Wiley, 1989
|
| |
3
|
Horn, B., Closed-Form Solution of Absolute Orientation using Unit Quaternions, Journal of the Optical Society America A., 1987
|
| |
4
|
|
| |
5
|
Nastar, C., Ayache, N., Fast Segmentation, Tracking, and Analysis of Deformable Objects, Fourth International Conference on Computer Vision, Berlin, Germany, 1993
|
| |
6
|
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
|
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7
|
|
| |
8
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Pinho, R., Determinação do Campo de Deslocamentos a partir de Imagens de Objectos Deformáveis, Universidade do Porto, 2002
|
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9
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Sclaroff, S., Modal Matching: A Method for Describing, Comparing, and Manipulating Digital Signals, MIT, 1995
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10
|
|
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11
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Sclaroff, S., Deformable Prototypes for Encoding Shape Categories in Image Databases, Pattern Recognition, vol. 30, no. 4, pp. 627--642, Apr. 1997
|
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12
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Tavares, J., Análise de Movimento de Corpos Deformáveis usando Visão Computacional, FEUP, 2000
|
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13
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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
|
| |
14
|
Tavares, J., Barbosa, J., Padilha, A., Matching Image Objects in Dynamic Pedobarography, RecPad'2000 11th Portuguese Conference on Pattern Recognition. Porto, Portugal, 2000
|
| |
15
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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
|
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