Vania Vieira Estrela, Luís Antonio Rivera, Marcos Henrique da Silva Bassani, Vania Vieira Estrela, Vania Vieira Estrela, Marcos Henrique da Silva Bassani, Vânia Estrela, Vânia Vieira Estrela, Vania Vieira Estrela, Luis Antonio Rivera, Luis Antonio Rivera Escriba, Vania Vieira Estrela, Vania Vieira Estrela. Pel-Recursive Motion Estimation Using the Expectation-Maximization Technique and Spatial Adaptation. In WSCG (Posters). pages 47-54, 2004.
Pel-recursive motion estimation is a well-established approach. However, in the presence of noise, it becomes an ill-posed problem that requires regularization. In this paper, motion vectors are estimated in an iterative fashion by means of the Expectation-Maximization (EM) algorithm and a Gaussian data model. Our proposed algorithm also utilizes the local image properties of the scene to improve the motion vector estimates following a spatially adaptive approach. Numerical experiments are presented that demonstrate the merits of our methods.