Motion field modeling and estimation using motion transformation

This paper presents the concept of using a motion transform for finding the motion field between two images. A motion transform is a representation for modeling the motion field in the transform domain. Compared to other parametric motion models, e.g., affine, projective, etc., a motion transform offers a considerable advantage by its capability to model any motion field, including one with motion discontinuities. It also offers the flexibility of dynamically choosing the significant time-frequency components used to model the underlying motion. Simulation results on motion estimation using the DCT/DFT for motion modeling are presented. These results are comparable to the results from a wavelet-based approach.