1 July 1991 Motion displacement estimation using an affine model for image matching
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A model is developed for estimating the displacement field in spatio-temporal image sequences that allows for affine shape deformations of corresponding spatial regions and for affine transformations of the image intensity range. This model includes the block matching method as a special case. The model parameters are found by using a least-squares algorithm. We demonstrate experimentally that the affine matching algorithm performs better in estimating displacements than other standard approaches, especially for long-range motion with possible changes in scene illumination. The algorithm is successfully applied to various classes of moving imagery, including the tracking of cloud motion.
Chiou-Shann Fuh, Petros Maragos, "Motion displacement estimation using an affine model for image matching," Optical Engineering 30(7), (1 July 1991). https://doi.org/10.1117/12.55885 . Submission:

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