Hierarchical, computationally efficient motion estimation algorithm
James R. Bergen, Edward H. Adelson · Annual Meeting Optical Society of America · 1987
Deriving optical flow information from image sequences is an important early step in image understanding. This information is also very useful directly in a number of image processing tasks. We have developed a low-level intensity based algorithm for computing optical flow. This computation proceeds in a coarse-to-fine manner within an image pyramid representation.