Pyramidal Block Matching

Pyramidal Block Matching is a technique used in image analysis to find motion or differences between two images, often for tasks like video stabilization or 3D modeling. It works by analyzing images at multiple levels of detail, starting with a coarse, simplified version to quickly identify large movements. Then, it gradually refines the search at higher resolutions to detect smaller, more precise shifts. This layered approach makes the process more efficient and accurate, especially for complex scenes, by focusing on broad motion first and then honing in on finer details.