Machine vision matching method and device, storage medium and product

The invention discloses a machine vision matching method and device, a storage medium and a product, and relates to the technical field of machine vision matching. The method comprises the following steps: performing deletion and gridding sampling screening on edge feature points corresponding to each layer of template image to obtain a plurality of key feature point sets; rotating each key feature point corresponding to the (n-1) th layer of template image according to each rotation angle to obtain a plurality of rotation data; cutting key feature points in the rotation data to obtain template data; sliding the template data in the (n-1) th layer of search image to obtain a matching result after each sliding; obtaining a result after each time of sliding according to the matching result after each time of sliding; obtaining a result corresponding to the 0th layer of template image based on a result after each time of sliding of all the template data; and obtaining matching result sub-pixel estimation based o