ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,397, issued on July 8, was assigned to ABBYY Development Inc. (Dover, Del.).
"Detecting fields in document images" was invented by Ivan Zagaynov (Dolgoprudniy, Russia), Vasily Loginov (Moscow), Stanislav Semenov (Moscow) and Aleksandr Valiukov (St. Petersburg, Russia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of detecting fields in document images includes: receiving a codebook comprising a set of visual words, each visual word corresponding to a center of a cluster of local descriptors; calculating, based on a set of user labeled document images, for each visual word of the codebook, a respective frequency distribution of a field positi...