US Patent Issued to Smart Engines Service on Oct. 28 for "Memory-efficient feature descriptors for localization and classification of identity documents" (Russian Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,321, issued on Oct. 28, was assigned to Smart Engines Service LLC (Moscow).

"Memory-efficient feature descriptors for localization and classification of identity documents" was invented by Daniil Pavlovich Matalov (Moscow), Elena Evgenyevna Limonova (Moscow), Natalya Sergeevna Skoryukina (Moskovskay obl., Russia) and Vladimir Viktorovich Arlazarov (Moscow).

According to the abstract* released by the U.S. Patent & Trademark Office: "Memory-efficient feature descriptors for localization and classification of identity documents. In an embodiment, patches are extracted from an input image of a document. For each of the patches, a gradient map is constructed for a plurality of gradien...