The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Nov. 11, 2022
Smart Engines Service Llc, Moscow, RU;
Daniil Pavlovich Matalov, Moscow, RU;
Elena Evgenyevna Limonova, Moscow, RU;
Natalya Sergeevna Skoryukina, Moskovskay obl., RU;
Vladimir Viktorovich Arlazarov, Moscow, RU;
Smart Engines Service LLC, Moscow, RU;
Abstract
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 gradient orientations, a plurality of classifiers are applied to rectangles in the gradient map, and a feature descriptor is generated based on the values output by the plurality of classifiers. The feature descriptors are then compared to templates to match the document to one of the templates for document localization and classification.