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:
Sep. 20, 2011
Filed:
Mar. 29, 2011
Evgeny P. Smirnov, Moscow, RU;
Evgeny P. Smirnov, Moscow, RU;
Kaspersky Lab ZAO, Moscow, RU;
Abstract
Disclosed are systems, methods and computer program products for detection of spam in raster images. In one example embodiment, a method comprises identifying objects in the raster image; tracing contours of identified objects; computing, angles of inclination of tangents at plurality of points on an object contour; determining, based on the computed angles of inclination, one or more attributes of the object contour, including lengths of line segments of the contour, angles between the line segments, lengths of arcs the contour and radii of curvature of the arcs; generating object signatures containing one or more attributes of the object contours; comparing object signatures of the image with known spam image signatures; and determining that the image contains spam if the number of object signatures that are substantially similar to the known spam image signatures exceeds a predetermined threshold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile