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:
Nov. 10, 2009
Filed:
Oct. 12, 2004
Christian Wolf, Villeurbanne, FR;
Jean-michel Jolion, Villeurbanne, FR;
Christophe Laurent, Vignoc, FR;
Christian Wolf, Villeurbanne, FR;
Jean-Michel Jolion, Villeurbanne, FR;
Christophe Laurent, Vignoc, FR;
France Telecom, Paris, FR;
Abstract
Pixels are classified as text; or 'non-text' by responding to accumulated luminous brightness gradients within a predetermined pixel interior. Text and non-text image characteristics rest on estimating text-containing rectangles by determining a narrow width and a height of a peak in an interval of accumulated gradients around each pixel. The text characteristics also are inferred by detecting character corners by quantifying and smoothing gradient angles and by associating directional corner responses with each pixel.