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. 16, 2012
Filed:
Mar. 27, 2009
Rohit Prasad, Acton, MA (US);
Premkumar Natarajan, Sudbury, MA (US);
Ehry Macrostie, Watertown, MA (US);
Rohit Prasad, Acton, MA (US);
Premkumar Natarajan, Sudbury, MA (US);
Ehry MacRostie, Watertown, MA (US);
Raytheon BBN Technologies Corp., Cambridge, MA (US);
Abstract
Multi-frame persistence of videotext is exploited to mitigate challenges posed by varying characteristics of videotext across frame instances to improve OCR techniques. In some examples, each frame of video is processed to form multiple binary images, and one or more text hypotheses is formed from each binary image. In some examples, one or more combined images are formed from multiple frames processed to form a binary image and a corresponding text hypothesis. The text hypotheses are combined to yield an overall text recognition output.