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. 02, 2012
Filed:
Jan. 14, 2010
John Adcock, San Fracisco, CA (US);
Matthew Cooper, San Francisco, CA (US);
Laurent Denoue, Palo Alto, CA (US);
Hamed Pirsiavash, Irvine, CA (US);
John Adcock, San Fracisco, CA (US);
Matthew Cooper, San Francisco, CA (US);
Laurent Denoue, Palo Alto, CA (US);
Hamed Pirsiavash, Irvine, CA (US);
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A system and method for identifying key frames of a presentation video that include stationary informational content. A sequence of frames is obtained from a presentation video and differences of pixel values between consecutive frames of the sequence of frames are computed. Sets of consecutive frames that are stationary are identified, wherein consecutive frames that are stationary have a proportion of changed pixel values below a first predetermined threshold, and wherein pixel values are deemed to be changed when the difference between the pixel values for corresponding pixels in consecutive frames exceeds a second predetermined threshold. Next, a set of key frames that include stationary informational content is retained. The set of key frames that include stationary informational content is then displayed for user interaction.