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:
Jan. 31, 2012
Filed:
Jun. 06, 1997
Arun Hampapur, White Plains, NY (US);
Mojgan Monika Gorkani, San Francisco, CA (US);
Chiao-fe Shu, San Mateo, CA (US);
Amarnath Gupta, Redwood City, CA (US);
Arun Hampapur, White Plains, NY (US);
Mojgan Monika Gorkani, San Francisco, CA (US);
Chiao-Fe Shu, San Mateo, CA (US);
Amarnath Gupta, Redwood City, CA (US);
Virage, Incorporated, San Francisco, CA (US);
Abstract
A system and method that processes video to extract a keyframe-based adequate visual representation. The method utilizes a hierarchical processing technique. The first stage in the hierarchy extracts a chromatic difference metric from a pair of video frames. An initial set of frames is chosen based on the chromatic metric and a threshold. A structural difference measurement is extracted from this initial set of frames. A second threshold is used to select key frames from the initial set. The first and second thresholds are user selectable. The output of this process is the visual representation. The method is extensible to any number of metrics and any number of levels.