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, 2001
Filed:
Nov. 04, 1999
Lambert Ernest Wixson, Rocky Hill, NJ (US);
Sarnoff Corporation, Princeton, NJ (US);
Abstract
Method and apparatus for detecting salient motion in an image sequence using optical flow. For each pixel in an image, frame-to-frame optical flow information are collected over time for computing a rough estimate of the total image distance traveled by each pixel. Specifically, an optical flow field is generated for every two successive image frames. The resulting optical flow field is applied to warp one or more intermediate measure images that contain intermediate cumulative measurements. The warped measure images for an image sequence are used to compute a sum of frame-to-frame optical flow fields for the image sequence to yield a cumulative flow field that can be used to generate a measure of salience for each image point.