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. 25, 2005
Filed:
Mar. 20, 2002
Max Griessl, Munich, DE;
Markus Wittkop, Ismaning, DE;
Siegfried Wonneberger, Munich, DE;
Dynapel Systems, Inc., New York, NY (US);
Abstract
In a video processing system scene shifts are detected and the need for adjusting the brightness between pairs of adjacent frames of a video motion picture is assessed. The need for brightness adjustment is assessed and a possible scene shift is detected by identifying homogeneous pixels in at least one frame of a pair of adjacent frames of the motion picture. The brightness of one of the adjacent frames is then adjusted and a scene shift is detected based on the ratio of the number of homogeneous pixels undergoing a substantial change in brightness relative to the total number of homogeneous pixels identified. When a need for a brightness adjustment is determined the brightness of one of the frames is adjusted before estimating optical flow between the frames.