Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2005-10-25
2005-10-25
Grant, II, Jerome (Department: 2626)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C358S520000
Reexamination Certificate
active
06959118
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.
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Griessl Max
Wittkop Markus
Wonneberger Siegfried
Albrecht Ralph P.
Dynapel Systems, Inc.
Grant II Jerome
Venable LLP
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