Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2007-09-28
2011-11-01
Bella, Matthew (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S254000, C382S260000, C382S263000, C382S264000, C382S266000, C382S272000, C382S274000, C382S275000
Reexamination Certificate
active
08050509
ABSTRACT:
A method and apparatus are provided for eliminating image noise to remove spatial-temporal noise and improve visibility. The method includes extracting a spatial-temporal noise level of neighbor pixels around a current pixel, filtering noise of the current pixel by applying a weight to spatial-temporal pixels around the current pixel based on the extracted spatial-temporal noise level, and applying a weight to the noise-filtered pixel and a boosted-up pixel based on an edge intensity and summing the weight-applied pixels. The spatial-temporal noise level is extracted based on spatial-temporal information of neighbor pixels around a current pixel in a current frame and spatial-temporal information of neighbor pixels around a current pixel in a previous frame.
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Hwang Won-kyu
Jeong Young-hoon
Lee Keum-seok
Park Ju-hee
Bella Matthew
Newman Michael A
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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