Image analysis – Image enhancement or restoration – Artifact removal or suppression
Reexamination Certificate
2006-02-14
2006-02-14
Johns, Andrew W. (Department: 2621)
Image analysis
Image enhancement or restoration
Artifact removal or suppression
C382S261000, C382S264000, C382S265000, C382S266000, C358S463000, C348S241000, C348S470000, C348S606000, C348S607000, C348S619000, C348S909000, C348S910000
Reexamination Certificate
active
06999634
ABSTRACT:
A spatio-temporal joint filter and a spatial joint filter for noise reduction are disclosed. The spatio-temporal joint filter includes a spatial joint filter including the first and second sub filters having different characteristics and includes a temporal joint filter. When the present invention is adequately used, an edge/detail region of an image is well preserved, an aggressive noise reduction is performed on a flat region, and the temporal flicker problems are eliminated. Additionally, it has an intrinsic motion compensation effect by using the spatio-temporal correlation between the adjacent frames.
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Birch, Stewart,Kolasch & Birch LLP
Edwards Patrick L.
Johns Andrew W.
LG Electronics Inc.
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