Image analysis – Pattern recognition – Feature extraction
Reexamination Certificate
2005-05-02
2010-02-02
Desire, Gregory M (Department: 2624)
Image analysis
Pattern recognition
Feature extraction
C348S606000, C348S607000, C348S666000, C382S260000, C382S266000, C382S275000
Reexamination Certificate
active
07657098
ABSTRACT:
A ringing area detector classifies the input image into two regions: a mosquito noise region (i.e. filtering region) and a non-mosquito noise region (i.e. non-filtering region), and uses this classification information to adaptively remove the mosquito noise in a mosquito noise reduction system. The mosquito noise reduction system includes a ringing area detector, a local noise power estimator, a smoothing filter, and a mixer. The ringing area detector includes an edge detector, a near edge detector, a texture detector, and a filtering region decision block. The ringing detection block detects the ringing area where the smoothing filter is to be applied. The local noise power estimator controls the filter strength of the smoothing filter. The smoothing filter smoothes the input image. The mixer mixes the smoothed image and the original image properly based on the region information from the ringing area detection block.
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Kim Yeong-Taeg
Lee Seong-Joo
Lin Peng
Desire Gregory M
Myers Andras Sherman LLP
Samsung Electronics Co,. Ltd.
Sherman, Esq. Kenneth L.
Zarrabian, Esq. Michael
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