Adaptive non-linear noise reduction techniques
An impulse-reducing module ( 200 ) reduces random noise in video pixels by providing an impulse detector ( 244 ) and an impulse reducer, such as a median filter ( 250 ). The impulse detector ( 244 ) generates filter control signals in response to detection of impulses, and the median filter ( 250 )...
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Main Author | |
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Format | Patent |
Language | English |
Published |
02.01.2007
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Subjects | |
Online Access | Get full text |
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Summary: | An impulse-reducing module ( 200 ) reduces random noise in video pixels by providing an impulse detector ( 244 ) and an impulse reducer, such as a median filter ( 250 ). The impulse detector ( 244 ) generates filter control signals in response to detection of impulses, and the median filter ( 250 ) generates filtered pixel values in response to the filter control signals. The control signals set the median filter to a plurality of filter operating modes. |
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Bibliography: | Application Number: US20050153472 |