Image analysis – Image enhancement or restoration – Artifact removal or suppression
Reexamination Certificate
2007-04-30
2010-10-12
Bella, Matthew C (Department: 2624)
Image analysis
Image enhancement or restoration
Artifact removal or suppression
Reexamination Certificate
active
07813587
ABSTRACT:
A general shoot suppression method and system for image detail enhancement that provides good suppression in shoot areas while preserving the enhancement (with less or no suppression) in non-shoot areas. Asymmetry checker checks the luminance variation of pixels around the current pixel within a filtering range. Based on the checking result, different patterns of luminance variation in the neighborhood of the current pixel are categorized. Higher suppression is applied to those patterns that are more likely to cause overshoot/undershoot. Optionally, suppression is further associated with the intensity of detail signal at each pixel position. An intensity checker checks the magnitude of the detail signal. If the detail signal is weak at a current pixel position, it is unlikely that obvious shoot artifacts appear at that position, and little or no suppression is applied. Such a method and system provide shoot suppression only in shoot areas while maintaining good enhancement in non-shoot areas.
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Kim Yeong-Taeg
Wang Xianglin
Bella Matthew C
Myers Andras Sherman LLP
Rosario Dennis
Samsung Electronics Co,. Ltd.
Sherman, Esq. Kenneth L.
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