Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2004-03-24
2008-10-14
Kassa, Yosef (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S260000, C382S274000, C382S275000, C358S003260, C358S003270, C358S463000
Reexamination Certificate
active
07437013
ABSTRACT:
A method of reducing spatial noise in an image. Low-pass (smoothing) filters are calculated simultaneously from three successive image rows. Three blocks (m1, m2, m3) are associated with the three successive image rows, and the blocks are processed in row-major order. This implementation is applicable to both luminance and chrominance. The number of smoothing parameters is reduced to one. The technique is applicable to both luminance and chrominance. Directional mapping is used. Extension of the technique to spatial filtering using a 5×5 neighborhood (using five successive image rows) is described. Embodiments of the method using the MMX instruction set are described.
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Driscoll Benjamin D.
General Instrument Corporation
Kassa Yosef
LandOfFree
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