Image analysis – Image enhancement or restoration
Reexamination Certificate
2006-10-17
2006-10-17
Couso, Yon J. (Department: 2624)
Image analysis
Image enhancement or restoration
C358S003260, C348S246000, C250S341100
Reexamination Certificate
active
07123775
ABSTRACT:
An image processing method is provided for obtaining a non-deteriorated pixel value as a pixel value of a pixel free from a defect such as a scar or dust from non-visible beam image information obtained from a defective recording medium having the scar or dust. The method includes the steps of:obtaining a calculated value: Y for each pair of samples of corresponding pixels of visible beam image information and said non-visible beam image information both obtained from the recording medium,in-line-formulae description="In-line Formulae" end="lead"?Y=Mean[IR]−IR+X,in-line-formulae description="In-line Formulae" end="tail"?where, Mean [IR] is an average pixel value of the non-visible beam image information, IR is a pixel value of the non-visible beam image information and X is a pixel value of the visible beam image information;obtaining a regression equation with the pixel value: X of the visible beam image information as an independent variable and the calculated value: Y as a dependent variable;deriving the non-deteriorated image pixel value from the regression equation; andobtaining a corrected pixel value: Z for a deteriorated pixel in the visible beam image information by a following equation;in-line-formulae description="In-line Formulae" end="lead"?corrected pixel value:Z=CF−IR+X,in-line-formulae description="In-line Formulae" end="tail"?where CF is the non-deteriorated pixel value, IR is the pixel value of the non-visible beam image information and X is the pixel value of the visible beam image information.
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Couso Yon J.
Fulbright & Jaworski L.L.P.
Noritsu Koki Co., Ltd.
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