Adaptive process for removing streaks in multi-band digital...

Image analysis – Image enhancement or restoration – Artifact removal or suppression

Reexamination Certificate

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Reexamination Certificate

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06912322

ABSTRACT:
A method of removing streaks from multi-band digital images is presented in which a multi-band image is transformed to an advantageous spectral space, in which a streak removal operation is applied to the image in the advantageous spectral space. The streak removal operation is a method of removing columnar streaks from a multi-band digital image of the type in which it is assumed that pixels in a predetermined spatial and spectral region near a given pixel are strongly related to each other and employing gain and offset values to compute streak removal information, a test is performed for a strong relation between the pixels in a predetermined region spatially and spectrally near a given pixel and streak removal information is computed only if such a strong relationship exists, whereby image content that does not extend the full length of the image in the column direction will not be interpreted as a streak.

REFERENCES:
patent: 5065444 (1991-11-01), Garber
patent: 5729631 (1998-03-01), Wober et al.
patent: 5881182 (1999-03-01), Fiete et al.
patent: 6496286 (2002-12-01), Yamazaki

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