Method and apparatus for signal processing, computer program product, computing system and camera
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United States of America Patent
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Issued Date -
Oct 13, 2005
app pub date -
Dec 22, 2004
filing date -
Jul 4, 2002
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Abandoned
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Abstract
A reconstruction method based on a white-compensated luminance-reconstruction and using filter weights referred to as smartgreen-parameters is proposed. An aliasing free luminance signal, even at the multiples of the sample frequency, and in case of a camera without optical low pass filter is achieved. Moreover this white-compensated-luminance-signal is free of signal distortion. The proposed method allows a suitable low pass filter to be added or combined and in particular will suited to implement a variety of aliasing free color- and contour-filters. The RGB color signals are reconstructed using filter weights that can be chosen as a function of the heaviness of the sensor matrix and of the optical transfer of the camera. It is proposed to apply a contour-reconstruction-filter in parallel with the color-reconstruction-filter.
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