Dot adjacency compensation in optical storage systems using ink dots
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United States of America Patent
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Dec 16, 2003
Grant Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Jul 15, 1997
priority date (Note) -
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Abstract
A method of accurately detecting the value of a dot of sensed image data, said image data comprising an array of dots and said sensed image data comprising a sampling of said image data at a rate greater than the pitch frequency of said array of dots so as to produce an array of pixels, said method comprising the steps of: determining an expected middle pixel of said array of pixels, said middle pixel corresponding to an expected central location of a corresponding dot; utilizing the sensed value of said middle pixel and the sensed value of a number of adjacent pixels as an index to a lookup table having an output corresponding to the value of a dot centred around the corresponding location of said pixel.
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