FRACTIONAL-PEL INTERPOLATION FILTER METHOD, FILTER DEVICE AND ELECTRONIC DEVICE USING THE SAME
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United States of America Patent
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Mar 2, 2015
filing date -
Sep 3, 2012
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Abandoned
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Abstract
A fractional-pel interpolation filter method. The method adopts an 8-tap interpolation filter and a 6-tap interpolation filter, and includes: 1) applying an 8-tap interpolation filter to adjacent integer-pel pixels, thus acquiring fractional-pel pixels between adjacent integer-pel pixels in a horizontal direction or a vertical direction; and 2) to the adjacent fractional-pel pixels between the adjacent integer-pel pixels, applying the horizontal 8-tap interpolation filter in the horizontal direction and then a 6-tap interpolation filter in the vertical direction for conducting interpolations twice, thus acquiring the remaining 9 fractional-pel pixels.
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