SYSTEM AND METHOD FOR MAPPED SPLICING OF A THREE-DIMENSIONAL LOOK-UP TABLE FOR IMAGE FORMAT CONVERSION
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United States of America Patent
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Issued Date -
Oct 17, 2019
app pub date -
Apr 17, 2018
filing date -
Apr 17, 2018
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Abstract
A system and method that splices an initial 3D LUT for imaging format conversion into a plurality of smaller LUTs that can be stored in separate RAMs. During operation, the upper 5-bits serve as index values of each component of an incoming GBR pixel and are used to determine which of the smaller RAMs contain the correct index values for the pixel data. Specifically, a first index value can be derived from the incoming GBR pixel data and used to lookup all sub-cube vertices corresponding to the incoming pixel and the corresponding RAMs. After determining the correct RAMs, a predetermined algorithm for each given RAM is applied to find the normalized RAM look-up addresses and identify the correct data for the exemplary imaging format conversion process.
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