VIDEO CODING DEVICE, VIDEO DECODING DEVICE, VIDEO SYSTEM, VIDEO CODING METHOD, VIDEO DECODING METHOD, AND COMPUTER READABLE STORAGE MEDIUM
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United States of America Patent
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Dec 4, 2015
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Jun 7, 2013
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Abstract
A video coding device that allows adaptive filtering within a coding loop and allows filter design in units of a pixel or in units of a small area that is constituted by a plurality of pixels, includes: a pixel value feature amount calculation unit configured to derive a feature amount of pixel values of a decoded image in the pixel units or the small area units; a threshold processing and sorting unit configured to compare the feature amounts derived by the pixel value feature amount calculation unit with a threshold, and to sort the respective pixels or the respective small areas based on a result of the comparison; and a dynamic threshold determination unit configured to determine the threshold based on the feature amounts derived by the pixel value feature amount calculation unit.
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