METHODS AND APPARATUSES FOR ENCODING/DECODING HIGH RESOLUTION IMAGES
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United States of America Patent
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app pub date -
Mar 31, 2015
filing date -
Dec 1, 2009
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Abandoned
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Abstract
A method performed by an apparatus for decoding an image, includes: receiving an encoded bit stream; inverse-quantizing and inverse-transforming the received bit stream to obtain a residue; performing motion compensation on a prediction unit to generate a prediction block; and adding the generated prediction block to the residue to restore the image, wherein a coding unit has a recursive tree structure, and wherein when a planar intra prediction mode is activated, a predicted pixel value of an internal pixel of a current prediction unit is obtained by performing bilinear interpolation using (i) vertically and horizontally directional corresponding internal boundary prediction pixel values in the current prediction unit and (ii) vertically and horizontally directional corresponding pixel values in previously decoded left side block and upper end block of the current prediction unit, and a size of the prediction unit is restricted to no more than 64×64 pixels.
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