Method, medium, and apparatus encoding and/or decoding an image using the same coding mode across components
First Claim
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1. An apparatus for decoding an image, the apparatus comprising:
- a processor to obtain a predicted direction of a luma component of a current block, to obtain a predicted direction of a chroma component corresponding to the predicted direction of the luma component according to one of predetermined decoding modes, to obtain a predicted block based on the predicted direction of the chroma component, to obtain a residue by decoding a bitstream, and to restore a current image by using the obtained predicted block and the obtained residue,wherein the predicted direction of the chroma component is identical to the predicted direction of the luma component.
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Abstract
A method, medium, and apparatus encoding and/or decoding an image in order to increase encoding and decoding efficiency by performing binary-arithmetic coding/decoding on a binary value of a syntax element using a probability model having the same syntax element probability value for respective context index information of each of at least two image components.
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Citations
1 Claim
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1. An apparatus for decoding an image, the apparatus comprising:
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a processor to obtain a predicted direction of a luma component of a current block, to obtain a predicted direction of a chroma component corresponding to the predicted direction of the luma component according to one of predetermined decoding modes, to obtain a predicted block based on the predicted direction of the chroma component, to obtain a residue by decoding a bitstream, and to restore a current image by using the obtained predicted block and the obtained residue, wherein the predicted direction of the chroma component is identical to the predicted direction of the luma component.
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Specification