Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus
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United States of America Patent
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Mar 6, 2018
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Jan 23, 2017
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Jun 27, 2011
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Abstract
The image coding method includes: determining a context for a current block to be processed, from among a plurality of contexts; and performing arithmetic coding on the control parameter for the current block to generate a bitstream corresponding to the current block, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is one of “mvd_l0” and “mvd_l1”.
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