| 摘要 |
The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, 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 (i) merge_flag, (ii) ref_idx_l0 or ref_idx_l1, (iii) inter_pred_flag, (iv) mvd_l0 or mvd_l1, (v) no_residual_data_flag, (vi) intra_chroma_pred_mode, (vii) cbf_luma, and (viii) cbf_cb or cbf_cr.
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