IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, AND IMAGE ENCODING/DECODING DEVICE

摘要

The image decoding method includes determining a context for use in a current block, from among a plurality of contexts (S204), wherein in the determining (S204): 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 (S207), 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".