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

摘要

An image coding method according to the present invention partitions an input image signal (120) into processing units, and codes the partitioned image to generate a code sequence (140), the image coding method including: determining a partitioning pattern for hierarchically partitioning the input image signal (120) in order starting from a largest unit of the processing units; generating partition information (131) indicative of the partitioning pattern; and coding partition information (131), wherein the partition information (131) includes maximum used hierarchy depth information (used_max_depth) indicative of a maximum used hierarchy depth which is a hierarchy depth of a deepest processing unit of the processing units included in the partitioning pattern.