METHOD AND APPARATUS FOR ENCODING VIDEO AND METHOD AND APPARATUS FOR DECODING VIDEO, BASED ON HIERARCHICAL STRUCTURE OF CODING UNIT

摘要

An apparatus and method for encoding video data and an apparatus and method for decoding video data are provided. The encoding method includes: splitting a current picture into at least one maximum coding unit; determining a coded depth to output an encoding result by encoding at least one split region of the at least one maximum coding unit according to operating mode of coding tool, respectively, based on a relationship among a depth of at least one coding unit of the at least one maximum coding unit, a coding tool, and an operating mode, wherein the at least one split region is generated by hierarchically splitting the at least one maximum coding unit according to depths; and outputting a bitstream including encoded video data of the coded depth, information regarding a coded depth of at least one maximum coding unit, information regarding an encoding mode, and information regarding the relationship.

主权项

1. An apparatus for decoding video data, the apparatus comprising:
a receiver which receives a bitstream comprising encoded video data; an extractor which obtains, from the bitstream, the encoded video data, information regarding a coded depth of at least one maximum coding unit, and coding tool information indicating whether a decoding tool is used to decode a coding unit according to size of the coding unit; and a decoder which decodes the coding unit by selectively using the decoding tool according to the size of the coding unit based on the obtained coding tool information.