Coding and decoding method and device

• Main Authors: ZHENG JIANHUA, HE YUN, WANG LIQIANG, YU QUANHE
• Format: Patent
• Language: Chinese; English
• Published: 21.04.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention provides an encoding and decoding method and device. The encoding and decoding method comprises the steps: an encoding device carries out derivation according to a to-be-encoded encodingblock to obtain a derivative block; the encoding device encodes the derivative block by adopting an encoding skip mode or a direct encoding mode to obtain first encoding information; the encoding device determines a code stream according to the first encoding information, wherein the code stream comprises indication information, and the indication information is used for indicating that the firstencoding information is obtained by encoding the derivative block in the encoding skip mode or the direct encoding mode; a decoding device analyzes the code stream to obtain the indication information; and the decoding device decodes the derivative block through the encoding skip mode or the direct encoding mode. The encoding and decoding method provided by the embodiment of the invention is helpful for improving the enco