Method and device for determining coding mode

• Main Authors: CHEN JIANHUA, FANG SHUQING, DONG XINCHAO
• Format: Patent
• Language: Chinese; English
• Published: 15.07.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

One or more embodiments of the invention provide a coding mode determination method and device, and the method comprises the steps: obtaining the rate distortion optimization cost RDcost of a first coding mode and the absolute transformation error and SATD of a second coding mode; obtaining an estimated coding cost of the second coding mode according to the SATD and a rate distortion influence parameter; the rate distortion influence parameter is used for representing an associated parameter of the RDcost of the second coding mode; and in response to the fact that the RDcost of the first coding mode is smaller than the estimated coding cost of a second coding mode, selecting the first coding mode as a mode used for coding a target coding unit. According to the embodiment of the invention, the encoding complexity of the encoder is reduced, the selection of the encoding mode is more accurate, and the encoding performance is improved. 本说明书一个或多个实施例提供一种编码模式的确定方法和装置，其中，该方法包括：获取第一编码模式的率失真优化代价RDcost和第二编码模式的绝对变换误差和SAT