Intra-frame prediction mode determination method and device, equipment and storage medium

• Main Authors: XU TONGDA, QIN HONGWEI, PI JINYONG, WANG YAN
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The embodiment of the invention discloses an intra-frame prediction mode determination method and device, equipment and a storage medium, and the method comprises the steps: obtaining a first direction mode set corresponding to a current coding block for the current coding block; the first direction mode set comprises at least one direction mode; determining a target direction mode in a plurality of intra-frame direction modes based on the first cost value of each direction mode in the first direction mode set; based on the first cost value of the target direction mode and the second cost value of each non-direction mode in a plurality of non-direction modes, removing a non-direction mode to be removed from the plurality of non-direction modes to obtain at least one target non-direction mode; and determining a target intra-frame prediction mode of the current coding block in the target direction mode and the at least one target non-direction mode based on the third cost value of the target direction mode and