METHOD AND APPARATUS OF CHROMA DIRECT MODE GENERATION FOR VIDEO CODING

• Main Authors: CHUANG, Tzu-Der, CHEN, Ching-Yeh, HSIANG, Shih-Ta, HUANG, Yu-Wen, HSU, Chih-Wei, CHIANG, Man-Shu
• Format: Patent
• Language: English; French; German
• Published: 18.10.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

A method and apparatus of prediction for video coding are disclosed. According to one method, a luma Intra prediction mode is determined for a corresponding luma block collocated with the current chroma block, where a predefined mode is assigned to the luma Intra prediction mode when the corresponding luma block collocated with the current chroma block satisfies one or more conditions. A chroma Intra prediction mode is determined for the current chroma block according to the luma Intra prediction mode. The current chroma block is then encoded or decoded according to the chroma Intra prediction mode. According to another method, a predefined mode is assigned to Intra prediction mode for the current block when the current block satisfies one or more conditions. The current block is then encoded or decoded according to the Intra prediction mode.