Patent ID: 11936850
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 3:
4. A method for intra prediction, implemented by an encoder, the method comprising:
enabling intra prediction, and determining occupancy information of a first number of neighboring nodes of a coded node;
determining occupancy information of a second number of neighboring nodes of the coded node based on a position association between at least one neighboring node of the coded node and a child node of the coded node, wherein the first number is greater than the second number; and
determining an occupancy prediction result of the child node of the coded node based on the occupancy information of the second number of neighboring nodes, wherein determining the occupancy prediction result of the child node of the coded node based on the occupancy number comprises:
obtaining a third number associated with the second number; and
performing intra prediction on occupancy information of the child node of the coded node based on the occupancy number and the third number to derive the occupancy prediction result of the child node of the coded node,
wherein performing intra prediction on the occupancy information of the child node of the coded node based on the occupancy number and the third number to derive the occupancy prediction result of the child node of the coded node comprises:
performing, in response to determining that the occupancy number is different from the third number, intra prediction on the occupancy information of the child node of the coded node based on the occupancy number, a first threshold, and a second threshold to derive the occupancy prediction result of the child node of the coded node; or
performing, in response to determining that the occupancy number is the same as the third number, intra prediction on the occupancy information of the child node of the coded node based on the occupancy number, a third threshold, and a fourth threshold to derive the occupancy prediction result of the child node of the coded node.