# US 12,113,966 B2 · Candidate list construction in intra-inter blending mode > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,966 B2 - Document ID: US12113966B2 - Status: Granted - Kind: B2 - Application number: 18/365,980 - Filed: 2023-08-05 - Published: 2023-11-23 - Granted: 2024-10-08 - Earliest claimed: 2018-10-10 - Assignees: Tencent America LLC - Applicants: Tencent America LLC - Inventors: Xiaozhong Xu; Xiang Li; Shan Liu - Web page: https://patentgrep.com/patent/US12113966B2 ## CPC - H04N 19/105: Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction - H04N 19/573: Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction - H04N 19/176: the region being a block, e.g. a macroblock - H04N 19/503: involving temporal prediction (adaptive coding with adaptive selection between spatial and temporal predictive coding H04N19/107; adaptive coding with adaptive selection among a plurality of temporal predictive coding modes H04N19/109) - H04N 19/52: by predictive encoding - H04N 19/543: using regions - H04N 19/593: involving spatial prediction techniques - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A method of video decoding includes creating a candidate list for a current block in a current picture included in a coded video bitstream. The method further includes determining a coding mode for a candidate block associated with the current block. The method further includes determining whether to add, to the candidate list, a vector associated the candidate block based on the determined coding mode. The method further includes reconstructing the current block using at least one candidate from the candidate list. ## Claims ### Claim 1 A method of video encoding comprising: determining that a current block in a current picture is to be encoded in an intra-inter blending mode; determining a coding mode for a candidate block neighboring the current block; in response to (i) the determination that the current block is to be encoded in the intra-inter blending mode and (ii) the determined coding mode for the neighboring candidate block being an intra block copy mode, setting the neighboring candidate block as unavailable so that a block vector of the neighboring candidate block is not included in a candidate list; and encoding the current block based on at least one candidate from the candidate list. ### Claim 2 (depends on 1) The method according to claim 1, further comprising: determining whether a luma component and a chroma component of the current block have a same coding tree structure; and adding the block vector associated with the neighboring candidate block to the candidate list based on a determination that the luma component and the chroma component have the same coding tree structure. ### Claim 3 (depends on 1) The method according to claim 1, further comprising: generating a coded video bitstream based on the at least one candidate from the candidate list. ### Claim 4 (depends on 1) The method according to claim 1, wherein the candidate list is a merge candidate list, and the neighboring candidate block is a merge candidate. ### Claim 5 A video decoding apparatus, comprising: processing circuitry configured to determine that a current block in a current picture is encoded in an intra-inter blending mode; determine a coding mode for a candidate block neighboring the current block; in response to (i) the determination that the current block is to be encoded in the intra-inter blending mode and (ii) the determined coding mode for the neighboring candidate block being an intra block copy mode, set the neighboring candidate block as unavailable so that a block vector of the neighboring candidate block is not included in a candidate list; and reconstruct the current block based on at least one candidate from the candidate list. ### Claim 6 (depends on 5) The video decoding apparatus according to claim 5, wherein the processing circuitry is configured to: determine whether a luma component and a chroma component of the current block have a same coding tree structure; and add the block vector associated with the neighboring candidate block to the candidate list based on a determination that the luma component and the chroma component have the same coding tree structure. ### Claim 7 (depends on 5) The video decoding apparatus according to claim 5, wherein the processing circuitry is configured to: reconstruct the current picture based on the at least one candidate from the candidate list. ### Claim 8 (depends on 5) The video decoding apparatus according to claim 5, wherein the candidate list is a merge candidate list, and the candidate block is a merge candidate. ### Claim 9 A method of processing visual media data, the method comprising: performing a conversion between a visual media file and a bitstream of visual media data according to a format rule, wherein the bitstream includes coding information of a current block, the coding information indicating that the current block is encoded in an intra-inter blending mode; the format rule specifies that a coding mode for a candidate block neighboring the current block is determined; the format rule specifies that, in response to (i) the determination that the current block is to be encoded in the intra-inter blending mode and (ii) the determined coding mode for the neighboring candidate block being an intra block copy mode, the neighboring candidate block is set as unavailable so that a block vector of the neighboring candidate block is not included in a candidate list; and the format rule specifies that the current block is encoded based on at least one candidate from the candidate list. ### Claim 10 (depends on 9) The method according to claim 9, further comprising: determining whether a luma component and a chroma component of the current block have a same coding tree structure; and adding the block vector associated with the neighboring candidate block to the candidate list based on a determination that the luma component and the chroma component have the same coding tree structure. ### Claim 11 (depends on 9) The method according to claim 9, further comprising: generating the bitstream based on the at least one candidate from the candidate list. ### Claim 12 (depends on 9) The method according to claim 9, wherein the candidate list is a merge candidate list, and the candidate block is a merge candidate.