公开(公告)号：US12231648B2

公开(公告)日：2025-02-18

申请号：US18417274

申请日：2024-01-19

Applicant: InterDigital VC Holdings, Inc.

Inventor： Saurav Bandyopadhyay ,  Xiaoyu Xiu ,  Yuwen He

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to improved linear model estimation for template-based video coding are provided. Included therein is a method comprising determining minimum and maximum (“min/max”) values of luma and chroma samples neighboring a coding block, wherein the min/max chroma values correspond to the min/max luma values; determining a first linear model parameter of a template-based video coding technique (i) based on a single look-up table and the min/max chroma values and (ii) at a precision no greater than 16 bits; determining a second linear model parameter of the template-based video coding technique (i) based on the first linear model parameter and the minimum chroma and luma values and (ii) at a precision no greater than 16 bits; and predicting chroma samples of the coding block based on reconstructed luma samples of the coding block and the first and second linear model parameters.