公开(公告)号：WO2021207510A1

公开(公告)日：2021-10-14

申请号：PCT/US2021/026407

申请日：2021-04-08

Applicant: QUALCOMM INCORPORATED

Inventor： RAY, Bappaditya ,  RAMASUBRAMONIAN, Adarsh Krishnan ,  KEROFSKY, Louis, Joseph ,  VAN DER AUWERA, Geert ,  KARCZEWICZ, Marta

IPC: H04N19/46 ,  H04N19/70 ,  H04N19/90 ,  H04N19/91 ,  G06T9/00

Abstract: An example device for processing point cloud data includes a memory configured to store the point cloud data and one or more processors implemented in circuitry and coupled to the memory. The one or more processors are configured to count a number of edges of a cube of point cloud data comprising a vertex. The one or more processors are configured to set a variable based on a total of the counting. The one or more processors are also configured to process the point cloud data based on the variable.

公开(公告)号：WO2021207376A1

公开(公告)日：2021-10-14

申请号：PCT/US2021/026207

申请日：2021-04-07

Applicant: QUALCOMM INCORPORATED

Inventor： RAY, Bappaditya ,  RAMASUBRAMONIAN, Adarsh Krishnan ,  KEROFSKY, Louis, Joseph ,  VAN DER AUWERA, Geert ,  KARCZEWICZ, Marta

IPC: H04N19/597 ,  G06T9/00 ,  H04N19/70

Abstract: A method for decoding point cloud data comprises, based on a comparison of a maximum difference value and a threshold, applying an inverse function to a set of one or more jointly coded values to recover (i) residual values for attribute values of a current point of point cloud data and (ii) a predictor index that indicates a predictor in a predictor list, wherein predictors in the predictor list are based on attribute values of one or more neighbor points; determining predicted attribute values based on the predictor index; and reconstructing the attribute values of the current point based on the residual values and the predicted attribute values.