Method and apparatus for selecting neighbor point in point cloud, encoder, and decoder

A computing device, comprising a processor and a memory, wherein

• the memory being configured to store computer-readable instructions;
• and
• the processor being configured to execute the computer-readable instructions to implement a method for selecting a neighbor point of a current point in a point cloud including:
• determining, from point cloud data, a target region where the current point is located, the target region comprising a plurality of points;
• determining, for at least two decoded target points in the target region, a weight coefficient of each of the at least two target points, the at least two target points not comprising the current point, wherein the weight coefficient is a preset fixed value;
• determining a weight of each of the at least two target points according to the weight coefficient and a distance between each of the at least two target points and the current point according to geometry information of each of the at least two target points and geometry information of the current point;
• and
• selecting at least one from the at least two target points according to the weight of each of the at least two target points as the neighbor point of the current point.

A non-transitory computer-readable storage medium storing computer-readable instructions that, when executed by a processor of a computer device, causes the computer device to implement a method for selecting a neighbor point of a current point in a point cloud including:

• determining, from point cloud data, a target region where the current point is located, the target region comprising a plurality of points;
• determining, for at least two decoded target points in the target region, a weight coefficient of each of the at least two target points, the at least two target points not comprising the current point, wherein the weight coefficient is a preset fixed value;
• determining a weight of each of the at least two target points according to the weight coefficient and a distance between each of the at least two target points and the current point according to geometry information of each of the at least two target points and geometry information of the current point;
• and
• selecting at least one from the at least two target points according to the weight of each of the at least two target points as the neighbor point of the current point.