CPC G06T 9/00 (2013.01) [G06T 3/40 (2013.01); G06T 19/20 (2013.01); G06T 2210/56 (2013.01); G06T 2219/2012 (2013.01); H04N 19/597 (2014.11)] | 20 Claims |
1. A method for coding attribute information of a point cloud, the method performed by at least one processor and comprising:
obtaining the point cloud including a set of points in a three-dimensional space; and
coding the attribute information of at least one point of the point cloud using a YCoCg-R transform as a lossless inloop transform of prediction residuals of the at least one point and based on determining to use the lossless inloop transform of prediction residuals of the at least one point by a conditional check comprising at least one of:
determining whether a number of neighboring points to the at least one point experience any of reduced residual magnitude and reduced residual variance by application of the YCoCg-R transform as the lossless inloop transform of prediction residuals to ones of the neighboring points,
determining a maximum absolute difference in channel values of the neighboring points, and
determining interchannel correlation from the neighboring points.
|