FIELD: physics.
SUBSTANCE: invention relates to the field of encoding/decoding the location of attributes of points in a point cloud. Method of encoding a point cloud into a bit stream of encoded data of a point cloud captured by a rotating measuring head, wherein each point in the point cloud corresponds to spherical coordinates and at least one attribute, wherein the coordinates represent an azimuthal angle corresponding to the gripping angle of the sensor of the rotating measuring head which has captured the point, the elevation angle corresponding to the elevation angle of the sensor which has captured the point, and the radius depending on the distance to the point from the origin of coordinates, wherein the method includes: signalling in a bit stream; for each current point in the point cloud: encoding the spherical coordinates of the current point and adding the encoded spherical coordinates of the current point to the bitstream; obtaining decoded spherical coordinates by decoding the coordinates of the current point, scaling the decoded spherical coordinates and adding at least one coded attribute to the bit stream.
EFFECT: high accuracy and efficiency of encoding/decoding data captured by a rotating measuring head.
12 cl, 9 dwg
