FIELD: decoding.
SUBSTANCE: method for decoding the geometry of a point cloud in a point cloud decoder includes receiving a bitstream including a slice of the encoded frame of the point cloud, and reconstructing the octree representing the geometry of points in the bounding box of the slice, wherein the current node of the octree is divided by a quadtree (QT)-based division or a binary tree (BT)-based division. The reconstruction (S1520) of the octree includes determining the value of a variable designated partitionSkip and indicating the type of division and the direction of division of the current node of the octree. When implicit QT or BT division is applied, the geometry of the point cloud can be implicitly divided by a subset of all dimensions if certain criteria are met, instead of always dividing by all dimensions.
EFFECT: ensured division of a quadtree or a binary tree.
20 cl, 39 tbl, 16 dwg
