THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, AND PROGRAM
To provide a three-dimensional data encoding method or the like capable of improving encoding efficiency.SOLUTION: Provided is a three-dimensional encoding method for encoding point cloud data indicating a plurality of three-dimensional positions in a three-dimensional space, including: moving the p...
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Zusammenfassung: | To provide a three-dimensional data encoding method or the like capable of improving encoding efficiency.SOLUTION: Provided is a three-dimensional encoding method for encoding point cloud data indicating a plurality of three-dimensional positions in a three-dimensional space, including: moving the point cloud data by a common movement amount (S6871); dividing the point cloud data into a plurality of sub point cloud datasets by dividing the three-dimensional space into a plurality of subspaces (S6872); moving each sub point cloud dataset by an individual movement amount based on a position of a subspace that includes the sub point cloud data for each of the plurality of sub point cloud data included in the point cloud data after being moved by the common movement amount (S6873); and generating a bit stream by encoding the plurality of sub point cloud datasets after the movement (S6874), wherein the bit stream includes common movement information for calculating a common movement amount and a plurality of pieces of individual movement information for respectively calculating a plurality of individual movement amounts by which the plurality of sub point cloud datasets are moved.SELECTED DRAWING: Figure 120
【課題】符号化効率を向上できる三次元データ符号化方法などを提供する。【解決手段】三次元空間における複数の三次元位置を示す点群データを符号化する三次元データ符号化方法であって、点群データを共通移動量だけ移動させ(S6871)、三次元空間を複数のサブ空間に分割することで、点群データを複数のサブ点群データに分割し(S6872)、共通移動量だけ移動した後の点群データに含まれる複数のサブ点群データのそれぞれについて、当該サブ点群データが含まれるサブ空間の位置に基づく個別移動量だけ当該サブ点群データを移動させ(S6873)、移動後の複数のサブ点群データを符号化することでビットストリームを生成し(S6874)、ビットストリームは、共通移動量を算出するための共通移動情報と、複数のサブ点群データを移動させた複数の個別移動量をそれぞれ算出するための複数の個別移動情報とを含む。【選択図】図120 |
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