CPC G06T 9/00 (2013.01) | 16 Claims |
1. A three-dimensional data encoding method, comprising:
generating predicted position information using position information on three-dimensional points included in three-dimensional reference data associated with a time different from a time associated with current three-dimensional data; and
encoding position information on three-dimensional points included in the current three-dimensional data, using the predicted position information,
wherein in the generating of the predicted position information, the predicted position information is generated by applying (i) a first process including at least one of rotation and translation to the position information on the three-dimensional points included in the three-dimensional reference data, and (ii) a second process including at least one of rotation and translation to the position information on the three-dimensional points obtained through the first process, the first process using a first unit and the second process using a second unit that is smaller than the first unit, and
the first unit is a space having a cube structure, and the second unit is a volume from among a plurality of volumes obtained by subdividing the space and having a cube structure.
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