Three-dimensional data encoding method, three-dimensional data decoding method, three-dimensional data encoding device, and three-dimensional data decoding device

Abstract

Provided is a three-dimensional data encoding method capable of providing random access functionality for encoded three-dimensional data. The three-dimensional data encoding method is a three-dimensional data encoding method for encoding three-dimensional data, the method including: dividing the three-dimensional data into first processing units, each being a random access unit and being associated with three-dimensional coordinates; and encoding each of the first processing units to generate encoded three-dimensional data.

1 - 20 . (canceled) 
     
     
         21 . A three-dimensional data encoding method for encoding three-dimensional data, the three-dimensional data encoding method comprising:
 dividing the three-dimensional data into first processing units, each of the first processing units being associated with three-dimensional coordinates, and further dividing each of the first processing units into second processing units;   encoding each of the second processing units generated by dividing each of the first processing units, to generate encoded data; and   generating first information indicating the three-dimensional coordinates associated with each of the first processing units,   wherein the encoded data includes the first information.   
     
     
         22 . A three-dimensional data decoding method for decoding three-dimensional data, the three-dimensional data decoding method comprising:
 decoding encoded data to generate three-dimensional data of first processing units, the encoded data having been generated by encoding each of second processing units, the second processing units having been generated by dividing each of the first processing units, the first processing units each being associated with three dimensional coordinates; and   obtaining, from the encoded data, first information indicating the three-dimensional coordinates associated with each of the first processing units.   
     
     
         23 . A three-dimensional data encoding device that encodes three-dimensional data, the three-dimensional data encoding device comprising:
 a divider that divides the three-dimensional data into first processing units, each of the first processing units being associated with three-dimensional coordinates, and further divides each of the first processing units into second processing units;   an encoder that encodes each of the second processing units generated by dividing each of the first processing units, to generate encoded data; and   a generator that generates first information indicating the three-dimensional coordinates associated with each of the first processing units,   wherein the encoded data includes the first information.   
     
     
         24 . A three-dimensional data decoding device that decodes three-dimensional data, the three-dimensional data decoding device comprising:
 a decoder that decodes encoded data to generate three-dimensional data of first processing units, the encoded data having been generated by encoding each of second processing units, the second processing units having been generated by dividing each of the first processing units, the first processing units each being associated with three dimensional coordinates, wherein   the decoder obtains, from the encoded data, first information indicating the three-dimensional coordinates associated with each of the first processing units.