THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE

    公开(公告)号:CA3090465A1

    公开(公告)日:2019-08-15

    申请号:CA3090465

    申请日:2019-02-07

    Abstract: This three-dimensional data encoding method encodes information of a target node contained in an N (where N is an integer at least equal to 2) tree structure of a plurality of three-dimensional points included in three-dimensional data, wherein, in the encoding, among a plurality of adjacent nodes spatially adjacent to the target node, reference to information of a first node having a parent node that is the same as that of the target node is allowed, and reference to information of a second node having a different parent node to that of the target node is prohibited. For example, in the three-dimensional data encoding method, a determination may additionally be performed to ascertain whether to prohibit reference to the information of the second node, and a bit stream including prohibition switching information, which is the result of the determination and indicates whether reference to the information of the second node is to be prohibited, may be generated.

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