Title:
CHANGE DETECTION METHOD, CHANGE DETECTION SYSTEM, AND CHANGE DETECTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/084601
Kind Code:
A1
Abstract:
In one aspect, a change detection apparatus (10) according to the present embodiment includes: a first feature calculation unit (11) that calculates a first feature of first coordinates in a first point cloud by using information about the presence of a point in each of a plurality of first subregions in a first region which is formed from the first subregions and which contains the first coordinates; a second feature calculation unit (12) that calculates a second feature of second coordinates in a second point cloud, the second coordinates corresponding to the first coordinates, using information indicating whether a point is present, a point is absent, or the presence of a point is indeterminate in each of a plurality of second subregions in a second region which is formed from the second subregions and which contains the second coordinates; and a determination unit (13) that uses the first and second features to determine whether or not a change in the presence or absence of a point has occurred between the first coordinates and the second coordinates.
Inventors:
FUJIWAKA MASAYA (JP)
Application Number:
PCT/JP2022/038830
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01V8/10; G01B11/00; G01S17/89; G06T7/00
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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