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9 条记录 (耗时 0.019 秒)

    Point cloud annotation device, method, and program
    2.
    发明授权
    Point cloud annotation device, method, and program 有权

    公开(公告)号：US12106438B2

    公开(公告)日：2024-10-01

    申请号：US17608735

    申请日：2019-05-08

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Hitoshi Niigaki ,  Yasuhiro Yao ,  Shingo Ando ,  Kana Kurata ,  Atsushi Sagata

    IPC分类号： G06T19/00 ,  G06T7/00

    CPC分类号： G06T19/00 ,  G06T7/0002 ,  G06T2200/24 ,  G06T2207/10028 ,  G06T2207/20092 ,  G06T2210/56 ,  G06T2219/004

    摘要： Annotation can be easily performed on a three-dimensional point cloud and a working time can be reduced. An interface unit 22 displays a point cloud indicating a three-dimensional point on an object, and receives designation of a three-dimensional point indicating an annotation target object and designation of a three-dimensional point not indicating the annotation target object. A candidate cluster calculation unit 32 calculates a value of a predetermined evaluation function indicating a likelihood of a point cloud cluster being the annotation target object based on the designation of a three-dimensional point for point cloud clusters obtained by clustering the point clouds. A cluster selection and storage designation unit 34 causes the interface unit 22 to display the point cloud clusters in descending order of the value of the evaluation function, and receives a selection of a point cloud cluster to be annotated. An annotation execution unit 36 executes annotation indicating the annotation target object for each three-dimensional point included in the selected point cloud cluster.

    Detection device, detection method and detection program for linear structure
    5.
    发明授权
    Detection device, detection method and detection program for linear structure 有权

    公开(公告)号：US11823330B2

    公开(公告)日：2023-11-21

    申请号：US17634595

    申请日：2019-08-19

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Masaaki Inoue ,  Hitoshi Niigaki ,  Yukihiro Goto ,  Shigehiro Matsuda ,  Toshiya Ohira ,  Ryuji Honda ,  Tomoya Shimizu ,  Hiroyuki Oshida

    IPC分类号： G06T17/20 ,  G06F30/18 ,  G01B11/00

    CPC分类号： G06T17/20 ,  G01B11/002 ,  G06F30/18

    摘要： An object of the present disclosure is to provide a technique for creating a three-dimensional model of a line-like structure from a point cloud obtained using three-dimensional laser measuring equipment and detecting a three-dimensional model of a cable. A detection apparatus according to the disclosure includes a point cloud data input unit 12 that reads point cloud data where a structure that is present in a three-dimensional space is represented by a point cloud that is present in the three-dimensional space, a rule-based three-dimensional model generation unit 15 that combines linearly disposed point clouds into a group and generates a three-dimensional model of a line-like structure using a direction vector configured with point clouds included in the group, a machine learning-based three-dimensional model generation unit 14 that generates a three-dimensional model of a line-like structure based on a database that links point clouds and line-like structures, and a three-dimensional model merging unit that selects one of a plurality of three-dimensional models of line-like structures generated at an identical position in the three-dimensional space as a three-dimensional model of a line-like structure that is present in the three-dimensional space and merges three-dimensional models of the line-like structures that are present in the three-dimensional space.

    Depth superresolution device, depth superresolution method, and program
    7.
    发明授权
    Depth superresolution device, depth superresolution method, and program 有权

    公开(公告)号：US11900622B2

    公开(公告)日：2024-02-13

    申请号：US17425916

    申请日：2020-01-27

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Yasuhiro Yao ,  Shingo Ando ,  Kana Kurata ,  Hitoshi Niigaki ,  Atsushi Sagata

    IPC分类号： G06T7/50 ,  G06T3/40

    CPC分类号： G06T7/50 ,  G06T3/4046 ,  G06T2200/04 ,  G06T2207/20084

    摘要： Dense depth information can be generated using only a monocular image and sparse depth information.
    A depth hyper-resolving apparatus 100 includes: an input data processing unit 22 that outputs a hierarchical input image and hierarchical input depth information by resolution conversion in accordance with a predetermined number of tiers for an input image and input depth information; a depth continuity estimation unit 24 that derives hierarchical estimated depth continuity based on the hierarchical input image; a depth continuity mask deriving unit 26 that outputs a hierarchical depth continuity mask representing values of locations depending on whether a depth is continuous based on the hierarchical input image and the hierarchical estimated depth continuity; and a cost function minimization unit 30 that derives hyper-resolved depth information to minimize a cost function expressed by using the hierarchical input depth information, the hierarchical depth continuity mask, and the hyper-resolved depth information.