Pose estimation with limited correspondences

    公开(公告)号:US11935264B2

    公开(公告)日:2024-03-19

    申请号:US17705725

    申请日:2022-03-28

    Applicant: Apple Inc.

    CPC classification number: G06T7/73 G01V7/00

    Abstract: Various implementations disclosed herein include devices, systems, and methods for pose estimation using one point correspondence, one line correspondence, and a directional measurement. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes obtaining an image corresponding to a physical environment. A first correspondence between a first set of pixels in the image and a spatial point in the physical environment is determined. A second correspondence between a second set of pixels in the image and a spatial line in the physical environment is determined. Pose information is generated as a function of the first correspondence, the second correspondence, and a directional measurement.

    Normal estimation for a planar surface

    公开(公告)号:US11967146B2

    公开(公告)日:2024-04-23

    申请号:US18099600

    申请日:2023-01-20

    Applicant: Apple Inc.

    CPC classification number: G06V20/00 G01V7/00 G06T7/73

    Abstract: Various implementations disclosed herein include devices, systems, and methods for normal estimation using a directional measurement, such as a gravity vector. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes identifying planar surfaces in an environment represented by an image. Each planar surface is associated with a respective orientation. A directional vector associated with the environment is determined. A subset of the planar surfaces that have a threshold orientation relative to the directional vector is identified. For each planar surface in the subset of the planar surfaces, a normal vector for the planar surface is determined based on the orientation of the planar surface and the directional vector.

    NORMAL ESTIMATION FOR A PLANAR SURFACE
    4.
    发明公开

    公开(公告)号:US20230334847A1

    公开(公告)日:2023-10-19

    申请号:US18099600

    申请日:2023-01-20

    Applicant: Apple Inc.

    CPC classification number: G06V20/00 G01V7/00 G06T7/73

    Abstract: Various implementations disclosed herein include devices, systems, and methods for normal estimation using a directional measurement, such as a gravity vector. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes identifying planar surfaces in an environment represented by an image. Each planar surface is associated with a respective orientation. A directional vector associated with the environment is determined. A subset of the planar surfaces that have a threshold orientation relative to the directional vector is identified. For each planar surface in the subset of the planar surfaces, a normal vector for the planar surface is determined based on the orientation of the planar surface and the directional vector.

    Branch-and-bound search algorithm for 4D camera localization

    公开(公告)号:US11430206B1

    公开(公告)日:2022-08-30

    申请号:US16829300

    申请日:2020-03-25

    Applicant: Apple Inc.

    Abstract: In some implementations, a method includes: extracting key-points from a reference image associated with a scene; generating a multi-cone structure including cones based on the key-points and intrinsic parameters, wherein an apex of the cones corresponds to a camera origin point associated with the reference image, and wherein each axis of the cones intersects a respective key-point; aligning the multi-cone structure based on a nominal alignment vector in order to restrict two rotational degrees of freedom; and determining a rigid transformation for the multi-cone structure, including a value for a remaining rotational degree of freedom and values for three translational degrees of freedom, within a search space associated with the scene, wherein a number of the cones within the multi-cone structure that include at least one point in a three-dimensional (3D) point cloud associated with the scene is maximal when the multi-cone structure is transformed by the rigid transformation.

    Normal estimation for a planar surface

    公开(公告)号:US11562560B1

    公开(公告)日:2023-01-24

    申请号:US17148789

    申请日:2021-01-14

    Applicant: Apple Inc.

    Abstract: Various implementations disclosed herein include devices, systems, and methods for normal estimation using a directional measurement, such as a gravity vector. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes identifying planar surfaces in an environment represented by an image. Each planar surface is associated with a respective orientation. A directional vector associated with the environment is determined. A subset of the planar surfaces that have a threshold orientation relative to the directional vector is identified. For each planar surface in the subset of the planar surfaces, a normal vector for the planar surface is determined based on the orientation of the planar surface and the directional vector.

    POSE ESTIMATION WITH LIMITED CORRESPONDENCES

    公开(公告)号:US20220222848A1

    公开(公告)日:2022-07-14

    申请号:US17705725

    申请日:2022-03-28

    Applicant: Apple Inc.

    Abstract: Various implementations disclosed herein include devices, systems, and methods for pose estimation using one point correspondence, one line correspondence, and a directional measurement. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes obtaining an image corresponding to a physical environment. A first correspondence between a first set of pixels in the image and a spatial point in the physical environment is determined. A second correspondence between a second set of pixels in the image and a spatial line in the physical environment is determined. Pose information is generated as a function of the first correspondence, the second correspondence, and a directional measurement.

    Pose estimation with limited correspondences

    公开(公告)号:US11315280B1

    公开(公告)日:2022-04-26

    申请号:US16935645

    申请日:2020-07-22

    Applicant: Apple Inc.

    Abstract: Various implementations disclosed herein include devices, systems, and methods for pose estimation using one point correspondence, one line correspondence, and a directional measurement. In various implementations, a device includes a non-transitory memory and one or more processors coupled with the non-transitory memory. In some implementations, a method includes obtaining an image corresponding to a physical environment. A first correspondence between a first set of pixels in the image and a spatial point in the physical environment is determined. A second correspondence between a second set of pixels in the image and a spatial line in the physical environment is determined. Pose information is generated as a function of the first correspondence, the second correspondence, and a directional measurement.

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