METHOD AND SYSTEM FOR MEASURING PERIODONTAL POCKET DEPTH

    公开(公告)号:US20220008180A1

    公开(公告)日:2022-01-13

    申请号:US17289938

    申请日:2019-10-31

    Applicant: 3SHAPE A/S

    Abstract: A system for measuring a depth of a periodontal pocket defined by a gap between a tooth and gingiva includes a frame, one camera, and a processor. The frame is configured to be worn by a user. The camera is configured to capture at least one 2D image of an intraoral target area. The at least one 2D image includes a representation of at least a part of the tooth, a gingiva margin defined by a section of the gingiva adjacent to the at least a part of the tooth, and a probe tip when the probe tip is inserted into the periodontal pocket. The processor is configured to receive the captured at least one 2D image and to determine an insertion length of the probe tip in the periodontal pocket. The determined insertion length represents the depth of the periodontal pocket.

    FOCUS SCANNING APPARATUS
    33.
    发明申请

    公开(公告)号:US20210306617A1

    公开(公告)日:2021-09-30

    申请号:US17340806

    申请日:2021-06-07

    Applicant: 3SHAPE A/S

    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

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