DETERMINING SPARSE VERSUS DENSE PATTERN ILLUMINATION

    公开(公告)号:WO2019027506A1

    公开(公告)日:2019-02-07

    申请号:PCT/US2018/015594

    申请日:2018-01-26

    Applicant: APPLE INC.

    Abstract: An estimate of distance between a user and a camera on a device is used to determine an illumination pattern density used for speckle pattern illumination of the user in subsequent images. The distance may be estimated using an image captured when the user is illuminated with flood infrared illumination. Either a sparse speckle (dot) pattern illumination pattern or a dense speckle pattern illumination pattern is used depending on the distance between the user's face and the camera.

    DETERMINING SPARSE VERSUS DENSE PATTERN ILLUMINATION

    公开(公告)号:WO2019027506A9

    公开(公告)日:2019-02-07

    申请号:PCT/US2018/015594

    申请日:2018-01-26

    Applicant: APPLE INC.

    Abstract: An estimate of distance between a user and a camera on a device is used to determine an illumination pattern density used for speckle pattern illumination of the user in subsequent images. The distance may be estimated using an image captured when the user is illuminated with flood infrared illumination. Either a sparse speckle (dot) pattern illumination pattern or a dense speckle pattern illumination pattern is used depending on the distance between the user's face and the camera.

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