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    Smart pulsing in regions of interest in scanned beam 3D sensing systems
    2.
    发明授权
    Smart pulsing in regions of interest in scanned beam 3D sensing systems 有权

    公开(公告)号：US10474248B2

    公开(公告)日：2019-11-12

    申请号：US15894708

    申请日：2018-02-12

    Applicant: Microvision, Inc.

    Inventor： P. Selvan Viswanathan ,  Jari Honkanen

    IPC: G06F3/03 ,  G01S17/10 ,  G06K9/00 ,  G06F3/01

    Abstract: A scanned beam 3D sensing system includes smart infrared pulsing to detect objects in a field of view. Infrared laser light pulses are emitted at a first density in a field of view and reflections are detected. Times of flight of the infrared laser light pulses are measured to determine if an object is in the field of view. The density of the infrared pulses may be increased based on various factors. The higher density infrared pulses may be scanned in a region of interest that is a subset of the field of view. Power consumption is reduced by reducing the density of laser pulses when possible.

    Smart Pulsing in Regions of Interest in Scanned Beam 3D Sensing Systems
    3.
    发明申请
    Smart Pulsing in Regions of Interest in Scanned Beam 3D Sensing Systems 审中-公开

    公开(公告)号：US20190250721A1

    公开(公告)日：2019-08-15

    申请号：US15894708

    申请日：2018-02-12

    Applicant: Microvision, Inc.

    Inventor： P. Selvan Viswanathan ,  Jari Honkanen

    IPC: G06F3/03 ,  G01S17/10 ,  G06K9/00

    Abstract: A scanned beam 3D sensing system includes smart infrared pulsing to detect objects in a field of view. Infrared laser light pulses are emitted at a first density in a field of view and reflections are detected. Times of flight of the infrared laser light pulses are measured to determine if an object is in the field of view. The density of the infrared pulses may be increased based on various factors. The higher density infrared pulses may be scanned in a region of interest that is a subset of the field of view. Power consumption is reduced by reducing the density of laser pulses when possible.

    Devices and Methods for Providing Foveated Scanning Laser Image Projection with Depth Mapping
    4.
    发明申请
    Devices and Methods for Providing Foveated Scanning Laser Image Projection with Depth Mapping 审中-公开

    公开(公告)号：US20180176551A1

    公开(公告)日：2018-06-21

    申请号：US15386576

    申请日：2016-12-21

    Applicant: Microvision, Inc.

    Inventor： P. Selvan Viswanathan ,  Jari Honkanen ,  Douglas R. Wade ,  Bin Xue

    IPC: H04N13/04 ,  H04N13/00 ,  H04N9/31

    CPC classification number: H04N13/388 ,  G01B11/25 ,  H04N9/3161 ,  H04N13/128 ,  H04N13/324

    Abstract: Devices and methods are described herein for providing foveated image projection. In general, at least one source of laser light is used to generate a laser beam, and scanning mirror(s) that reflect the laser beam into a pattern of scan lines. The source of light is controlled to selectively generate projected image pixels during a first portion of the pattern of scan lines, and to selectively generate depth mapping pulses during a second portion of the pattern of scan lines. The projected image pixels generate a projected image, while the depth mapping pulses are reflected from the surface, received, and used to generate a 3-dimensional point clouds that describe the measured surface depth at each point. Thus, during each scan of the pattern both a projected image and a surface depth map can be generated, with the surface depth map used to modify some portion of the projected pixels.

    Devices and methods for adjustable resolution depth mapping
    5.
    发明授权
    Devices and methods for adjustable resolution depth mapping 有权

    公开(公告)号：US09921056B2

    公开(公告)日：2018-03-20

    申请号：US15661270

    申请日：2017-07-27

    Applicant: Microvision, Inc.

    Inventor： Jari Honkanen ,  P. Selvan Viswanathan

    IPC: G01J5/02 ,  G01B11/25 ,  G01B11/22

    CPC classification number: G01B11/2518 ,  G01S7/4817 ,  G01S7/4863 ,  G01S17/08 ,  G01S17/89

    Abstract: Devices and methods are described that provide for scanning surfaces and generating 3-dimensional point clouds that describe the depth of the measured surface at each point. In general, the devices and methods utilize scanning mirror(s) that reflect a laser beam into a pattern of scan lines. When the raster pattern of scan lines is directed at a surface, reflections of the laser beam from the surface are received and used to the generate 3-dimensional point clouds that describe the measured surface depth at each point. The motion of the scanning mirror(s) can be dynamically adjusted to modify the characteristics of the resulting 3-dimensional point cloud of the surface. For example, the adjustment of the scanning mirror motion can modify the resolution or data density of the resulting 3-dimensional point cloud that describes the measured depths of the surface.

    Devices and Methods for Adjustable Resolution Depth Mapping
    9.
    发明申请
    Devices and Methods for Adjustable Resolution Depth Mapping 有权

    公开(公告)号：US20180045509A1

    公开(公告)日：2018-02-15

    申请号：US15661270

    申请日：2017-07-27

    Applicant: Microvision, Inc.

    Inventor： Jari Honkanen ,  P. Selvan Viswanathan

    IPC: G01B11/25 ,  G01B11/22

    CPC classification number: G01B11/2518 ,  G01S7/4817 ,  G01S7/4863 ,  G01S17/08 ,  G01S17/89

    Abstract: Devices and methods are described that provide for scanning surfaces and generating 3-dimensional point clouds that describe the depth of the measured surface at each point. In general, the devices and methods utilize scanning mirror(s) that reflect a laser beam into a pattern of scan lines. When the raster pattern of scan lines is directed at a surface, reflections of the laser beam from the surface are received and used to the generate 3-dimensional point clouds that describe the measured surface depth at each point. The motion of the scanning mirror(s) can be dynamically adjusted to modify the characteristics of the resulting 3-dimensional point cloud of the surface. For example, the adjustment of the scanning mirror motion can modify the resolution or data density of the resulting 3-dimensional point cloud that describes the measured depths of the surface.

    Devices and methods for adjustable resolution depth mapping
    10.
    发明授权
    Devices and methods for adjustable resolution depth mapping 有权

    公开(公告)号：US09766060B1

    公开(公告)日：2017-09-19

    申请号：US15236067

    申请日：2016-08-12

    Applicant: Microvision, Inc.

    Inventor： Jari Honkanen ,  P. Selvan Viswanathan

    IPC: G01J5/02 ,  G01B11/25 ,  G01B11/22

    CPC classification number: G01B11/2518 ,  G01S7/4817 ,  G01S7/4863 ,  G01S17/08 ,  G01S17/89

    Abstract: Devices and methods are described that provide for scanning surfaces and generating 3-dimensional point clouds that describe the depth of the measured surface at each point. In general, the devices and methods utilize scanning mirror(s) that reflect a laser beam into a pattern of scan lines. When the raster pattern of scan lines is directed at a surface, reflections of the laser beam from the surface are received and used to the generate 3-dimensional point clouds that describe the measured surface depth at each point. The motion of the scanning mirror(s) can be dynamically adjusted to modify the characteristics of the resulting 3-dimensional point cloud of the surface. For example, the adjustment of the scanning mirror motion can modify the resolution or data density of the resulting 3-dimensional point cloud that describes the measured depths of the surface.

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