Fast scanning LIDAR with dynamic voxel probing

    公开(公告)号:US10067230B2

    公开(公告)日:2018-09-04

    申请号:US15799149

    申请日:2017-10-31

    Abstract: A LIDAR system includes a scanner; a receiver; and one or more processor devices to perform actions, including: scanning a continuous light beam over the field of view in a first scan pass; detecting photons of the continuous light beam that are reflected from one or more objects; determining a coarse range to the one or more objects based on times of departure of the photons of the continuous light beam and times of arrival of the photons at the receiver; scanning light pulses over the field of view in a second scan pass; detecting photons from the light pulses that are reflected from the one or more objects; and determining a refined range to the one or more objects based on times of departure of the photons of the light pulses and times of arrival of the photons at the receiver.

    FAST SCANNING LIDAR WITH DYNAMIC VOXEL PROBING

    公开(公告)号:US20180120436A1

    公开(公告)日:2018-05-03

    申请号:US15799149

    申请日:2017-10-31

    Abstract: A LIDAR system includes a scanner; a receiver; and one or more processor devices to perform actions, including: scanning a continuous light beam over the field of view in a first scan pass; detecting photons of the continuous light beam that are reflected from one or more objects; determining a coarse range to the one or more objects based on times of departure of the photons of the continuous light beam and times of arrival of the photons at the receiver; scanning light pulses over the field of view in a second scan pass; detecting photons from the light pulses that are reflected from the one or more objects; and determining a refined range to the one or more objects based on times of departure of the photons of the light pulses and times of arrival of the photons at the receiver

    REAL TIME POSITION SENSING OF OBJECTS
    44.
    发明申请

    公开(公告)号:US20170176575A1

    公开(公告)日:2017-06-22

    申请号:US15384227

    申请日:2016-12-19

    CPC classification number: G01S7/484 G01S7/4808 G01S17/003 G01S17/10 G01S17/48

    Abstract: Embodiments are directed toward measuring a three dimensional range to a target. A transmitter emits light toward the target. An aperture may receive light reflections from the target. The aperture may direct the reflections toward a sensor that comprises rows of pixels that have columns. The sensor is offset a predetermined distance from the transmitter. Anticipated arrival times of the reflections on the sensor are based on the departure times and the predetermined offset distance. A portion of the pixels are sequentially activated based on the anticipated arrival times. The target's three dimensional range measurement is based on the reflections detected by the portion of the pixels.

    THREE-DIMENSIONAL TRIANGULATION AND TIME-OF-FLIGHT BASED TRACKING SYSTEMS AND METHODS
    45.
    发明申请
    THREE-DIMENSIONAL TRIANGULATION AND TIME-OF-FLIGHT BASED TRACKING SYSTEMS AND METHODS 审中-公开
    三维三角和基于时间的飞行跟踪系统及方法

    公开(公告)号:US20160306044A1

    公开(公告)日:2016-10-20

    申请号:US15194502

    申请日:2016-06-27

    Abstract: A three-dimension position tracking system is presented. The system includes transmitters and receivers. A transmitter scans continuous or pulsed coherent light beams across a target. The receiver detects the reflected beams. The system recursively determines the location of the target, as a function of time, via triangulation and observation of the time-of-flight of the incoming and outgoing beams. The transmitter includes ultra-fast scanning optics to scan the receiver's field-of-view. The receiver includes arrays of ultra-fast photosensitive pixels. The system determines the angles of the incoming beams based on the line-of-sight of the triggered pixels. By observing the incoming angles and correlating timestamps associated with the outgoing and incoming beams, the system accurately, and in near real-time, determines the location of the target. By combining the geometry of the scattered beams, as well as the beams' time-of-flight, ambiguities inherent to triangulation and ambiguities inherent to time-of-flight location methods are resolved.

    Abstract translation: 提出了三维位置跟踪系统。 该系统包括发射机和接收机。 发射器扫描目标上的连续或脉冲相干光束。 接收机检测反射光束。 系统通过三角测量和观察入射和射出射束的飞行时间,递归地确定目标的位置,作为时间的函数。 发射器包括超快速扫描光学元件,用于扫描接收机的视场。 接收机包括超快感光像素阵列。 系统基于触发像素的视线确定入射光束的角度。 通过观察入射角度和与出射光束和入射光束相关联的时间戳,系统准确地并且近乎实时地确定目标的位置。 通过组合散射光束的几何形状以及光束的飞行时间,解决了三维测量固有的模糊和飞行时间定位方法固有的模糊性。

    THREE-DIMENSIONAL TRIANGULATION AND TIME-OF-FLIGHT BASED TRACKING SYSTEMS AND METHODS

    公开(公告)号:US20160041266A1

    公开(公告)日:2016-02-11

    申请号:US14823668

    申请日:2015-08-11

    Abstract: A three-dimension position tracking system is presented. The system includes transmitters and receivers. A transmitter scans continuous or pulsed coherent light beams across a target. The receiver detects the reflected beams. The system recursively determines the location of the target, as a function of time, via triangulation and observation of the time-of-flight of the incoming and outgoing beams. The transmitter includes ultra-fast scanning optics to scan the receiver's field-of-view. The receiver includes arrays of ultra-fast photosensitive pixels. The system determines the angles of the incoming beams based on the line-of-sight of the triggered pixels. By observing the incoming angles and correlating timestamps associated with the outgoing and incoming beams, the system accurately, and in near real-time, determines the location of the target. By combining the geometry of the scattered beams, as well as the beams' time-of-flight, ambiguities inherent to triangulation and ambiguities inherent to time-of-flight location methods are resolved.

    Method, apparatus, and manufacture for a tracking camera or detector with fast asynchronous triggering
    47.
    发明授权
    Method, apparatus, and manufacture for a tracking camera or detector with fast asynchronous triggering 有权
    用于具有快速异步触发的跟踪相机或检测器的方法,设备和制造

    公开(公告)号:US08696141B2

    公开(公告)日:2014-04-15

    申请号:US13858762

    申请日:2013-04-08

    Abstract: An image projection device for displaying an image onto a remote surface. The image projection device employs a scanner to project image beams of visible light and tracer beams of light onto a remote surface to form a display of the image. The device also employs a light detector to sense at least the reflections of light from the tracer beam pulses incident on the remote surface. The device employs the sensed tracer beam light pulses to predict the trajectory of subsequent image beam light pulses and tracer beam light pulses that form a display of the image on the remote surface in a pseudo random pattern. The trajectory of the projected image beam light pulses can be predicted so that the image is displayed from a point of view that can be selected by, or automatically adjusted for, a viewer of the displayed image.

    Abstract translation: 一种用于将图像显示在远程表面上的图像投影装置。 图像投影装置使用扫描仪将可见光和示踪光束的图像投影到远程表面上以形成图像的显示。 该装置还使用光检测器来感测来自入射在远程表面上的示踪光束脉冲的光的至少反射。 该装置采用所感测的示踪光束光脉冲来预测随后的图像束光脉冲和示踪光束光脉冲的轨迹,其以伪随机图案在远程表面上形成图像的显示。 可以预测投影图像束光脉冲的轨迹,使得从可以通过显示图像的观看者选择或自动调整的观点来显示图像。

    SYSTEM AND METHOD FOR 3-D PROJECTION AND ENHANCEMENTS FOR INTERACTIVITY
    48.
    发明申请
    SYSTEM AND METHOD FOR 3-D PROJECTION AND ENHANCEMENTS FOR INTERACTIVITY 审中-公开
    用于三维投影和互动增强的系统和方法

    公开(公告)号:US20130300637A1

    公开(公告)日:2013-11-14

    申请号:US13877652

    申请日:2011-10-04

    Abstract: A system projects a user-viewable, computer-generated or -fed image, wherein a head-mounted projector is used to project an image onto a retro-reflective surface, so only the viewer can see the image. The projector is connected to a computer that contains software to create virtual 2-D and or 3-D images for viewing by the user! Further, on projector each is mounted on either side of the user's head, and, by choosing for example a retro angle of less than about 10 degrees, each eye can only see the image of one of the projectors at a give distance up to 3 meters, in this example, from the retro-reflective screen. The retro angle used may be reduced with larger viewing distance desired. These projectors use lasers to avoid the need for focusing, and in some cases there projectors use instead of lasers highly collimated LEO light sources to avoid the need for focusing.

    Abstract translation: 系统投射用户可观看的计算机生成的图像,其中使用头戴式投影机将图像投影到反光表面上,因此只有观看者可以看到图像。 投影机连接到包含软件的计算机,以创建虚拟2​​-D或3-D图像供用户观看! 此外,在投影仪上,每个投影机都安装在用户头部的任一侧,并且通过选择例如小于约10度的复古角度,每只眼睛只能以给定距离直到3观看投影机之一的图像 在这个例子中,它是从逆反射屏幕。 所使用的倒角可以随着所需的更大的观察距离而减小。 这些投影机使用激光器来避免聚焦的需要,在某些情况下,投影机使用高精度的LEO光源来避免激光的聚焦。

    Photonjet scanner projector
    49.
    发明授权
    Photonjet scanner projector 有权
    Photonjet扫描仪投影机

    公开(公告)号:US08430512B2

    公开(公告)日:2013-04-30

    申请号:US13605948

    申请日:2012-09-06

    Abstract: An image projection device for displaying an image onto a remote surface. The image projection device employs a scanner to project image beams of visible light and tracer beams of light onto a remote surface to form a display of the image. The device also employs a light detector to sense at least the reflections of light from the tracer beam pulses incident on the remote surface. The device employs the sensed tracer beam light pulses to predict the trajectory of subsequent image beam light pulses and tracer beam light pulses that form a display of the image on the remote surface in a pseudo random pattern. The trajectory of the projected image beam light pulses can be predicted so that the image is displayed from a point of view that can be selected by, or automatically adjusted for, a viewer of the displayed image.

    Abstract translation: 一种用于将图像显示在远程表面上的图像投影装置。 图像投影装置使用扫描仪将可见光和示踪光束的图像投影到远程表面上以形成图像的显示。 该装置还使用光检测器来感测来自入射在远程表面上的示踪光束脉冲的光的至少反射。 该装置采用所感测的示踪光束光脉冲来预测随后的图像束光脉冲和示踪光束光脉冲的轨迹,其以伪随机图案在远程表面上形成图像的显示。 可以预测投影图像束光脉冲的轨迹,使得从可以通过显示图像的观看者选择或自动调整的观点来显示图像。

    Image projector with reflected light tracking
    50.
    发明授权
    Image projector with reflected light tracking 有权
    图像投影机与反射光跟踪

    公开(公告)号:US08282222B2

    公开(公告)日:2012-10-09

    申请号:US12249899

    申请日:2008-10-10

    Abstract: An image projection device for displaying an image onto a remote surface. The image projection device employs a scanner to project image beams of visible light and tracer beams of light onto a remote surface to form a display of the image. The device also employs a light detector to sense at least the reflections of light from the tracer beam pulses incident on the remote surface. The device employs the sensed tracer beam light pulses to predict the trajectory of subsequent image beam light pulses and tracer beam light pulses that form a display of the image on the remote surface in a pseudo random pattern. The trajectory of the projected image beam light pulses can be predicted so that the image is displayed from a point of view that can be selected by, or automatically adjusted for, a viewer of the displayed image.

    Abstract translation: 一种用于将图像显示在远程表面上的图像投影装置。 图像投影装置使用扫描仪将可见光和示踪光束的图像投影到远程表面上以形成图像的显示。 该装置还使用光检测器来感测来自入射在远程表面上的示踪光束脉冲的光的至少反射。 该装置采用所感测的示踪光束光脉冲来预测随后的图像束光脉冲和示踪光束光脉冲的轨迹,其以伪随机图案在远程表面上形成图像的显示。 可以预测投影图像束光脉冲的轨迹,使得从可以通过显示图像的观看者选择或自动调整的观点来显示图像。

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