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    OPTICAL SYSTEM FOR COLLECTING DISTANCE INFORMATION WITHIN A FIELD
    52.
    发明申请
    OPTICAL SYSTEM FOR COLLECTING DISTANCE INFORMATION WITHIN A FIELD 审中-公开

    公开(公告)号：US20190018111A1

    公开(公告)日：2019-01-17

    申请号：US16123988

    申请日：2018-09-06

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark FRICHTL ,  Marvin SHU ,  Eric YOUNGE

    IPC: G01S7/481 ,  G01S17/89 ,  G01S17/08

    Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.

    Accurate photo detector measurements for LIDAR
    56.
    发明授权
    Accurate photo detector measurements for LIDAR 有权

    公开(公告)号：US12153134B2

    公开(公告)日：2024-11-26

    申请号：US18362775

    申请日：2023-07-31

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl

    IPC: G01S17/00 ,  G01S7/481 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  H01L27/146 ,  H01L31/107

    Abstract: A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.

    Optical system for collecting distance information within a field
    57.
    发明授权
    Optical system for collecting distance information within a field 有权

    公开(公告)号：US12140704B2

    公开(公告)日：2024-11-12

    申请号：US17820500

    申请日：2022-08-17

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Mark Frichtl ,  Marvin Shu ,  Eric Younge

    IPC: G01C3/08 ,  G01S7/481 ,  G01S17/08 ,  G01S17/89

    Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a first transmitting optic, a plurality of illumination sources, a pixel array comprising at least a first column of pixels and a second column of pixels, each pixel in the first column of pixels being offset from an adjacent pixel in the first column of pixels by a first pixel pitch, the second column of pixels being horizontally offset from the first column of pixels by the first pixel pitch, the second column of pixels being vertically offset from the first column of pixels by a first vertical pitch; and a set of input channels interposed between the first transmitting optic and the pixel array.

    Stereoscopic image capturing systems
    58.
    发明授权
    Stereoscopic image capturing systems 有权

    公开(公告)号：US11695911B2

    公开(公告)日：2023-07-04

    申请号：US17229671

    申请日：2021-04-13

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala

    IPC: H04N13/25 ,  G01S17/894 ,  G01S17/86 ,  G01S17/10 ,  H04N13/243 ,  H04N13/296 ,  H04N13/254 ,  H04N23/58 ,  H04N13/00

    CPC classification number: H04N13/25 ,  G01S17/10 ,  G01S17/86 ,  G01S17/894 ,  H04N13/243 ,  H04N13/254 ,  H04N13/296 ,  H04N23/58 ,  H04N2013/0081

    Abstract: A stereoscopic imager system, comprising: a sensor array comprising a first plurality of photosensors and a second plurality of photosensors spaced apart from the first plurality of photosensors by a gap, the first plurality of photosensors and the second plurality of photosensors being configured to detect ambient light in a scene; a moving component coupled to the sensor array and operable to move the sensor array between a first position and a second position within a full rotational image capturing cycle; and a system controller coupled to the sensor array and the moving component. The system controller can be configured to: move a field of view of a sensor array by instructing the moving component to capture a first image of an object in the scene with the first plurality of photosensors from a first perspective at the first position, and to capture a second image of the scene of the object in the scene with the second plurality of photosensors from a second perspective at the second position; and calculate, based on the first image and the second image, a distance to the object using an optical baseline defined by the gap.

    PROCESSING SYSTEM FOR LIDAR MEASUREMENTS
    59.
    发明公开
    PROCESSING SYSTEM FOR LIDAR MEASUREMENTS 审中-公开

    公开(公告)号：US20230176223A1

    公开(公告)日：2023-06-08

    申请号：US17496583

    申请日：2020-08-05

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala ,  Marvin Shu

    IPC: G01S17/894 ,  G01S7/487 ,  G01S7/4865

    CPC classification number: G01S17/894 ,  G01S7/487 ,  G01S7/4865 ,  G01S17/931

    Abstract: An optical measurement system may improve the accuracy with which it estimates distances to surrounding objects by upgrading various aspects of its data path. Spatial resolution may be increased by subdividing histogram buckets or integration registers based on spatial location. Saturation at any point in the data path can be detected and used to stop counting photons in individual pixels, which can then be normalized after a measurement is over. Multiple peaks can be detected using recursive or iterative techniques to identify a largest remaining peak at each stage. Instead of iterating through the histogram memory multiple times, a threshold can be pre-calculated based on an estimated ambient noise level, and peaks can be detected in a single pass.

    Processing of LIDAR images
    60.
    发明授权
    Processing of LIDAR images 有权

    公开(公告)号：US11624835B2

    公开(公告)日：2023-04-11

    申请号：US17599805

    申请日：2020-09-08

    Applicant: Ouster, Inc.

    Inventor： Angus Pacala

    IPC: G01S17/894 ,  G06T7/55 ,  G06T7/521 ,  G06T7/246 ,  G01B11/22 ,  G01S7/481 ,  G01S7/4865

    Abstract: Systems and methods are provided for processing lidar data. The lidar data can be obtained in a particular manner that allows reconstruction of rectilinear images for which image processing can be applied from image to image. For instance, kernel-based image processing techniques can be used. Such processing techniques can use neighboring lidar and/or associated color pixels to adjust various values associated with the lidar signals. Such image processing of lidar and color pixels can be performed by dedicated circuitry, which may be on a same integrated circuit. Further, lidar pixels can be correlated to each other. For instance, classification techniques can identify lidar and/or associated color pixels as corresponding to the same object. The classification can be performed by an artificial intelligence (AI) coprocessor. Image processing techniques and classification techniques can be combined into a single system.

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