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公开(公告)号：US10809359B2
公开(公告)日：2020-10-20
申请号：US16123988
申请日：2018-09-06
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Mark Frichtl , Marvin Shu , Eric Younge
Abstract: Optical systems and methods for collecting distance information are disclosed. An example optical system includes a bulk receiving 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 bulk receiving optic and the pixel array.
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公开(公告)号：US10732032B2
公开(公告)日：2020-08-04
申请号：US16534910
申请日：2019-08-07
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Mark Frichtl
Abstract: A multispectral sensor array can include a combination of ranging sensor channels (e.g., LIDAR sensor channels) and ambient-light sensor channels tuned to detect ambient light having a channel-specific property (e.g., color). The sensor channels can be arranged and spaced to provide multispectral images of a field of view in which the multispectral images from different sensors are inherently aligned with each other to define an array of multispectral image pixels. Various optical elements can be provided to facilitate imaging operations. Light ranging/imaging systems incorporating multispectral sensor arrays can operate in rotating and/or static modes.
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公开(公告)号：US20180299552A1
公开(公告)日：2018-10-18
申请号：US16006331
申请日：2018-06-12
Applicant: Ouster, Inc.
Inventor： Marvin Shu , Angus Pacala , Mark Frichtl
IPC: G01S17/10 , H01L27/146 , H01L31/107
CPC classification number: G01S17/10 , G01S7/4816 , G01S7/4863 , G01S7/4865 , G01S7/497 , G01S17/42 , G01S17/89 , H01L27/14643 , 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.
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公开(公告)号：US20250138193A1
公开(公告)日：2025-05-01
申请号：US19008258
申请日：2025-01-02
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Marvin Shu
IPC: G01S17/894 , G01S7/4865 , G01S7/487 , 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.
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公开(公告)号：US12200183B2
公开(公告)日：2025-01-14
申请号：US18613587
申请日：2024-03-22
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Mark Frichtl
Abstract: An optical system for collecting distance information within a field is provided. The optical system may include lenses for collecting photons from a field and may include lenses for distributing photons to a field. The optical system may include lens tubes that collimate collected photons, optical filters that reject normally incident light outside of the operating wavelength, and pixels that detect incident photons. The optical system may further include illumination sources that output photons at an operating wavelength.
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Patent Agency Ranking
公开(公告)号：US20230213656A1
公开(公告)日：2023-07-06
申请号：US18176851
申请日：2023-03-01
Applicant: Ouster, Inc.
Inventor： Angus Pacala
IPC: G01S17/894 , G06T7/55 , G06T7/521 , G06T7/246 , G01B11/22 , G01S7/481 , G01S7/4865
CPC classification number: G01S17/894 , G06T7/55 , G06T7/521 , G06T7/248 , G01B11/22 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4865 , G06T2207/10028
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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公开(公告)号：US11473970B2
公开(公告)日：2022-10-18
申请号：US16534895
申请日：2019-08-07
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Mark Frichtl
IPC: G01J1/42 , G01J3/51 , G01J3/02 , G01S17/89 , G01S7/481 , G01S17/86 , G01J3/46 , G01S17/931 , G01S7/4863 , G01S7/4865 , H01L31/02 , G01S17/88
Abstract: A multispectral sensor array can include a combination of ranging sensor channels (e.g., LIDAR sensor channels) and ambient-light sensor channels tuned to detect ambient light having a channel-specific property (e.g., color). The sensor channels can be arranged and spaced to provide multispectral images of a field of view in which the multispectral images from different sensors are inherently aligned with each other to define an array of multispectral image pixels. Various optical elements can be provided to facilitate imaging operations. Light ranging/imaging systems incorporating multispectral sensor arrays can operate in rotating and/or static modes.
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公开(公告)号：US20220291387A1
公开(公告)日：2022-09-15
申请号：US17599805
申请日：2020-09-08
Applicant: Ouster, Inc.
Inventor： Angus Pacala
IPC: G01S17/894 , G01S7/481 , G01B11/22 , G01S7/4865 , G06T7/521 , G06T7/55 , G06T7/246
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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公开(公告)号：US20220120906A1
公开(公告)日：2022-04-21
申请号：US17473736
申请日：2021-09-13
Applicant: Ouster, Inc.
Inventor： Angus Pacala
Abstract: Embodiments describe an electronically scanning optical system including an emitter array configured to emit light into a field, a time of flight (TOF) sensor array configured to detect emitted light reflected back from the field, an image sensor array configured to detect ambient light in the field, where a field of view of the emitter array corresponds to a field of view of the TOF sensor array and at least a subset of a field of view of the image sensor array. The optical system further including an emitter controller configured to activate a subset of the plurality of light emitters at a time, a TOF sensor controller configured to synchronize the readout of individual TOF photosensors concurrently with the firing of corresponding light emitters, and an image sensor controller configured to capture an image that is representative of the field during the emission cycle.
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公开(公告)号：US11187802B2
公开(公告)日：2021-11-30
申请号：US16028168
申请日：2018-07-05
Applicant: Ouster, Inc.
Inventor： Angus Pacala , Mark Frichtl
IPC: G01S17/88 , G01S17/08 , G02B26/10 , G01S17/89 , G01S7/497 , G01S7/481 , G01S17/10 , G01S7/4863 , B81B5/00 , G01S17/931 , H01L31/02 , G02B27/30 , H01L27/146 , G06K9/00 , G02B3/00 , G02B26/08 , H01L25/16 , H01S5/183 , H01S5/40
Abstract: Embodiments describe a solid state electronic scanning LIDAR system that includes a scanning focal plane transmitting element and a scanning focal plane receiving element whose operations are synchronized so that the firing sequence of an emitter array in the transmitting element corresponds to a capturing sequence of a photosensor array in the receiving element. During operation, the emitter array can sequentially fire one or more light emitters into a scene and the reflected light can be received by a corresponding set of one or more photosensors through an aperture layer positioned in front of the photosensors. Each light emitter can correspond with an aperture in the aperture layer, and each aperture can correspond to a photosensor in the receiving element such that each light emitter corresponds with a specific photosensor in the receiving element.
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