RADAR AIDED VISUAL INERTIAL ODOMETRY OUTLIER REMOVAL

    公开(公告)号:US20190162842A1

    公开(公告)日:2019-05-30

    申请号:US15826556

    申请日:2017-11-29

    Inventor: Urs Niesen

    Abstract: Various embodiments disclose a device with one or more processors which may be configured to translate a RADAR velocity map in at least one image plane of at least one camera, to form a three-dimensional RADAR velocity image. The 3D RADAR velocity image includes a relative velocity of each pixel in the one or more images, and the relative velocity of each pixel is based on a RADAR velocity estimate in the three-dimensional RADAR velocity map. The one or more processors may be configured to determine whether visual features correspond to a moving object based on the relative velocity of each pixel determined, and may be configured to remove the visual features that correspond to a moving object, prior to providing them as an input into a state updater, in a RADAR-aided visual inertial odometer.

    REPAIR OF CARRIER-PHASE CYCLE SLIPS USING DISPLACEMENT DATA

    公开(公告)号:US20180074206A1

    公开(公告)日:2018-03-15

    申请号:US15265685

    申请日:2016-09-14

    CPC classification number: G01S19/22 G01S19/26 G01S19/29 G01S19/44

    Abstract: The disclosure generally relates to position sensors, and more particularly to repair of carrier-phase cycle slips using displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to processor and memory are configured to detect a loss of lock of a first carrier tracking loop associated with the first set of carrier-phase measurements, wherein the first carrier tracking loop is associated with a first integer ambiguity, estimate, based on the displacement data, an ambiguity increment to the first integer ambiguity subsequent to the detected loss of lock, and resolve a second integer ambiguity associated with the second set of positioning signals based on the first integer ambiguity and the estimated ambiguity increment.

    DETECTION OF OUTLIER RANGE MEASUREMENTS USING SPATIAL DISPLACEMENT DATA

    公开(公告)号:US20180074205A1

    公开(公告)日:2018-03-15

    申请号:US15265617

    申请日:2016-09-14

    CPC classification number: G01S19/22 G01S19/26 G01S19/29

    Abstract: The disclosure generally relates to position sensors, and more particularly to outlier detection using spatial displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver having a receiver clock, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to calculate a change in a receiver clock bias of the receiver clock based on range measurements and spatial-based displacement data, propagate a first range measurement based, at least in part, on the spatial-based displacement data and the change in the receiver clock bias, and determine an outlier range measurement based, at least in part, on the propagated first range measurement.

    CONDITIONAL EMBEDDING OF DYNAMICALLY SHIELDED INFORMATION ON A BUS

    公开(公告)号:US20170109313A1

    公开(公告)日:2017-04-20

    申请号:US14885942

    申请日:2015-10-16

    CPC classification number: G06F13/4282 G06F1/10 H04B3/32 H04L12/40 H04L12/6418

    Abstract: System, methods, and apparatus are described for transmitting encoded bits over a bus by conditionally embedding dynamically shielded information, in an example, the apparatus transmits a first group of encoded bits over a bus, generates a second group of encoded bits to be transmitted over the bus, where a first subset of the second group of encoded bits are encoded to avoid crosstalk-inducing bit transitions on adjacent lines of the bus, and configures one or more encoded bits of a second subset of the second group of encoded bits to ensure that the second group of encoded bits includes parity information and/or clock information, while further ensuring that crosstalk-inducing bit transitions in the second group of encoded bits are avoided.

    Radar-aided single image three-dimensional depth reconstruction

    公开(公告)号:US11276189B2

    公开(公告)日:2022-03-15

    申请号:US16809348

    申请日:2020-03-04

    Abstract: Disclosed are techniques for radar-aided single-image three-dimensional (3D) depth reconstruction. In an aspect, at least one processor of an on-board computer of an ego vehicle receives, from a radar sensor of the ego vehicle, at least one radar image of an environment of the ego vehicle, receives, from a camera sensor of the ego vehicle, at least one camera image of the environment of the ego vehicle, and generates, using a convolutional neural network (CNN), a depth image of the environment of the ego vehicle based on the at least one radar image and the at least one camera image.

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