Fish biomass, shape, size, or health determination

    公开(公告)号:US11475689B2

    公开(公告)日:2022-10-18

    申请号:US16734661

    申请日:2020-01-06

    Abstract: Methods, systems, and apparatuses, including computer programs encoded on a computer-readable storage medium for estimating the shape, size, mass, and health of fish are described. A pair of stereo cameras may be utilized to obtain off-axis images of fish in a defined area. The images may be processed, enhanced, and combined. Object detection may be used to detect and track a fish in images. A pose estimator may be used to determine key points and features of the detected fish. Based on the key points, a model of the fish is generated that provides an estimate of the size and shape of the fish. A regression model or neural network model can be applied to the fish model to determine characteristics of the fish.

    Robotic control
    112.
    发明授权

    公开(公告)号:US11472026B1

    公开(公告)日:2022-10-18

    申请号:US17183688

    申请日:2021-02-24

    Inventor: Sarah Coe Yuchen Wu

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving, by one or more non-real-time processors, data defining a light illumination pattern for a robotic device. Generating, by the one or more non-real-time processors and based on the data, a spline that represents the light illumination pattern, where a knot vector of the spline defines a timing profile of the light illumination pattern. Providing the spline to one or more real-time processors of the robotic system. Calculating, by the one or more real-time processors, an illumination value from the spline at each of a plurality of time steps. Controlling, by the one or more real-time processors, illumination of a lighting display of the robotic system in accordance with the illumination value of the spline at each respective time step.

    METASTRUCTURED PHOTONIC DEVICE AUTHENTICATION

    公开(公告)号:US20220318365A1

    公开(公告)日:2022-10-06

    申请号:US17222624

    申请日:2021-04-05

    Inventor: Cyril Bortolato

    Abstract: A photonic device is provided. The photonic device may include an input region and a dispersive region optically coupled with the input region. The dispersive region may include a first material and a second material anisotropically distributed to form a plurality of interfaces that each correspond to a change in a refractive index of the dispersive region. The plurality of interfaces may collectively structure the dispersive region to generate an output optical signal from an input optical signal. The photonic device may also include an output region, optically coupled with the dispersive region. The plurality of interfaces may form a material interface pattern in the dispersive region that is characterized by a defect distribution to introduce one or more spectral artifacts into the output optical signal that collectively define a unique spectral signature of the photonic device.

    Adaptive rate modem
    114.
    发明授权

    公开(公告)号:US11456804B2

    公开(公告)日:2022-09-27

    申请号:US16828111

    申请日:2020-03-24

    Abstract: The disclosure provides a communication system that includes sensors, a plurality of components, and processors. The sensors receive measurements related to a state of the communication system. The processors receive an indication of an amount of received power at a remote communication system and estimate a state of the plurality of components based on the received one or more measurements and the received indication. Using the indication and the estimated state, the processors determine whether the amount of received power is likely to fall below a minimum received power within a given time interval. When it is likely, the processors select an adjustment technique of a plurality of adjustment techniques for adjusting a data rate of the outbound signal and adjust a given component of the communication system using the selected adjustment technique to change the data rate of the outbound signal.

    Modular vehicles with detachable pods

    公开(公告)号:US11454985B1

    公开(公告)日:2022-09-27

    申请号:US16751414

    申请日:2020-01-24

    Abstract: The subject matter of this specification generally relates to modular vehicles including separable pod and base units. In some implementations, a computing system installed in a vehicle base identifies a vehicle pod that is detachably connected to a chassis on the vehicle base. In response to identifying that the vehicle pod is detachably connected to the chassis on the vehicle base, a communications link can be established between the computing system installed in the vehicle base and a computing system installed in the vehicle pod. Based on information obtained through the communications link, the computing system installed in the vehicle base can determine a particular configuration of the vehicle pod that is detachably connected to the chassis. The computing system can then verify that the vehicle base can safely transport the vehicle pod while the vehicle pod is detachably connected.

    Fusing multiple depth sensing modalities

    公开(公告)号:US11450018B1

    公开(公告)日:2022-09-20

    申请号:US16726771

    申请日:2019-12-24

    Abstract: A method includes receiving a first depth map that includes a plurality of first pixel depths and a second depth map that includes a plurality of second pixel depths. The first depth map corresponds to a reference depth scale and the second depth map corresponds to a relative depth scale. The method includes aligning the second pixel depths with the first pixel depths. The method includes transforming the aligned region of the second pixel depths such that transformed second edge pixel depths of the aligned region are coextensive with first edge pixel depths surrounding the corresponding region of the first pixel depths. The method includes generating a third depth map. The third depth map includes a first region corresponding to the first pixel depths and a second region corresponding to the transformed and aligned region of the second pixel depths.

    Engagement detection and attention estimation for human-robot interaction

    公开(公告)号:US11436869B1

    公开(公告)日:2022-09-06

    申请号:US16707835

    申请日:2019-12-09

    Abstract: A method includes receiving, from a camera disposed on a robotic device, a two-dimensional (2D) image of a body of an actor and determining, for each respective keypoint of a first subset of a plurality of keypoints, 2D coordinates of the respective keypoint within the 2D image. The plurality of keypoints represent body locations. Each respective keypoint of the first subset is visible in the 2D image. The method also includes determining a second subset of the plurality of keypoints. Each respective keypoint of the second subset is not visible in the 2D image. The method further includes determining, by way of a machine learning model, an extent of engagement of the actor with the robotic device based on (i) the 2D coordinates of keypoints of the first subset and (ii) for each respective keypoint of the second subset, an indicator that the respective keypoint is not visible.

    Reacquiring communication link based on historical data

    公开(公告)号:US11431411B2

    公开(公告)日:2022-08-30

    申请号:US17070585

    申请日:2020-10-14

    Abstract: The disclosure provides for a method for reacquiring a communication link between a first communication device and a second communication device. The method includes using one or more processors of the first communication device to receive historical data related to the first communication device and an environment surrounding the first communication device. The one or more processors are then used to determine one or more trends in the historical data related to fading of the communication link. Based on the one or more trends, the one or more processors are used to determine a starting time and an initial search direction for a search for the communication link. The one or more processors then execute the search at the starting time from the initial search direction.

    Flexible sensor
    119.
    发明授权

    公开(公告)号:US11428592B1

    公开(公告)日:2022-08-30

    申请号:US17129545

    申请日:2020-12-21

    Abstract: A flexible sensor that includes a printed circuit board (PCB), a capacitive structure on the PCB, and mechanical coupling sites. The PCB includes a slot extending from an outer edge of the PCB to an inner portion of the PCB, and the slot defines a first edge and a second edge facing the first edge. The first and second edges are separated by a gap when the PCB is in an unflexed state. The slot is configured to permit the PCB to flex so as to vary a relative position of the first edge with respect to the second edge. The capacitive structure on the PCB includes a first edge electrode on a portion of the first edge of the PCB, and a second edge electrode on a portion of a second edge of PCB. The second edge electrode is aligned with the first edge electrode across the slot.

    Speech recognition biasing
    120.
    发明授权

    公开(公告)号:US11417333B1

    公开(公告)日:2022-08-16

    申请号:US16878822

    申请日:2020-05-20

    Inventor: Daniel Alex Lam

    Abstract: Systems and methods are described include a robot and/or an associated computing system that can use various cues about an environment of the robot to apply a bias to increase the accuracy of speech transcription. In some implementations, audio data corresponding to a spoken instruction to a robot is received. Candidate transcriptions of the audio data are obtained. A respective action of the robot corresponding to each of the candidate transcriptions of the audio data is determined. One or more scores indicating characteristics of a potential outcome of performing the respective action corresponding to the candidate transcription of the audio data are determined for each of the candidate transcriptions of the audio data. A particular candidate transcription is selected from among the candidate transcriptions based at least on the one or more scores. The action determined for the particular candidate transcription is performed.

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