System and method for generating panoramic acoustic images and virtualizing acoustic imaging devices by segmentation

    公开(公告)号:US12117523B2

    公开(公告)日:2024-10-15

    申请号:US17472442

    申请日:2021-09-10

    CPC classification number: G01S15/8925 G01S15/42 G06T7/11

    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the one or more acoustic signals. A processor receives a first set of acoustic data representing a first portion of the target scene and having a first field of view (FOV), generates a first acoustic image based on the first set of acoustic data, receives a second set of acoustic data representing a second portion of the target scene and having a second FOV, wherein the second FOV is different than the first FOV, generates a second acoustic image based on the second set of acoustic data, registers the first acoustic image and the second acoustic image to form an aligned first acoustic image and second acoustic image, and generate a panorama comprising the aligned first acoustic image and second acoustic image for presentation on a display.

    Systems and methods of measuring an object in a scene of a captured image

    公开(公告)号:US12067741B2

    公开(公告)日:2024-08-20

    申请号:US18137592

    申请日:2023-04-21

    CPC classification number: G06T7/60 G01S15/42 G01S17/42 H04N7/183

    Abstract: Systems and methods are provided that include a plurality of sensors, communicatively coupled to one another, to periodically transmit positional location information. A digital image capture device, communicatively coupled to the plurality of sensors, may capture an image of a scene which includes at least one of the plurality of sensors. A processor, communicatively coupled to the digital capture device, may determine a measurement of a least one object in the captured image of the scene, where the measurement of the at least one object is based at least in part on the positional location information received by the digital image capture device at the time that the image of the scene is captured. A display device, communicatively coupled to the processor, may display the determined measurements of the at least one object.

    Methods and system to assist search and interception of lost objects

    公开(公告)号:US11885875B2

    公开(公告)日:2024-01-30

    申请号:US17113804

    申请日:2020-12-07

    CPC classification number: G01S15/42 B63C7/26 B64D25/20 G01S15/74 B64D2045/0065

    Abstract: Devices and methods for aiding a large area search for objects. A searcher transmits interrogation signals of long range relative to the return range to be received by a device at the target object. The target device responds with a ping signal modified to be more easily found by means of information contained in the interrogation signal. The information may be in the nature of the received signal or data encoded and embedded. The target device may use a microprocessor to do complex operations using the information from the interrogation signal and other information. Detection of a weak ping is facilitated by such means as being beamed in the direction of the interrogation, arriving at a predictable time, or having parameters adapted to values requested by the searcher. The object is then intercepted with help of the ping or other signals from the device.

    METHODS AND SYSTEM TO ASSIST SEARCH AND INTERCEPTION OF LOST OBJECTS

    公开(公告)号:US20180275271A1

    公开(公告)日:2018-09-27

    申请号:US15997815

    申请日:2018-06-05

    CPC classification number: G01S15/42 B63C7/26 B64D25/20 B64D2045/0065 G01S15/74

    Abstract: Devices and methods for aiding a large area search for objects. A searcher transmits interrogation signals of long range relative to the return range to be received by a device at the target object. The target device responds with a ping signal modified to be more easily found by means of information contained in the interrogation signal. The information may be in the nature of the received signal or data encoded and embedded. The target device may use a microprocessor to do complex operations using the information from the interrogation signal and other information. Detection of a weak ping is facilitated by such means as being beamed in the direction of the interrogation, arriving at a predictable time, or having parameters adapted to values requested by the searcher. The object is then intercepted with help of the ping or other signals from the device.

    Scaling fixed-point fast Fourier transforms in radar and sonar applications

    公开(公告)号:US09977116B2

    公开(公告)日:2018-05-22

    申请号:US14875281

    申请日:2015-10-05

    Inventor: Boris Lerner

    Abstract: Present disclosure describes an improved scaling mechanism for a multi-stage fixed-point FFT algorithm used to process signals received by radar or sonar systems. Proposed scaling includes scaling an output of every pair of consecutive butterfly stages of the FFT algorithm by a scaling factor equal to two times of the inverse of a growth factor for the pair of consecutive butterfly stages for the FFT algorithm for a purely complex exponential input signal. Besides this scaling, input signals are allowed to overflow by saturation. Such mechanism yields adequate performance of radar and sonar receivers implementing fixed-point FFTs for any types of input signals, from random to substantially complex exponential or sinusoidal signals. Proposed scaling achieves a balance between having signal to noise ratio (SNR) that is possible to obtain for a particular input signal and SNR that is needed to successfully process that signal for radar and sonar applications.

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