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US 2022/0026557 A1Published application
Spatial sensor system with background scene subtraction
AssigneePlato Systems, Inc.
InventorsMohammad Amin Arbabian, Alex Gilbert, Hao Nan, Mashhour Solh
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Abstract
A system is provided that learns a radar scene's background and that filters radar tracks determined to be in the radar scene background; The system including processing circuitry configured with executable instructions to accesses radar tracks that include radar measurements; to use the measurements to determine a persistent radar object in a radar scene background; and to subsequently filter accessed radar tracks having locations within the radar scene background.
Claims21
A system comprising:
- processing circuitry;
- and
- a non-transitory memory storing instructions which, when executed by the processing circuitry, cause the processing circuitry to perform operations comprising:
- accessing radar tracks, each radar track comprising one or more Doppler measurements, one or more range measurements, and one or more angle measurements;
- determining a persistent radar object at a radar background location within the radar scene, based upon one or more of the accessed radar tracks having the background location;
- and
- filtering a first accessed first radar track having a location within the radar scene corresponding to the determined background location.
4 more elements
A system comprising:
- processing circuitry;
- and
- a non-transitory memory storing instructions which, when executed by the processing circuitry, cause the processing circuitry to perform operations comprising:
- detecting track paths for a plurality of radar tracks;
- determining one or more radar foreground activity patterns, based at least in part upon the detected track paths;
- and
- producing an alert signal, based upon at least one second accessed radar track and a determined radar foreground activity pattern.
4 more elements
A system comprising:
- processing circuitry;
- and
- a non-transitory memory storing instructions which, when executed by the processing circuitry, cause the processing circuitry to perform operations comprising:
- accessing radar tracks, each radar track comprising one or more Doppler measurements, one or more range measurements, and one or more angle measurements:
- accessing vision data from one or more computer vision devices, the vision data from the one or more computer vision devices comprising two-dimensional (2D) images of the vision scene;
- determining a radar background based upon the accessed radar tracks;
- determining an image background based upon the accessed 2D images;
- accessing a first accessed radar track at a first radar scene location;
- accessing a first image region of interest (ROI) at a first vision scene location;
- filtering the first accessed radar track based at least in part upon whether a first radar scene location of the first accessed radar track is within the radar background and whether a first vision scene location of the first image region of interest (ROI) is within the vision background.
7 more elements
Dependencies are inferred from the claim text.