Method and system for dismount detection in low-resolution uav imagery
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorRiad Hammoud
Life of this patent
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Abstract
A method for dismount detection in low-resolution UAV imagery, comprising providing an input image, processing a greyscale distribution of the input image, determining a rough classification in the input image based on the grayscale distribution, determining the optimal parameters based on the rough classification, estimating one or more potential dismount locations, applying an area filter to the one or more potential dismount locations, removing undesired locations from the one or more potential dismount locations, applying one or more secondary filters to the resulting one or more potential dismount locations, assigning a probability to the one or more potential dismount locations, and assessing desirability of the one or more potential dismount locations.
Claims28
A method for dismount detection in low-resolution, high-altitude imagery, comprising;
- providing an input image;
- processing a greyscale distribution of the input image;
- determining a rough classification in the input image based on the grayscale distribution;
- determining optimal parameters based on the rough classification;
- estimating at least one potential dismount location;
- applying an area filter to the at least one potential dismount location;
- removing undesired locations from the at least one potential dismount location;
- applying at least one secondary filter to the resulting at least one potential dismount location;
- assigning a probability to the at least one potential dismount location;
- and
- assessing desirability of the at least one potential dismount location.
A method to improve reliability of dismount detection from low resolution imagery, the method comprising the steps of:
- obtaining an input image;
- and,
- determining from the input image a probability that a portion of the input image corresponds to a dismount by applying a plurality of filtering techniques and image processing techniques, and fusing the results of the plurality of filtering techniques and image processing techniques to ascertain a probability of a dismount in the input image.
A method of improving the reliability of dismount detection in a low resolution input image, the method comprising the steps of:
- receiving a low resolution input image from a high altitude, wherein the low resolution input image has a potential dismount;
- processing the low resolution input image utilizing rough classification filtering;
- processing the low resolution input image using at least one of:
- image smoothing, contrast enhancement, multilevel image segmentation, area filtering, blob extraction, contrast filtering, dynamic filtering, thermal filtering, change detection filtering, motion history filtering, clutter identification and shape filtering;
- and
- outputting a probability of at least 98% that the potential dismount is a verified dismount.
Dependencies are inferred from the claim text.