Target tracking method for air vehicle
First Claim
1. A target tracking method for an air vehicle, comprising steps of:
- during a flight process of an air vehicle main body to a position corresponding to a positioning signal of a global positioning system (GPS), taking a picture of an area where a reference target is located by a camera, and obtaining a reference image;
extracting reference image characteristics of the reference target and initial position information of the reference target in the reference image from the reference image by the air vehicle main body;
when the camera on the air vehicle main body obtains a temporary image showing a temporary target, extracting temporary image characteristics of the temporary target and temporary position information of the temporary target in the temporary image from the temporary image by the air vehicle main body;
if the reference image characteristics are consistent with the temporary image characteristics, calculating a deviation direction by the camera according to a difference between the initial position information and the temporary position information; and
tracking the temporary target by the air vehicle main body in the deviation direction.
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Abstract
A target tracking method for an air vehicle includes steps of: during a flight of an air vehicle main body to a position corresponding to a global positioning system (GPS) positioning signal, taking pictures of an area where a reference target is located by a camera, and obtaining a reference image; extracting reference image characteristics of the reference target and initial position information of the reference target in the reference image from the reference image; when the camera obtains a temporary image showing a temporary target, extracting temporary image characteristics of the temporary target and temporary position information of the temporary target in the temporary image from the temporary image; if the reference image characteristics are consistent with the temporary image characteristics, calculating a deviation direction according to a difference between the initial position information and the temporary position information; and tracking the temporary target in the deviation direction.
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Citations
10 Claims
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1. A target tracking method for an air vehicle, comprising steps of:
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during a flight process of an air vehicle main body to a position corresponding to a positioning signal of a global positioning system (GPS), taking a picture of an area where a reference target is located by a camera, and obtaining a reference image; extracting reference image characteristics of the reference target and initial position information of the reference target in the reference image from the reference image by the air vehicle main body; when the camera on the air vehicle main body obtains a temporary image showing a temporary target, extracting temporary image characteristics of the temporary target and temporary position information of the temporary target in the temporary image from the temporary image by the air vehicle main body; if the reference image characteristics are consistent with the temporary image characteristics, calculating a deviation direction by the camera according to a difference between the initial position information and the temporary position information; and tracking the temporary target by the air vehicle main body in the deviation direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification