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A method for dynamic reasoning base on vision object on unmanned aerial vehicle

A reasoning method and unmanned aerial vehicle technology, applied in the direction of reasoning method, the control of finding targets, etc., can solve the problems such as infeasibility, and achieve the effect of eliminating process errors, eliminating the need for pan/tilt servo rotation adjustment or manual processing

Active Publication Date: 2019-02-15
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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AI Technical Summary

Problems solved by technology

However, for small UAVs, passive detection methods are still not feasible due to the constraints of payload weight and energy consumption

Method used

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  • A method for dynamic reasoning base on vision object on unmanned aerial vehicle
  • A method for dynamic reasoning base on vision object on unmanned aerial vehicle
  • A method for dynamic reasoning base on vision object on unmanned aerial vehicle

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0021] The present invention mainly provides a means for directly inferring the target position and dynamic trend information on the non-visual axis. The present invention only extracts the target pixel position from the camera image, and deduces target related information (including the position in the target earth coordinate system (T lon ,T lat ,T hei ), heading T course , speed T speed ), does not rely on auxiliary sensors such as other active and active detection. In order to solve this problem, the present invention adopts the reasoning of the dynamic trend of the non-line-of-sight target from the perspective of visual compensation deflection angle, and the main steps are summarized as follows:

[0022] (1) Image target detection

[0023] First, the faster RCNN ...

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Abstract

A method for infer that direction of vision-based object on unmanned aerial vehicle (UAV) feature that the flight parameters of aircraft, the angle between camera and UAV and the target compensation angle on image are combined to calculate the position of UAV in the course of inference. Combining the aircraft heading angle and the target position deviation angle on two frames is used to deduce thetarget heading angle. In the target speed reasoning, the method of calculating the cumulative average speed between frames is used. The invention can infer the dynamic information of the object without adjusting the object to the visual axis, and the object at any position of the image can be directly inferred and calculated, thereby avoiding the process error caused by adjusting the object to the image center.

Description

technical field [0001] The invention relates to a dynamic reasoning technology of target movement, in particular to a dynamic reasoning technology of target movement not on the visual axis. Background technique [0002] In recent years, with the advancement of science and technology, drones have been widely used. In the military field, UAVs are often used for reconnaissance and surveillance (some reconnaissance requires stealth and silence), target strikes, combat effectiveness evaluation, etc.; In these applications, the detection of moving targets on the ground is an important aspect, which mainly detects dynamic information such as the position of the target, the speed of action, and the direction of action. Therefore, it is of great significance to study the common basic technology of UAV's dynamic detection of ground targets. [0003] The primary task of dynamic detection of ground targets is target positioning, and ground target positioning is also one of the importa...

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Application Information

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IPC IPC(8): G06N5/04G05D1/12
CPCG05D1/12G06N5/04
Inventor 惠国保王志刚张倩
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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