A real-time localization method for key points of typical non-cooperative targets under high frame rate conditions

Abstract

The invention discloses a real-time positioning method for key points of typical non-cooperative targets under the condition of high frame frequency, comprising the following steps: performing down-sampling processing on the current frame image to obtain the down-sampled image; performing horizontal and vertical projection operations on the down-sampled image, Calculate the range of the target area; within the range of the obtained target area, perform a circle projection calculation operation on the current frame image to obtain the image after the circle projection; perform adaptive threshold processing on the image after the circle projection to obtain the threshold for segmenting the edge of the target; according to the obtained Calculate the edge information of the image after the circular projection; for the edge information, use parallel computing to calculate its curvature; smooth the obtained curvature; find the maximum value of the smoothed curvature, and mark the maximum value corresponding to The image pixel serial number of the target key point in the current frame image is obtained through coordinate conversion. The invention can locate the key points of typical non-cooperative targets under the complex background with high frame rate.

Description

technical field [0001] The invention relates to the fields of target recognition and multi-core parallel processing, in particular to a real-time positioning method for key points of typical non-cooperative targets under high frame rate conditions. Background technique [0002] In recent years, with the maturity of flight control technology and the reduction of electronic integration costs, aerial vehicles (such as drones, balloons, etc.) have become more and more widely used in military fields such as reconnaissance and strike. Once these aircraft of the enemy enter our country's airspace, they will certainly pose a great threat to our country's national security and people's lives and property. Relevant countermeasure technologies (such as reconnaissance, shooting, net capture, control interference, etc.) must be used to quickly discover and monitor them , control and destroy. Among them, how to quickly and effectively find the enemy's small air targets and precisely loca...

AI Technical Summary

Problems solved by technology

These methods have a good detection rate and a low false alarm rate, and can basically meet the requirements of target detection and recognition in the civilian field. However, due to the complexity of the algorithm design, the algorithm consumes resources (whether it is time or space) Huge, it is difficult to meet some special requirements in military applications, such as high frame rate, wide format, complex background, key point detection, etc.

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