Method for tracking small target with high precision under complex background and low signal-to-noise ratio

A technology with low signal-to-noise ratio and weak targets, applied in the field of information processing, it can solve the problems of destroying the Iraqi army's fighting will, weak confrontation ability, and dare not use it.
CN101676744AInactive Publication Date: 2010-03-24BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2010-03-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for tracking a small target with high precision under a complex background and a low signal-to-noise ratio (SNR). The method comprises pre-treating an image under the complex background and low SNR, portioning and extracting the target based on a target adaptive threshold of the binomial distribution judgment rule, adopting a curve fitting algorithm based on Kalmanfilter thinking improvement to carry out motion prediction on the target, using data fusion of infrared and visible light transducers to improve detection probability of the target and reduce false-alarm probability, and when the shape of the target alters, using a shape of which edge characteristics are normalized to identify and seek characteristic invariables so as to achieve precise tracking of the target.
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Description

(1) Technical field:

[0001] The invention relates to a high-precision tracking method for weak and small targets under complex backgrounds and low signal-to-noise ratios, in particular to a pattern recognition and intelligent control, target automatic detection and recognition technology under complex backgrounds, image processing and data fusion methods, through visible light and The fusion of infrared information realizes the detection and tracking of weak and small targets in complex backgrounds, and belongs to the field of information processing technology. (two) background technology:

[0002] In modern warfare, the extensive use of various precision-guided weapons has made air defense operations more and more difficult. The application of cruise missiles, stealth aircraft, armed helicopters, anti-radiation missiles, reconnaissance and attack drones has made the air defense situation more and more difficult. How to detect the incoming target and carry out an effective a...

Claims

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