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Infrared Dim Target Detection under Sky-based Background

Author: WeiYaZuo
Tutor: ZhouHuiZuo
School: Xi'an University of Electronic Science and Technology
Course: Physical Electronics
Keywords: Infrared image Blind yuan Target detection Anisotropic adaptive filtering Kalman filter
CLC: TN215
Type: Master's thesis
Year: 2010
Downloads: 154
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Abstract


Thesis research in the context of space-based infrared dim target detection method . First of all, in order to improve the quality of infrared images of the blind in the infrared focal plane array yuan -depth study . Given on the basis of a detailed exposition of the generation mechanism and response characteristics of the blind yuan , a fast and efficient blind the yuan detection method , dual - threshold Iterative Blind the yuan detection method , then be detected by the line element using the adjacent blind alternative Act compensation , isolated blind $ neighbors domain adjacent element weighted algorithm to compensate . Next, focus on the two based on a single frame images Infrared Small Target Detection . Method for the two - stage processing of target detection algorithm , the first phase extraction potential target collection of the second stage , by judging contrast , removed from the set of potential targets in the first stage passed pseudo target to extract the true target ; method for isotropic heterosexual adaptive filtering method used to select the appropriate filter coefficients based on partial differential equations , predicted image background , the input image and predict the background image subtraction and by appropriate threshold segmentation , dim target position . Finally, a single image can not be effective region of the random noise and the target problem , the use the weak target continuity of the movement in the image sequence and the gradation values ??given max - median filtering with Kalman filter combining sequence moving target detection method . After experimental simulation proved that the algorithm can effectively detect infrared dim target in the context of space-based detection .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Infrared technology and equipment > Infrared detection,infrared detectors
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