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《Infrared Technology》 2015-04
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Simulation and Real-time Application of Infrared Thermal Image Rectification Technology of Rectification Algorithm of Double Threshold Segmentation in Pseudo-color Conversion

GE Man-ling;WEI Meng-jia;YANG Hao-yu;SHI Peng-fei;CHEN Ying;FU Xiao-xuan;ZHANG Ji-chang;CHEN Yu-min;The Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Department of Electrical Engineering,Hebei University of Technology;Beijing Huaxia Julong Automation Co. Ltd;  
Recently, the technology of infrared thermal imaging is being paid more attention tofor its advantage of monitoring the image and localizing the faults of electrical equipment such as transformer.However, the temperature picture supplied by the infrared imager is gray and blurring, not easy to eye observation and monitoring, so it is necessary for the infrared thermal image to be displayed in a pseudo-color manner and to be rectified 。 Here, an algorithm of image enhancement termed as double threshold segmentation was proposed, and was applied to the pseudo-color conversion for original gray images of electrical transformer after algorithm simulation. Additionally, the algorithm ran in the double-chip processing system of DSP642 + FPGA. It was resulted that the combining algorithms of pseudo-color conversion and rectification could complete precisely the color conversion for a better visual color image to be shown with more details than the original gray image, and the problem of unclear image details was solved in infrared image processing.
【Fund】: 河北省高等学校科学技术研究项目 编号:ZD2014026
【CateGory Index】: TN219;TP391.41
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