中国光学Issue(6)：926-932,7.DOI:10.3788/CO.20150806.0926
微弱日盲紫外电晕自动实时检测方法
Automatic real-time detection method of faint solar-blind ultraviolet corona
摘要
Abstract
In order to enhance the corona detection efficiency of commercial SBUV /Visible double spectral co-rona detect systems and avoid the noise interference,an automatic real-time detection method detecting weak solar blind ultraviolet corona is proposed.Based on the analysis of statistical characteristics of the corona target and noise time-domain,utilizing corona characteristics in continuous time domain,the pretreatments like gray image binarization and morphological dilation are completed firstly,followed by accumulation of the N succes-sive frames,then thresholding.At last the features of corona like location,size and so on are extracted.Upon completion of the calibration of radiation equipment,the corona′s photon counting reference value can date back immediately.The mathematical model of detecting probability and false arm rate(FAR)is established. We implement the method and test on a high-speed digital processing platform TMS320DM642 using the video of corona,and the results show that its FAR is 2.85 ×1 0 -5 ,and the processing time is less than 1 20 ms,in-dicating that the weak corona can be detected in real-time.关键词
日盲紫外/电晕探测/自动检测Key words
solar-blind ultraviolet/corona detection/auto-detection分类
信息技术与安全科学引用本文复制引用
周影,娄洪伟,周跃,毕琳,张鑫磊..微弱日盲紫外电晕自动实时检测方法[J].中国光学,2015,(6):926-932,7.基金项目
国家高技术发展研究计划（863计划）资助项目（No．2012AA03A707） Supported by National High-tech R＆D Program of China （）
