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	多路CCD成像非一致性动态校正新方法
	郏东耀 ; 丁天怀 ; Jia Dongyao ; Ding Tianhuai
	2010-06-08 ; 2010-06-08
关键词	成像系统 多路CCD成像 非一致性校正 小波变换 校正效率评估 imaging system multiple CCD imaging non-uniform calibration wavelet transform calibration efficiency evaluation TN386.5
其他题名	A Novel Method for Dynamic Calibrating Non-Uniform of Multiple CCD Imaging
中文摘要	在多路CCD成像结构中,由于影响各路成像参量不一致的因素较多,常规校正方法变得复杂和困难。在分析多路CCD成像机理的基础上,提出了一种利用小波变换的多路CCD成像非一致性动态校正新方法,即在分析同一目标成像中异路图像像元特性差异的基础上,利用小波变换构筑校正因子对后续的CCD捕获图像进行校正。为满足实时校正的需要,研究了动态条件下成像校正的时效性,分析了不同小波的动态校正效率。实验结果表明,校正后同一目标异路图像相关值为0.9975,Symlet3 小波在两路及多路成像校正中均具有较高效率;在多路成像中,Symlet系列小波相对于其它类型小波校正效率相对突出。此方法为多路CCD成像非一致性在线校正提供了有效的途径。; The conventional methods for calibrating non-uniform of multiple charge coupled deivce (CCD) imaging are difficult and complex because of so many factors leading to imaging non-uniform in a multiple CCD imaging system. Based on analyzing imaging mechanism of multiple CCD, a novel calibration method for multiple CCD imaging using wavelet analysis was proposed. The calibration coefficient was constructed using wavelet transform for calibrating the images captured by different CCD after analyzing the pixel characteristic discrimination of different images. The dynamic calibration efficiency of different wavelets was also discussed in the real-time imaging calibration processing. The result indicated that the correlation value of the images of the same object captured by different CCD was 0.9975 after the calibration. Symlet3 wavelet was more effective than other wavelets both in the two CCD imaging and multiple CCD imaging calibrating. And also it indicated that Symlet serial wavelets were more effective in calibrating the non-uniform of multiple CCD imaging than other types of wavelet. This method provided an effective way for on-line calibrating the multiple CCD imaging system in practical application.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/49887]
专题	清华大学
推荐引用方式 GB/T 7714	郏东耀,丁天怀,Jia Dongyao,等. 多路CCD成像非一致性动态校正新方法[J],2010, 2010.
APA	郏东耀,丁天怀,Jia Dongyao,&Ding Tianhuai.(2010).多路CCD成像非一致性动态校正新方法..
MLA	郏东耀,et al."多路CCD成像非一致性动态校正新方法".(2010).

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