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二象对偶论及其对偶分析图 被引量:6
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作者 李伟 高隆昌 《数学的实践与认识》 CSCD 北大核心 2009年第19期174-179,共6页
作为前期工作的继续,通过对系统内在二象间对偶关系的动态描述,发现这里有个重要的logistic动力系统及其logistic积分曲线(L-曲线).进一步由对偶的两条L-曲线构成了一个"对偶分析图",指出除分析外它还蕴涵着非常丰富的内容,... 作为前期工作的继续,通过对系统内在二象间对偶关系的动态描述,发现这里有个重要的logistic动力系统及其logistic积分曲线(L-曲线).进一步由对偶的两条L-曲线构成了一个"对偶分析图",指出除分析外它还蕴涵着非常丰富的内容,值得继续探讨.最后给出一些可继续研究的课题建议. 展开更多
关键词 典型二象对偶系统 动力系统 L-曲线 对偶分析图
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Accuracy Analysis on Bundle Adjustment of Remote Sensing Images Based on Dual Quaternion 被引量:1
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作者 盛庆红 费利佳 +2 位作者 柳建锋 陈姝文 王惠南 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2015年第5期523-529,共7页
A bundle adjustment method of remote sensing images based on dual quaternion is presented,which conducted the uniform disposal corresponding location and attitude of sequence images by the dual quaternion.The constrai... A bundle adjustment method of remote sensing images based on dual quaternion is presented,which conducted the uniform disposal corresponding location and attitude of sequence images by the dual quaternion.The constraint relationship of image itself and sequence images is constructed to compensate the systematic errors.The feasibility of this method used in bundle adjustment is theoretically tested by the analysis of the structural characteristics of error equation and normal equation based on dual quaternion.Different distributions of control points and stepwise regression analysis are introduced into the experiment for RC30 image.The results show that the adjustment accuracy can achieve 0.2min plane and 1min elevation.As a result,this method provides a new technique for geometric location problem of remote sensing images. 展开更多
关键词 photogrammetry bundle adjustment geometric correction dual quaternion geometric imaging model
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