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“电子警察”安装定位问题浅析
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作者 陈德敏 《公安应用技术通讯》 1999年第4期30-33,共4页
照相机与闪光灯是“电子警察”的两个重要组成部分,它们的装置位置适当与否直接关系到“电子警察”作用的发挥。本文运用数学分析方法,论述了相机和闪光灯安装的距离与高度对拍摄到的违章车辆的四牌号与红灯清晰度影响的趋势,为合理... 照相机与闪光灯是“电子警察”的两个重要组成部分,它们的装置位置适当与否直接关系到“电子警察”作用的发挥。本文运用数学分析方法,论述了相机和闪光灯安装的距离与高度对拍摄到的违章车辆的四牌号与红灯清晰度影响的趋势,为合理选择相机和闪光灯的安装位置提供重要的理论依据。 展开更多
关键词 照相机定位 闪光灯定位 自动监测系统
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基于视觉定位的脑外科机器人坐标变换问题研究 被引量:1
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作者 王东署 张志佳 史泽林 《计算机工程与应用》 CSCD 北大核心 2005年第6期14-16,49,共4页
视觉定位脑外科手术机器人是近年来发展起来的一种新型医疗机器人。该文首先介绍了整个视觉定位脑外科手术机器人系统的构成和手术过程,随后在传统的通过机器人机械臂点取病人头部四个标记点来建立机器人坐标系与患者头部仿射坐标系之... 视觉定位脑外科手术机器人是近年来发展起来的一种新型医疗机器人。该文首先介绍了整个视觉定位脑外科手术机器人系统的构成和手术过程,随后在传统的通过机器人机械臂点取病人头部四个标记点来建立机器人坐标系与患者头部仿射坐标系之间转换关系的基础上,引入视觉定位功能,通过双目视觉建立起机器人坐标系与患者仿射坐标系之间的关系,从而在根本上提高了系统的机器人坐标系,患者仿射坐标系,3维模型坐标系以及世界坐标系之间的转换精度,有利于进一步的机器人精确手术实现。 展开更多
关键词 计算机辅助手术 三雏重构 坐标转换 视觉定位照相机标定
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Effect of point application on chronic obstructive pulmonary disease in stationary phase and effects on pulmonary function:A systematic evaluation of randomized controlled trials 被引量:13
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作者 Fengsen Li Zhen Gao +2 位作者 Jing Jing Dan Xu Halmurat.Upur 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2012年第4期502-514,共13页
OBJECTIVE: To evaluate clinical efficacy of point application or adjuvant therapy on chronic obstruc- tive pulmonary disease in stationary phase and ef- fects on pulmonary functions. METHODS: Computer retrieved CNKI... OBJECTIVE: To evaluate clinical efficacy of point application or adjuvant therapy on chronic obstruc- tive pulmonary disease in stationary phase and ef- fects on pulmonary functions. METHODS: Computer retrieved CNKI, VIR CBM and other databanks and manual operations retrieved correlative literatures to find randomized con- trolled trials (RCTs) about comparison between point application or adjuvant therapy and no-point-applications for treatment of chronic ob- structive pulmonary disease in stationary phase in China. RevMan 5.0 software was used for Meta anal- ysis. RESULTS: Among 3481 cases in the inclusive 32 RCTS, 1780 cases were in the test group and 1701 cases in the control group. Meta analysis indicated: I) clinical efficacy: the groups containing point ap- plication therapy all were better than the groups ofno-point-application; 2) force vital capacity (FVC): There was no statistically significant difference be- tween the group of point application plus Western Medicine and the Western Medicine group; 3) force expiratory volume 1 (FEVl): The groups containing point application therapy were better than the no-point-application; 4) FEV1% : the groups of point application plus Western Medicine were bet- ter than the Western Medicine groups; 5) FEVl/FVC: there was a significant difference between the group of point application plus Chinese drugs and the group of Chinese drug. CONCLUSION: Point application can increase clini- cal efficacy of chronic obstructive pulmonary dis- ease in stationary phase in varying degrees, and dif- ferent combinations of point application with Chi- nese drugs or Western Medicines have incomplete same actions in improvement of pulmonary func- tion and therapeutic effect. 展开更多
关键词 Pulmonary disease Chronic obstruc-tive Traditional Chinese medicine Acupoint stick-ing therapy Meta-analysis Systematic evaluation
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