机构

• 地理科学与资源研究所 [1]
• 计算技术研究所 [1]
• 长春光学精密机械与物... [1]
• 大连化学物理研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2023 [1]
• 2010 [1]
• 2009 [1]
• 2007 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Hand-drawn sketch and vector map matching based on topological features 期刊论文  OAI收割 FRONTIERS IN EARTH SCIENCE, 2023, 卷号: 11 作者:  Lu, Yuefeng;  Sun, Ying;  Liu, Shuo;  Li, Jing;  Liu, Yanru   |  收藏  |  浏览/下载：32/0  |  提交时间：2023/04/06 topological characteristics  qualitative spatial relation  hand sketching  vector map  matching   Inspection focus technology of space tridimensional mapping camera based on astigmatic method (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Wang Z.;  Wang Z.;  Zhang L.;  Zhang L. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 The CCD plane of the space tridimensional mapping camera will be deviated from the focal plane(including the CCD plane deviated due to camera focal length changed)  under the condition of space environment and vibration  impact when satellite is launching  image resolution ratio will be descended because defocusing. For tridimensional mapping camera  principal point position and focal length variation of the camera affect positioning accuracy of ground target  conventional solution is under the condition of vacuum and focusing range  calibrate the position of CCD plane with code of photoelectric encoder  when the camera defocusing in orbit  the magnitude and direction of defocusing amount are obtained by photoelectric encoder  then the focusing mechanism driven by step motor to compensate defocusing amount of the CCD plane. For tridimensional mapping camera  under the condition of space environment and vibration  impact when satellite is launching  if the camera focal length changes  above focusing method has been meaningless. Thus  the measuring and focusing method was put forward based on astigmation  a quadrant detector was adopted to measure the astigmation caused by the deviation of the CCD plane  refer to calibrated relation between the CCD plane poison and the asrigmation  the deviation vector of the CCD plane can be obtained. This method includes all factors caused deviation of the CCD plane  experimental results show that the focusing resolution of mapping camera focusing mechanism based on astigmatic method can reach 0.25 m. 2010 Copyright SPIE - The International Society for Optical Engineering.   Algorithm and axiomatization of rough fuzzy sets based finite dimensional fuzzy vectors 期刊论文  OAI收割 FRONTIERS OF COMPUTER SCIENCE IN CHINA, 2009, 卷号: 3, 期号: 4, 页码: 560-568 作者:  Wu, Mingfen   |  收藏  |  浏览/下载：21/0  |  提交时间：2019/12/16 fuzzy vector  fuzzy matrix  fuzzy relation  operation  basis  lower and upper approximation  rough fuzzy sets  unary operator   Theoretical study of the stereodynamics of the reactions of D-+H-2 -> H-+HD and H-+D-2 -> D-+HD 期刊论文  OAI收割 chemical physics, 2007, 卷号: 337, 期号: 1-3, 页码: 93-98 作者:  Li, Wen Liang;  Wang, Mei Shan;  Yang, Chuanlu;  Liu, Wenwang;  Sun, Chao 收藏  |  浏览/下载：26/0  |  提交时间：2015/11/11 stereodynamics of the reaction  quasi-classical trajectory theory  differential cross-section  vector relation