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浏览/检索结果: 共10条，第1-10条 帮助

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Ecological Niche Modeling of Risk Factors for H7N9 Human Infection in China 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2016, 卷号: 13, 期号: 6
作者:  Xu, Min;  Cao, Chunxiang;  Li, Qun;  Jia, Peng;  Zhao, Jian
收藏  |  浏览/下载：34/0  |  提交时间：2017/04/24
Automatic chessboard corner detection method 期刊论文  OAI收割
IET IMAGE PROCESSING, 2016, 卷号: 10, 期号: 1, 页码: 16-23
作者:  Liu, Yu;  Liu, Shuping;  Cao, Yang;  Wang, Zengfu
收藏  |  浏览/下载：23/0  |  提交时间：2018/01/25
人工人口出行行为的平行标定方法研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2013
作者:  叶佩军
收藏  |  浏览/下载：82/0  |  提交时间：2015/09/02
Reagentless near-infrared determination of cholesterol in undiluted human serum using interval partial least square (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Smart Materials and Nanotechnology in Engineering, SMNE 2011, September 17, 2011 - September 18, 2011, Wuhan, China
Gao H.; Lu Q.; Huang F.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
In order to determination of cholesterol in human serum with no reagent using nearinfrared (NIR) spectroscopy. Interval partial least square (iPLS) was proposed as an effective variable selection approach for multivariate calibration. For this purpose  an independent sample set was employed to evaluate the prediction ability of the resulting model. The spectrum was split into different interval. Then  the informative region of cholesterol (1688-1760nm)  in which the PLS model has a low RMSEP with 0.241mmol/L and a high R with 0.975  is selected with 23 intervals. The results indicate that  the informative region of cholesterol can be obtained by iPLS and applied to design the simpler reagentless NIR instruments for inexpensive cholesterol measurement in future. (2012) Trans Tech Publications  Switzerland.  
AN OBSERVATION-BASED UNCERTAINTY EVALUATION COUPLING AUTOMATIC CALIBRATION APPROACH FOR ECOLOGICAL MODEL OF SHALLOW LAKE 期刊论文  OAI收割
FRESENIUS ENVIRONMENTAL BULLETIN, 2012, 卷号: 21, 期号: 8A, 页码: 2255-2265
Li, JM
收藏  |  浏览/下载：26/0  |  提交时间：2013/08/28
Mixed Visual Control Method for Robots With Self-Calibrated Stereo Rig 期刊论文  OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2010, 卷号: 59, 期号: 2, 页码: 470-479
作者:  Shen Yang;  Xu De;  Tan Min;  Yu Junzhi
收藏  |  浏览/下载：25/0  |  提交时间：2015/08/12
Linearity measurement for image-intensified CCD (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Zhang L.;  Zhao Y.
收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25
To the characteristic of the ultraviolet CCD (UV ICCD)  technique of the linearity measurement of the UV ICCD camera is studied based on the theory of radiometry. Approach of linearity measurement is discussed  and a kind of measurement system of the UV ICCD has been developed based on the method of neutral density filter. It is very important that the transmittance of the filter is independent of the wavelength in the method of neutral density filter. Black metal screen mesh with different transmittance is used in our system  and calibration of the filters' transmittance in different working positions has been done. Meanwhile  to assure the uniform of the received radiation on the target of the detector at any test points  an integrating sphere is placed behind the neutral filter to balance light. The whole measurement system mainly consists of a deuterium lamp with high stabilization  the attenuation film with transmission  integrating sphere  optical guide and electro-shift platform. Auto control is realized via special software during the test. With this instrument  the linearity of the UV ICCD was measured. Experimental results show that the nonlinearity of the UV ICCD under fixed-gain is less than 2% and the uncertainty of measurement system is less than 4%. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Research on the nonuniformity correction of linear TDI CCD remote camera (EI CONFERENCE) 会议论文  OAI收割
Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China
Ya-xia L.; Zhi-hang H.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
Many applications  such as industrial inspection and overhead reconnaissance benefit from line scanning architectures where time delay integration (TDI) significantly improves sensitivity[5]. Images with linear response have become the backbone of the imaging industry. But each pixel of the TDI CCD has unique light sensitivity characteristics. Because these characteristics and the lens of the optical system affect camera's linearization and its performance  they must be removed through calibration. The process by which a CCD image is calibrated is known as nonuniformity correction. This paper discusses several methods of nonuniformity correction[2]. The first is one-point correction technique  which requires only one calibration point. This approach is to shift each curve toward the nominal curve by subtracting the offset from or adding the offset to the average. The second is two-point correction technique  which requires two calibration points. Each point is rotated and aligned so that all the detectors have the same response under the same radiance. The third is multipoint correction. It is recommended that more calibration points be implemented at appropriate regions of the response curve. Depend on the linear photoelectric response of the TDI CCD  we use two-point calibration and the standard deviations for the images are given before and after the correction.  
三维重建和摄像机标定技术研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2004
作者:  祝海江
收藏  |  浏览/下载：45/0  |  提交时间：2015/09/02
Measurement of the Z resonance parameters at LEP 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL C, 2000, 卷号: 14, 期号: 1, 页码: 1-50
作者:  ALEPH Collaboration
收藏  |  浏览/下载：20/0  |  提交时间：2015/12/02