中国科学院机构知识库网格系统: 检索

Design of a compact spectrometer under grazing incidence conditions for near-edge X-ray absorption spectroscopy;X 期刊论文 OAI收割
Chinese Optics, 2018, 卷号: 11, 期号: 2, 页码: 265-278
作者: Chen, Chen-Xi-Yang; Jin, Chun-Shui; Wang, Jun; Xie, Yao

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收藏 | 浏览/下载：20/0 | 提交时间：2019/09/17

Spectrometers CCD cameras Laser produced plasmas Nitrogen plasma Optical resolving power Organic carbon Organic lasers Ray tracing X ray absorption spectroscopy

Design of high-sensitivity EMCCD navigation camera 期刊论文 OAI收割
Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2018, 卷号: 26, 期号: 12, 页码: 3019-3027
作者: He, Jia-Wei; He, Xin; Wei, Zhong-Hui; Mu, Zhi-Ya; Li, Fang-Biao

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收藏 | 浏览/下载：27/0 | 提交时间：2019/09/17

Signal to noise ratio CCD cameras Charge coupled devices Data handling Design Digital storage Interplanetary flight Navigation Space research

Study on High Precision Magnification Measurement of Imaging Systems 期刊论文 OAI收割
Guangxue Xuebao/Acta Optica Sinica, 2018, 卷号: 38, 期号: 7
作者: Dong, Guanji; Tang, Feng; Wang, Xiangzhao; Feng, Peng; Guo, Fudong

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收藏 | 浏览/下载：13/0 | 提交时间：2019/09/17

Interferometry CCD cameras Diffraction Imaging systems Measurement Uncertainty analysis

Study on the effect of rolling shutter sCMOS camera on space debris observation 期刊论文 OAI收割
Optics and Precision Engineering, 2018, 卷号: 26, 期号: 6, 页码: 1441-1449
作者: Zhang Xiao-xiang, 张晓祥; Zhao Jin-yu, 赵金宇; Jia Jian-lu, 贾建禄; Wu Qing-lin, 吴庆林; Lu Yao, 鹿瑶

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收藏 | 浏览/下载：14/0 | 提交时间：2019/09/17

Space debris CCD cameras Pixels

High efficiency and flexible working distance digital in-line holographic microscopy based on Fresnel zone plate 期刊论文 OAI收割
Measurement Science and Technology, 2017, 卷号: 28, 期号: 5, 页码: 055209
作者: Tian, Peng; Hua, Yilei; Yang, Fan; Li, Fanxing; Hu, Song

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收藏 | 浏览/下载：27/0 | 提交时间：2018/11/20

CCD cameras - Efficiency - Light sources - Microelectronics - Microscopic examination - Noise pollution

A novel method to real-time offset correction for frame transfer CCD 会议论文 OAI收割
8th international symposium on advanced optical manufacturing and testing technologies: optoelectronic materials and devices, aomatt 2016, suzhou, china, 2016-04-26
作者: Chen, Zhi; Wen, Yan; Yao, Dalei; Jiang, Baotan

收藏 | 浏览/下载：24/0 | 提交时间：2016/12/20

CCD cameras Charge coupled devices Digital storage Image acquisition Manufacture Materials testing Optical data processing Optoelectronic devices Processing Shift registers Signal processing

Auto-registration and orthorecification algorithm for the time series HJ-1A/B CCD images 期刊论文 OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2013, 卷号: 10, 期号: 5, 页码: 754-767
作者: Bian Jin-hu; Li Ai-nong; Jin Hua-an; Lei Guang-bin; Huang Cheng-quan

收藏 | 浏览/下载：32/0 | 提交时间：2013/09/23

HJ time series images Auto-geocorrection Topographic correction Wide coverage CCD cameras

Method of improving the accuracy of image motion measurement for panoramic aerial cameras (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: Jia P.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

To improve the accuracy of image motion measurement for panoramic aerial cameras the paper proposed a method of real-time image motion measurement based on 2D spatial correlation. An auxiliary area CCD is positioned paralleled to the main linear TDI CCD in the focal plane of the camera. For every frame of the image sequence taken by the auxiliary CCD a prediction on the displacement of the current image in the flight direction is made based on the forward image motion velocity. The current and the reference images are combined together for 2D-correlation which products an image motion vector. By decomposing the vector both the forward and pendulum-swing image motions can be determined. The demanding computational requirements for the real-time 2D-correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 Copyright SPIE - The International Society for Optical Engineering.

Panoramic aerial camera image motion measurement using a hybrid system (EI CONFERENCE) 会议论文 OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者: Jia P.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

Image motion compensation is significantly important for aerial camera photograph. To execute the compensation we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 IEEE.

Earth elevation map production and high resolution sensing camera imaging analysis (EI CONFERENCE) 会议论文 OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者: Dai L.

收藏 | 浏览/下载：131/0 | 提交时间：2013/03/25

The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes orbital angular rate changes latitude longitude and the orbital inclination changes. And then elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last the deviant framework and camera controller are used to test the character of deviant angle errors TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging. 2010 SPIE.