中国科学院机构知识库网格系统: 检索

多角度偏振成像仪面阵探测器筛选及测试方法 期刊论文 OAI收割
光学学报, 2020, 卷号: 40
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收藏 | 浏览/下载：19/0 | 提交时间：2020/10/26

measurement directional polarimetric camera area CCD screening electro-optical performance high reliability and stability 测量多角度偏振成像仪面阵电荷耦合器件筛选光电性能高稳定性与可靠性

Validation of MODIS global LAI products in forested terrain 会议论文 OAI收割
IEEE Geoscience and Remote Sensing Symposium. (IGARSS), Quebec, Canada, 2014/07/13-2014/07/18
作者: Huaan Jin; Ainong Li; Jinhu Bian; Guangbin Lei; Jianbo Tan

收藏 | 浏览/下载：35/0 | 提交时间：2014/12/22

leaf area index MODIS HJ-1 CCD validation forested terrain

VALIDATION OF MODIS GLOBAL LAI PRODUCTS IN FORESTED TERRAIN 会议论文 OAI收割
Quebec City, JUL 13-18, 2014
作者: Jin Huaan; Li Ainong; Bian Jinhu; Lei Guangbin; Tan Jianbo

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收藏 | 浏览/下载：14/0 | 提交时间：2020/08/20

Leaf area index MODIS HJ-1 CCD validation forested terrain

Comparative analysis of HJ-1, SPOT, and TM data for leaf area index estimation in a mountainous area 会议论文 OAI收割
IEEE International Geoscience and Remote Sensing Symposium, Melbourne, 2013
作者: Jin HA(靳华安); Li AN(李爱农); Bian JH(边金虎)

收藏 | 浏览/下载：20/0 | 提交时间：2013/12/23

leaf area index landsat TM HJ-1 CCD SPOT4 mountainous area

Transitional compensation algorithm for correcting non-uniformity of LED display image (EI CONFERENCE) 会议论文 OAI收割
2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China
Su W.-x.; Chen Y.-s.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

In order to solve the problem of high non-uniformity of LED display images which is caused by the edges of LED display panel during module splicing transitional compensation algorithm is proposed by improving the existed correction technique named the correction technique based on CCD. First introduce the three development stages of the LED display panel. Then the realization progress of the transitional compensation algorithm is described in detail after elaborating the principle of transitional compensation. Finally the algorithm is emplaned in a LED video control system to control the LED display panel whose display area is 1280960 and which is spliced by 3020 LED modules whose size are 6432. Experimental results show that this algorithm is able to reduce non-uniformity of LED display images from 29.3% before correcting to 0.95%. (2012) Trans Tech Publications Switzerland.

Design of high speed and parallel compression system used in the big area CCD of high frame frequency (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011, December 9, 2011 - December 11, 2011, Xi'an, China
作者: Li G.-N.; Jin L.-X.; Zhang R.-F.; Wang W.-H.; Li G.-N.

收藏 | 浏览/下载：51/0 | 提交时间：2013/03/25

According to the area CCD camera of characteristics such as high resolution capacity and high frame frequency this paper puts forward a high speed and parallel image compression system of high integration degree. Firstly according to the work principle of the area CCD FPGA is adopted to realize the timing driving and multichannel and parallel analog signal handling to raise the export frame frequency of the area CCD. Secondly with an image compression scheme based on FPGA embedded processor MicroBlaze and ADV212 compression chip real time image compression and the high speed area CCD are realized. Finally by detecting the analog signal of the area CCD output the real time compression of the big area CCD image is carried out in different compression ratios and the compression performance is analyzed. Experiment result shows that this scheme can realize real time image compression with the biggest data rate of 520Mbps. When compression bit ratio is 0.15 the signal-to-noise ratio of peak value can reach 36 dB. Image collection and image compression are integrated which reduces the data transmission between them and improves systematic integration degree.

Imaging control of airborne area CCD mapping camera (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者: Chen X.; Chen X.; Chen X.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

Digital mapping camera is an important tool for modern airborne photogrammetry. Monochromic area CCD which is full frame transfer is selected as image sensor in this paper. Electronic shutter is utilized to eliminate the opening delay of mechanical shutter which will affect the precision of exterior orientation elements acquisition. The equation for calculation displacement of principal point is proposed for TDI forward image motion compensation to compensate principal point shift. Imaging pose control system is designed in order to meet the need for airborne stereo mapping. 2011 IEEE.

Realization of the imaging-auto-focus on the APRC using splicing- CCD (EI CONFERENCE) 会议论文 OAI收割
International Conference on Graphic and Image Processing, ICGIP 2011, October 1, 2011 - October 2, 2011, Cairo, Egypt
Lu Z.; Guo Y.; Xue X.; Ma T.; Lv H.

收藏 | 浏览/下载：13/0 | 提交时间：2013/03/25

It is difficult to deal with the auto-focus of aerial push-broom remote sensing camera (APRC) based on image processing. First of all this paper recommended the Splicing structure of CCD in the APRC Based on this auto-focus method which is made use of the overlapping area of CCD mosaic structure was proposed combined with the characteristic of the imaging mode. After analyzing of experiments about all kinds of focus-examine functions based on image processing the gradient square function has been chosen. The experimental results show that the proposed auto-focus method for the APRC is proved to be feasible and real-time. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Radiometric Calibration of LCTF-Based Multispectral Area CCD Camera 期刊论文 OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 卷号: 31
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收藏 | 浏览/下载：11/0 | 提交时间：2020/10/26

Remote sensing Radiometric calibration Liquid crystal tunable filter (LCTF) Area CCD Frame transfer

Design of driving circuit for binocular CCD image system (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: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：42/0 | 提交时间：2013/03/25

The paper designs a driving circuit of high sensitive wide dynamic and high signal-to-noise ratio for binocular CCD imaging system which adopts a Dalsa-made high resolution full-frame 33-mega pixels area CCD FTF5066M. Inner structure and driving timing of the FTF5066M sensor are presented. Field Programmable Gate Array (FPGA) is used as the main device to accomplish the timing design of the circuits and power driver control of the two sensors. By using the Correlated Double Sampling (CDS) technique the video noise is reduced and the SNR of the system is increased. A 12- bit A/D converter is used to improve the image quality. The output rate of the imaging system designed with integrated chip can reach to 1.3 frames per second through bi-channel. For its good performance low power consumption and small volume the driving system can be applied to aeronautics and astronautics field. With a further improvement a maximum data output rate of 2.7 frames per second can be reached through all the eight channels of the two CCDs. 2010 Copyright SPIE - The International Society for Optical Engineering.