中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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System architecture of coastal remote sensing data mining and services based on cloud computing 期刊论文  OAI收割
2017, 卷号: 15, 期号: 3-4, 页码: 267-276
作者:  
Li, Xuerong;  Wang, Xiujuan;  Wu, Lingling
  |  收藏  |  浏览/下载:13/0  |  提交时间:2020/07/08
Fast matching of astronomical data within data warehouse architecture 期刊论文  OAI收割
ICIC Express Letters, 2014, 卷号: 8, 期号: 10, 页码: 2805-2811
作者:  
Zhang, Hailong;  Wang, Na;  Chen, Wu;  Nie, Jun
收藏  |  浏览/下载:30/0  |  提交时间:2016/08/22
Geocentric distance's errors' correction of space cameras based on USGS DEM (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011, May 27, 2011 - May 29, 2011, Xi'an, China
作者:  
Li W.;  Li W.;  Xu S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
In order to correct the geocentric distance's error of TDI (Time Delay and Integration) CCD space camera in calculation of image motion compensation  the data source of the earth's height above sea level USGS DEM (United States Geological Survey Digital Elevation Model) has been introduced to make digital elevation map  the match error of the forward direction (the integral direction of TDI CCD) has been greatly decreased by correcting the geocentric distance error  and eliminate the influence to the relative error of image motion velocity  and correct the error generated by the different heights above sea level. After correcting  which greatly improves the imaging quality of TDI CCD space camera. 2011 IEEE.  a model of image motion calculation of nadir has been introduced  the calculation and analysis of the model shows that: the maximum error of image motion velocity about 1.72% has been decreased to 0.06%  and the influence of the geocentric distance error to the relative error of image motion velocity has been analyzed with the model  
An image identification system of seal with fingerprint based on CMOS image sensor (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Xue X.-C.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
CMOS image sensors now become increasingly competitive with respect to their CCD counterparts  while adding advantages such as no blooming  simpler driving requirements and the potential of on-chip integration of sensor  analog signal conditioning circuits  A/D converter and digital processing functions. Furthermore  CMOS sensors are the best choices for low-cost imaging systems. An image identification system based on CMOS image sensor is used to identify the seal images that include fingerprint  and then determine whether the seal is fake or not. The system consists of a color CMOS image sensor (OV2610)  a buffer memory  a CPLD  a MCU (P89C61X2)  a USB2.0 interface chip (ISP1581) and a personal computer. The CPLD implement the logic and timing of the system. The MCU and the USB2.0 interface chip deal with the communications between the images acquisition system and PC. Thus PC can send some parameters and commands to the images acquisition system and also read image data from it. The identification of the images of seal is processed by the PC. The structure and scheme of the system are discussed in detail in this paper. Several test images of seal taken by the system are also provided in the paper.  
Integration of data on Chinese Mountains into a digital altitudinal belt system SCI/SSCI论文  OAI收割
2006
作者:  
Xu J.
收藏  |  浏览/下载:151/0  |  提交时间:2012/06/08