中国科学院机构知识库网格
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DSets-DBSCAN: A Parameter-Free Clustering Algorithm 期刊论文  OAI收割
ieee transactions on image processing, 2016, 卷号: 25, 期号: 7, 页码: 3182-3193
作者:  
Hou, Jian;  Gao, Huijun;  Li, Xuelong
收藏  |  浏览/下载:28/0  |  提交时间:2016/10/13
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:140/0  |  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.  
Real-time defogging processing of aerial images (EI CONFERENCE) 会议论文  OAI收割
2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010, September 23, 2010 - September 25, 2010, Chengdu, China
作者:  
Liu G.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
A real-time image defogging processing method based on FPGA is proposed to increase low-contrast of the aerial images in foggy vision conditions. According to the high similarity of the contiguous frame histogram in video image  the histogram equalization algorithm is improved to enhance the image contrast. The median filter algorithm is used to eliminate the noise of the image. The experimental results demonstrate that the method can efficiently enhance the contrast  strengthen the detail and clarify definition for the fog-degraded aerial images. The visibility limit of the images has been increased to a time above. Simultaneously the method satisfies the real-time processing requirement of aerial video images  which has direct applications to the problem of poor visibility conditions. 2010 IEEE.  
基于直方图处理和新型相似性度量函数的小尺寸目标跟踪算法 期刊论文  OAI收割
信号处理, 2010, 卷号: 26, 期号: 6, 页码: 891-897
陈建军; 安国成; 张索非; 吴镇扬
收藏  |  浏览/下载:17/0  |  提交时间:2011/05/23
图像特征的相似性度量 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, 2009
作者:  
严望
收藏  |  浏览/下载:143/0  |  提交时间:2015/09/02
指纹匹配算法的研究与应用 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, 2003
作者:  
张堂辉
收藏  |  浏览/下载:141/0  |  提交时间:2015/09/02