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遥感图像中的典型目标识别算法研究 学位论文
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2011
作者:  李伟
收藏  |  浏览/下载：97/0  |  提交时间：2015/09/02
无线视频传感网原型系统设计与实现 学位论文
工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2011
作者:  赵学亮
收藏  |  浏览/下载：29/0  |  提交时间：2015/09/02
Cast shadow detection for Surveillance system based on tricolor attenuation Model 会议论文
2011 International Conference on Mechatronics and Information Technology, (ICMIT 2011), Shenyang, China, August 16-19, 2011
作者:  Zhu LL(朱琳琳);  Tian JD(田建东);  Tang YD(唐延东);  Han JD(韩建达)
收藏  |  浏览/下载：14/0  |  提交时间：2012/12/28
Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
Zhang B.; Zhang Z.-D.; Zhang S.-M.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications  on the other  which should be calculated  calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not  analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors  without considering the effect of the background radiation. By improving of the traditional method  including atmospheric attenuation  a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method  the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand  we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end  the dispersion of the image and the effect of image dispersion are not considered in the traditional method  an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
An automatic pedestrian detection and tracking method: Based on mach and particle filter (EI CONFERENCE) 会议论文
2011 International Conference on Network Computing and Information Security, NCIS 2011, May 14, 2011 - May 15, 2011, Guilin, Guangxi, China
Han Q.; Yao Z.
收藏  |  浏览/下载：10/0  |  提交时间：2013/03/25
Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
Dong Y.-X.; Li Y.; Zhang H.-B.
收藏  |  浏览/下载：96/0  |  提交时间：2013/03/25
Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system  the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms  such as adaptive background prediction detecting method. When background has dispersion-decreasing structure  the traditional target detection algorithms would be more useful. But when the background has large gray gradient  such as sea-sky-line  sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature  in our opinion  from the perspective of mathematics  the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis  the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection  its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore  the purpose of the image preprocessing is to reduce the effects from noise  also to raise the SNR of image  and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics  the median filter is used to eliminate noise  improve signal-to-noise ratio  then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line  so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
High sensitive and label-free colorimetric DNA detection based on nicking endonuclease-assisted activation of DNAzymes 期刊论文
TALANTA, 2011, 卷号: 85, 页码: 91-96
作者:  Li, Juan;  Yao, Qiu-Hong;  Fu, Hua-E;  Zhang, Xiao-Long;  Yang, Huang-Hao
收藏  |  浏览/下载：3/0  |  提交时间：2019/11/21
A Novel System for Moving Object Detection Using Bionic Compound Eyes 期刊论文
journal of bionic engineering, 2011
Sun, Huabo; Zhao, Haimeng; Mooney, Peter; Zhao, Hongying; Liu, Daping; Yan, Lei
收藏  |  浏览/下载：5/0  |  提交时间：2015/11/12
基于目标检测的视频智能监控系统设计与实现 学位论文
2011, 2011
陈思燕
收藏  |  浏览/下载：3/0  |  提交时间：2016/02/14
A Nonlinear Constrained Optimization Method of MTD Filter Design 会议论文
2011 3rd International Conference on Signal Acquisition and Processing (ICSAP 2011), Singapore, February 26-28, 2011
作者:  Bi X(毕欣);  Du JS(杜劲松)
收藏  |  浏览/下载：24/0  |  提交时间：2012/06/06

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