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Chinese Journal of Optics and Applied Optics最新文献

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Micro-vibration detection of remote sensing camera under low exposure condition 低曝光条件下遥感相机微振动检测
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140706.0917
乐国庆 Le Guo-Qing, 郭永飞 Guo Yong-fei, 刘春香 Liu Chun-xiang, 马天波 Ma Tian-bo, 石俊霞 Shi Jun-xia
To deal with the effect of flutter of carrying platform on remote sensing camera,motion estimation algorithm can be used to the image sequences taken by auxiliary high-speed array CCD camera during exposure to estimate the vibration. Pixel binnng is proposed to compensate the time of exposure and to improve the brightness and contrast as well as SNR of the images. And a region selection algorithm is used to select the image region by which we can estimate the displacement using gray projection algorithm. The experiment results show that the error is 1 pixel by utilizing the improved algorithm,which greatly enhance the accuracy and stability.
为了解决承载平台颤振对遥感相机的影响,可以对辅助高速阵列CCD相机在曝光过程中拍摄的图像序列进行运动估计算法来估计振动。为了补偿曝光时间,提高图像的亮度、对比度和信噪比,提出了像素分割的方法。采用区域选择算法对图像区域进行选择,然后利用灰度投影算法对图像区域进行位移估计。实验结果表明,改进后的算法误差为1个像素,大大提高了算法的精度和稳定性。
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引用次数: 0
Mean-shift tracking algorithm and its application in optoelectronic tracking system Mean-shift跟踪算法及其在光电跟踪系统中的应用
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140702.0332
王铭明 Wang Ming-ming, 陈. C. Tao, 王建立 Wang Jian-li, 阴玉梅 Yin Yu-mei
{"title":"Mean-shift tracking algorithm and its application in optoelectronic tracking system","authors":"王铭明 Wang Ming-ming, 陈. C. Tao, 王建立 Wang Jian-li, 阴玉梅 Yin Yu-mei","doi":"10.3788/CO.20140702.0332","DOIUrl":"https://doi.org/10.3788/CO.20140702.0332","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"12 1","pages":"332-338"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91439532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Current status and development tendency of image stabilization system of large aperture space telescope 大口径空间望远镜稳像系统的现状及发展趋势
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140705.0739
曹小涛 Cao Xiao-tao, 孙天宇 Sun Tian-yu, 赵运隆 Zhao Yun-long, 王. W. Dong, 郭权锋 Guo Quan-feng
{"title":"Current status and development tendency of image stabilization system of large aperture space telescope","authors":"曹小涛 Cao Xiao-tao, 孙天宇 Sun Tian-yu, 赵运隆 Zhao Yun-long, 王. W. Dong, 郭权锋 Guo Quan-feng","doi":"10.3788/CO.20140705.0739","DOIUrl":"https://doi.org/10.3788/CO.20140705.0739","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"6 1","pages":"739-748"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81465721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
optical parametric oscillators 光学参量振荡器
Pub Date : 2014-01-01 DOI: 10.3788/co.20140705.0723
田金荣 Tian Jin-rong, 刘京徽 Liu Jing-hui, 宋晏蓉 Song Yanrong, 张新平 Zhang Xin-ping
{"title":"optical parametric oscillators","authors":"田金荣 Tian Jin-rong, 刘京徽 Liu Jing-hui, 宋晏蓉 Song Yanrong, 张新平 Zhang Xin-ping","doi":"10.3788/co.20140705.0723","DOIUrl":"https://doi.org/10.3788/co.20140705.0723","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"31 1","pages":"723-730"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81647441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of optical communication technique in the Internet of Things 光通信技术在物联网中的应用
Pub Date : 2014-01-01 DOI: 10.3788/co.20140706.0889
杨秀清 Yang Xiu-qing, 陈海燕 Chen Hai-yan
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引用次数: 1
Space heat flux simulation and programmable load for thermal test of space optical remote sensor 空间光学遥感器热试验空间热流模拟与可编程负载
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140706.0982
关奉伟 Guan Feng-wei, 刘巨 Liu Ju, 于善猛 Yu Shan-meng, 黄. H. Yong, 崔抗 Cui Kang
{"title":"Space heat flux simulation and programmable load for thermal test of space optical remote sensor","authors":"关奉伟 Guan Feng-wei, 刘巨 Liu Ju, 于善猛 Yu Shan-meng, 黄. H. Yong, 崔抗 Cui Kang","doi":"10.3788/CO.20140706.0982","DOIUrl":"https://doi.org/10.3788/CO.20140706.0982","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":"11 1","pages":"982-988"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84317354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Evaluation index of the actual resolution after correction of adaptive optical system 自适应光学系统校正后实际分辨率的评价指标
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140704.0672
卫沛锋 Wei Peifeng, 刘欣悦 Liu Xin-yue, 林旭东 Lin Xu-dong, 董. D. Lei, 王鸣浩 Wang Ming-hao
A new index,Resolved Cells Ratio( RCR),was proposed to evaluate the actual resolution of ground-based large-aperture telescope for spatial objective observation after adaptive optical system partial correcting. We discussed the physical meaning of the RCR combined with the observation instances of the 1. 23 adaptive optical telescope. The range of the application of the RCR,the error influence factors and the effect of the atmospheric dispersion on the RCR were also analyzed. The result shows that the RCR could completely reflect the correction effectiveness of the adaptive optical telescope and the physical meaning of the RCR wasintuitive. RCR can be applied to the estimation of the correction effectiveness of a telescope that can get the characterization of the wavefront. The error of the RCR mainly depend on the measurement error of the wavefront sensor. The effect of atmospheric dispersion on the RCR can be neglected.
提出了一种新的自适应光学系统部分校正后地面大口径望远镜空间物镜观测实际分辨率评价指标——分辨单元比(Resolved Cells Ratio, RCR)。结合1的观测实例,讨论了RCR的物理意义。23 .自适应光学望远镜。分析了RCR的适用范围、误差影响因素以及大气色散对RCR的影响。结果表明,RCR能完全反映自适应光学望远镜的校正效果,RCR的物理意义直观。RCR可以用于估计望远镜的校正效果,从而得到波前的特征。RCR的误差主要取决于波前传感器的测量误差。大气色散对RCR的影响可以忽略不计。
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引用次数: 0
Research status of blind image restoration 图像盲恢复的研究现状
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140701.0068
曹雷 Cao Lei, 陈洪斌 Chen Hongbin, 邱. Q. Qi, 张建林 Zhang Jian-lin, 任. R. Ge, 徐智勇 Xu Zhi-yong, 张彬 Zhang Bin
Blind image restoration is an approach to estimate both the original image and the point spread function from degraded images,when there is no or little knowledge of the point spread function of the degraded process. In this paper,the main algorithms of blind image restoration are reviewed and classified into four types,according to their theory origins and relationships,and analysis is made for all the types of blind image restoration algorithms and relevant improved algorithms. This will be helpful to better understand the theory of blind image restoration and to restore degraded images.
图像盲恢复是在不知道或很少知道退化过程的点扩散函数的情况下,从退化图像中估计原始图像和点扩散函数的一种方法。本文对图像盲恢复的主要算法进行了综述,根据其理论渊源和相互关系将其分为四类,并对各类图像盲恢复算法及其改进算法进行了分析。这将有助于更好地理解盲图像恢复理论,并对退化图像进行恢复。
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引用次数: 7
Construction of freeform surface based on Supporting-Ellipsoid method 基于支撑椭球体法的自由曲面构造
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140705.0823
顾国超 Gu Guo-chao, 刘洪波 Liu Hong-bo, 陈家奇 Chen Jia-qi, 高. G. Yan
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引用次数: 0
Design of athermalized infrared optical system with high-speed switching and compact dual-FOV 高速开关紧凑型双视场热化红外光学系统的设计
Pub Date : 2014-01-01 DOI: 10.3788/CO.20140704.0622
曲贺盟 Qu Hemeng, 张. Z. Xin
In this paper,a refractive optical system with secondary image is adopted to realize 1. 67 F number and 4. 6 zoom ratio,and the ratio between the total length and focal length is 1,and the zooming lens group is driven by solenoid pilot actuated valve switching structure to complete zooming in 60 ms. In addition,an optical passive compensation method is used to realize an athermalized design in the range of- 40 ~ + 50 ℃ by choosing proper optical and structural materials. The design results show that the optical system's modulation transfer function in each field is close to the diffraction limit at different temperatures under the characteristic frequency of 20 lp /mm and the system size is compact with fast FOV switching. Finally,it is proved that this dual-FOV infrared optical system can meet the requirements for application.
本文采用带二次像的折射光学系统来实现1。67 F数字和4。6变焦比,总长与焦距之比为1,变焦镜头组由电磁导动阀开关结构驱动,在60ms内完成变焦。此外,通过选择合适的光学材料和结构材料,采用光学无源补偿方法实现了- 40 ~ + 50℃范围内的热化设计。设计结果表明,在20 lp /mm的特征频率下,光学系统在不同温度下各视场的调制传递函数都接近衍射极限,系统尺寸紧凑,视场切换速度快。最后,验证了该双视场红外光学系统能够满足实际应用的要求。
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引用次数: 1
期刊
Chinese Journal of Optics and Applied Optics
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