Pub Date : 2014-01-01DOI: 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.
{"title":"Micro-vibration detection of remote sensing camera under low exposure condition","authors":"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","doi":"10.3788/CO.20140706.0917","DOIUrl":"https://doi.org/10.3788/CO.20140706.0917","url":null,"abstract":"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.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76547183","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}
Pub Date : 2014-01-01DOI: 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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 10.3788/co.20140706.0889
杨秀清 Yang Xiu-qing, 陈海燕 Chen Hai-yan
{"title":"Application of optical communication technique in the Internet of Things","authors":"杨秀清 Yang Xiu-qing, 陈海燕 Chen Hai-yan","doi":"10.3788/co.20140706.0889","DOIUrl":"https://doi.org/10.3788/co.20140706.0889","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89569706","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}
Pub Date : 2014-01-01DOI: 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":null,"pages":null},"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}
Pub Date : 2014-01-01DOI: 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.
{"title":"Evaluation index of the actual resolution after correction of adaptive optical system","authors":"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","doi":"10.3788/CO.20140704.0672","DOIUrl":"https://doi.org/10.3788/CO.20140704.0672","url":null,"abstract":"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.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78769602","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}
Pub Date : 2014-01-01DOI: 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.
{"title":"Research status of blind image restoration","authors":"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","doi":"10.3788/CO.20140701.0068","DOIUrl":"https://doi.org/10.3788/CO.20140701.0068","url":null,"abstract":"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.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73386575","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}
Pub Date : 2014-01-01DOI: 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
{"title":"Construction of freeform surface based on Supporting-Ellipsoid method","authors":"顾国超 Gu Guo-chao, 刘洪波 Liu Hong-bo, 陈家奇 Chen Jia-qi, 高. G. Yan","doi":"10.3788/CO.20140705.0823","DOIUrl":"https://doi.org/10.3788/CO.20140705.0823","url":null,"abstract":"","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73410734","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}
Pub Date : 2014-01-01DOI: 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.
{"title":"Design of athermalized infrared optical system with high-speed switching and compact dual-FOV","authors":"曲贺盟 Qu Hemeng, 张. Z. Xin","doi":"10.3788/CO.20140704.0622","DOIUrl":"https://doi.org/10.3788/CO.20140704.0622","url":null,"abstract":"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.","PeriodicalId":10133,"journal":{"name":"Chinese Journal of Optics and Applied Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83034807","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}
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