中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
  • 长春光学精密机械与... [32]
采集方式
内容类型
  • 会议论文 [32]
发表日期
学科主题
筛选

浏览/检索结果: 共32条，第1-10条 帮助

限定条件                    
条数/页： 排序方式：
Phase retrieval using regularization method in intensity correlation imaging 会议论文  OAI收割
International Symposium on Optoelectronic Technology and Application 2014: Imaging Spectroscopy; and Telescopes and Large Optics, IPTA 2014, May 13, 2014 - May 15, 2014, Beijing, China
作者:  Wang B.;  Wang J.;  Gao X.;  Wang B.
收藏  |  浏览/下载：10/0  |  提交时间：2015/04/27
Design of optical electronic watch system based on multi-sensor 会议论文  OAI收割
3rd International Conference on Advanced Engineering Materials and Technology, AEMT 2013, May 11, 2013 - May 12, 2013, Zhangjiajie, China
Wu C.; Lu J. F.; He B. G.
收藏  |  浏览/下载：19/0  |  提交时间：2014/05/15
Realization of the Imaging-Auto-Focus on the APRC Using Splicing-CCD 会议论文  OAI收割
2011
Lu Z. H.; Guo Y. F.; Xue X. C.; Ma T. B.; Lv H. Y.
收藏  |  浏览/下载：6/0  |  提交时间：2013/03/28
A new accurate and fast algorithm of sub-pixel image registration (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
作者:  He B.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
In terms of large field view and multi-channel TDICCD remote sensing images  previous interpolation methods and curve fitting methods are not able to achieve the high accuracy and fast registration  and their noise immunity and robustness is not high. For that  this paper presents a more accurate and faster method  iterative pixel interpolation and surface fitting method. Firstly  the method uses the some overlapping pixels between multi-channel images. Secondly  the proposed technique  which is based on the maximization of the correlation coefficient function  combines an efficient pixel-moving interpolation scheme with surface fitting  which makes use of accurate interpolation calculation and fast surface fitting in the iterative process. Finally  the accuracy and speed of the algorithm is evaluated by sub-pixel registration of multi-channel images and comparison with other sorts of efficient methods. The experiment results show that the accuracy of the method reaches 0.01 pixels and it is 3 times faster than the interpolation method. In the registration of large field view and multi-channel TDICCD images  the method is accurate and fast  with greatly high stability  noise immunity and robustness. 2010 IEEE.  
A new research of sub-pixel level accuracy of TDICCD remote sensing image registration (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者:  He B.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
In the field of remote sensing imaging  TDICCD remote sensing images have a lot of their own characteristics  such as high-resolution  large amount of information  less overlapping parts of pixels  additional image blurring etc. Therefore  there exist many difficulties  especially in terms of high-accuracy registration of pairs of images. For that  this paper presents two new pixel interpolation method for sub-pixel level registering images that allows for scaling  translation and rotation. The proposed technique  which is based on the maximization of the correlation coefficient function  combines an efficient pixel-moving interpolation scheme with surface fitting  which greatly reduces the overall computational cost. The accuracy of the algorithm is evaluated by calculating correlation coefficient of couples of points belonging to images transformed with preset factors and also comparing it to other sorts of methods. The experiment results show that the accuracy of registration reaches 0.01 pixels. 2010 IEEE.  
A New Accurate and Fast Algorithm of Sub-Pixel Image Registration 会议论文  OAI收割
2010
作者:  He B.
收藏  |  浏览/下载：1/0  |  提交时间：2013/03/28
Shape and Alignment measurement of the heliostat by laser deflectometry 会议论文  OAI收割
2008
作者:  Liu H.;  Liu H.;  Liu H.
收藏  |  浏览/下载：6/0  |  提交时间：2013/03/28
Characteristics of ZnMgO-based metal-semiconductor-metal photodetectors (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Photoelectronic Imaging and Detection, September 9, 2007 - September 12, 2007, Beijing, China
作者:  Zhang J.;  Li B.;  Li B.;  Li B.;  Zhao Y.
收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25
In recent years  ZnMgO semiconductor alloys  with a direct bandgap tunable between 3.37 eV and 7.8 eV  become one of the most suitable materials for the fabrication of ultraviolet detectors. In this paper  we have fabricated metal-semiconductor-metal photodetectors on 1-m thick Zn 0.8Mg0.2O films. The interdigital metal electrodes are 500 m long and 5 m wide with an interelectrode spacing 2 m  5 m and 10 m  respectively. Zn0.8Mg0.2O films were grown on quartz by ratio frequency magnetron sputtering at 500C. Dark current  spectral responsivity and pulse response were carried out for the devices with different finger pitches. All the photodetectors showed the peak responsivity at 330 nm and the ultraviolet-visible rejection ratio (R330 nm/R400 nm) is more than four orders of magnitude at 3 V bias. For the device with 2 m finger pitch  the detectivity was calculated as 4.21011 cm Hz 1/2/W at 330 nm. Furthermore  the transient response measurement for all devices revealed similar rise time of 10 ns. The 90%-10% fall times are 130 ns  170 ns and 230 ns for the devices with different finger pitches of 2 m  5 m and 10 m  respectively..  
Characteristics of ZnMgO-based metal-semiconductor-metal photodetectors - art. no. 662116 会议论文  OAI收割
2008
Liu K. W.; Shen D. Z.; Zhang J. Y.; Lu Y. M.; Jiang D. Y.; Zhao Y. M.; Ll B. H.; Zhao D. X.; Zhang Z. Z.; Yao B.
收藏  |  浏览/下载：10/0  |  提交时间：2013/03/28
Temperature dependence of carrier transfer and exciton localization in ZnO/MgZnO heterostructure (EI CONFERENCE) 会议论文  OAI收割
作者:  Zhang J.;  Zhang J.;  Zhang J.;  Li B.;  Li B.
收藏  |  浏览/下载：10/0  |  提交时间：2013/03/25