机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]
• 合肥物质科学研究院 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2020 [2]
• 2016 [1]
• 2009 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Monitoring surface water area variations of reservoirs using daily MODIS images by exploring sub-pixel information 期刊论文  OAI收割 ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2020, 卷号: 168, 页码: 141-152 作者:  Ling, Feng;  Li, Xinyan;  Foody, Giles M.;  Boyd, Doreen;  Ge, Yong   |  收藏  |  浏览/下载：40/0  |  提交时间：2021/03/16 MODIS  Sub-pixel analysis  Surface water  Reservoir area   Monitoring surface water area variations of reservoirs using daily MODIS images by exploring sub-pixel information 期刊论文  OAI收割 ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2020, 卷号: 168, 页码: 141-152 作者:  Ling, Feng;  Li, Xinyan;  Foody, Giles M.;  Boyd, Doreen;  Ge, Yong   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/03/16 MODIS  Sub-pixel analysis  Surface water  Reservoir area   Automatic chessboard corner detection method 期刊论文  OAI收割 IET IMAGE PROCESSING, 2016, 卷号: 10, 期号: 1, 页码: 16-23 作者:  Liu, Yu;  Liu, Shuping;  Cao, Yang;  Wang, Zengfu 收藏  |  浏览/下载：22/0  |  提交时间：2018/01/25 Cameras  Calibration  Edge Detection  Statistical Analysis  Automatic Chessboard Corner Detection Method  Chessboard Pattern-based Camera Calibration Technique  Hessian Corner Detector  Fake Corner Elimination  Sub-pixel Location  Statistical Approach  Computational Efficiency   Resolution performance of extreme ultraviolet telescope (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Yang L.;  Chen B.;  Chen B.;  Liang J.-Q.;  Ni Q.-L. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 Extreme Ultraviolet Telescope (EUT) will image solar corona in four EUV narrow bandpasses defined by multilayered coatings deposited on normal incidence optics. In order to make sure it will get sub-arcsecond angular resolution in the mission we have to test its resolution performance on ground. The EUT is aligned by Zygo interferometer first and a global wavefront error of 0.152 peak to valley is obtained ( = 632.8nm ). Because of the difficulty of angular resolution test for EUT at its operating wavelengths  we test its optical performance at visible and UV band. The method is to place the resolution test-target on the focal plane of collimator and illuminate the target by visible and UV light espectively  then the collimated light will go through EUT and image at focal plane on CCD. By analysis of the images obtained in experiments we conclude that the angular resolution of EUT is 1.22 at visible light ( = 570nm ) which is very close to diffraction limit (1.20) and according to these results we estimate that the operational wavelength resolution is better than 0.32  meets design requirements. While for UV light  the angular resolution is 1.53 that is different from diffraction limit (0.53)  the error comes mainly from large pixel of EUV camera. 2009 SPIE.