机构

• 南海海洋研究所 [1]
• 地理科学与资源研究所 [1]
• 长春光学精密机械与物... [1]
• 自动化研究所 [1]
• 沈阳自动化研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [3]
• SCI/SSCI论文 [1]
• 会议论文 [1]

发表日期

• 2020 [1]
• 2014 [1]
• 2012 [1]
• 2011 [1]
• 2010 [1]

学科主题

• Ecology; E... [1]

筛选

浏览/检索结果: 共5条，第1-5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 Variations of mesoscale eddy SST fronts based on an automatic detection method in the northern South China Sea 期刊论文  OAI收割 ACTA OCEANOLOGICA SINICA, 2020, 卷号: 39, 期号: 11, 页码: 82-90 作者:  Qiu CH(邱春华);  Ouyang, Juan;  Yu JC(俞建成);  Mao HB(毛华斌);  Qi, Yongfeng   |  收藏  |  浏览/下载：28/0  |  提交时间：2020/12/31 detection method  mesoscale eddy SST front  northern South China Sea   A model of sea surface temperature front detection based on a threshold interval SCI/SSCI论文  OAI收割 2014 Ping B.; Su F. Z.; Meng Y. S.; Fang S. H.; Du Y. Y. 收藏  |  浏览/下载：34/0  |  提交时间：2014/12/24 sea surface temperature  threshold setting  Sobel algorithm  edge  detection  front detection  edge-detection  sst images   Seasonal variability of chlorophyll a fronts in the Luzon Strait based on satellite observations 期刊论文  OAI收割 AQUATIC ECOSYSTEM HEALTH & MANAGEMENT, 2012, 卷号: 15, 期号: 1, 页码: 46-52 Qiu, CH; Wang, DX; He, ZG; Chen, CQ 收藏  |  浏览/下载：11/0  |  提交时间：2013/08/28 thermal front  edge-detection  monthly-mean image  wind-driven upwelling   Front detection on satellite images based on wavelet and evidence theory: Application to the sea breeze fronts 期刊论文  OAI收割 REMOTE SENSING OF ENVIRONMENT, 2011, 卷号: 115, 期号: 2, 页码: 306-324 作者:  Corpetti, Thomas;  Planchon, Olivier 收藏  |  浏览/下载：25/0  |  提交时间：2015/11/08 Image analysis  Front detection  Texture characterization  Wavelets  Active contour  Dempster-Shafer fusion  Sea breezes   Research on automatic Hartmann test of membrane mirror (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Zhang P. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 Electrostatic membrane mirror is ultra-lightweight and easy to acquire a large diameter comparing with traditional optical elements  so its development and usage is the trend of future large mirrors. In order to research the control method of the static stretching membrane mirror  the surface configuration must be tested. However  membrane mirror's shape is always changed by variable voltages on the electrodes  and the optical properties of membrane materials using in our experiment are poor  so it is difficult to test membrane mirror by interferometer and null compensator method. To solve this problem  an automatic optical test procedure for membrane mirror is designed based on Hartmann screen method. The optical path includes point light source  CCD camera  splitter and diffuse transmittance screen. The spots' positions on the diffuse transmittance screen are pictured by CCD camera connected with computer  and image segmentation and centroid solving is auto processed. The CCD camera's lens distortion is measured  and fixing coefficients are given to eliminate the spots' positions recording error caused by lens distortion. To process the low sampling Hartmann test results  Zernike polynomial fitting method is applied to smooth the wave front. So low frequency error of the membrane mirror can be measured then. Errors affecting the test accuracy are also analyzed in this paper. The method proposed in this paper provides a reference for surface shape detection in membrane mirror research. 2010 Copyright SPIE - The International Society for Optical Engineering.