机构

• 力学研究所 [1]
• 长春光学精密机械与物... [1]
• 上海光学精密机械研究... [1]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [2]
• 期刊论文 [1]

发表日期

• 2012 [1]
• 2010 [1]
• 2008 [1]

学科主题

• 光存储 [1]

筛选

浏览/检索结果: 共3条，第1-3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 Spectral analysis on sub-tidal variability of salinity in Modaomen waterway of Pearl River estuary, China 会议论文  OAI收割 1st International Conference on Energy and Environmental Protection, ICEEP 2012, Hohhot, China, JUN 23-24, 2012 作者:  Chen YY(陈苑盈) 收藏  |  浏览/下载：33/0  |  提交时间：2013/02/26 Estuaries  Rivers  Spectrum analysis  Tides  Time series  Modaomen waterway  Pearl River  Pearl River estuary  Phase analysis  Power spectrum method  Salinity  Sub-tidal  Tidal ranges   A real-time two-dimensional correlation speed measurement based on image (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:  Yu L. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 In order to implement two-dimensional moving object's non-contact and real-time speed measurement  in this paper  wc proposed a new method which was based on the characteristic of FPGA and a real-time two-dimensional correlation speed measurement was proposed on image processing using high speed CMOS shown in figure 1. Experimental installation was shown in figure 2  a cardboard with images which was fixed in electric control movement device was moving to simulate moving object  the CMOS image sensor gathered image signals of the cardboard and the image signals was output to FPGA after a serials pretreatment such as binaryzation etc. Logical operation insteaded mathematical operation on FPGA to implement two frames image's cross-correlation operations as the formula (10) in this paper  and finally calculate the two-dimensional velocity. Through experiment result of table 1 we drawn an conclusion the accurarcy of the method in this paper was less than 1 pixel and the method can be used at a certain speed ranges of two-dimensional  real-time speed measurement. 2010 IEEE.   静动结合的化学腐蚀法制备近场光学探针的理论分析 期刊论文  OAI收割 光学学报, 2008, 卷号: 28, 期号: s2, 页码: 367, 372 Yang Yongbin; 徐文东 收藏  |  浏览/下载：1448/247  |  提交时间：2009/09/22 光学器件  Approximate solutions  扫描近场光学显微镜  Chemical etching method combining static etching and dynamic etching  光纤探针  Cone angles  静动结合的化学腐蚀法  Fiber probe  新月形  First orders  Meniscus  Optical probes  Static and dynamics  Theoretical analyses  Time ranges