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• 上海光学精密机械研究... [5]
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• OAI收割 [12]
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• 期刊论文 [13]
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• 光学 [1]
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筛选

浏览/检索结果: 共14条，第1-10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 Spatial coherence of variations in seasonal extreme precipitation events over Northwest Arid Region, China 期刊论文  iSwitch采集 INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2015, 卷号: 35, 期号: 15, 页码: 4642-4654 作者:  Wang, Shaoping;  Jiang, Fengqing;  Ding, Yongjian 收藏  |  浏览/下载：39/0  |  提交时间：2019/10/09 spatial coherence  extreme precipitation indices  heavy and torrential precipitation thresholds  REOF  Northwest Arid Region, China   Coherence of X-ray in the third synchrotron radiation source 期刊论文  OAI收割 ACTA PHYSICA SINICA, 2014, 卷号: 63, 期号: 10 Qi, JC; Ye, LL; Chen, RC; Xie, HL; Ren, YQ; Du, GH; Deng, B; Xiao, TQ 收藏  |  浏览/下载：22/0  |  提交时间：2015/03/13 GRATING INTERFEROMETER  SPATIAL COHERENCE  TOMOGRAPHY  OPTICS   Personalized Search Strategies for Spatial Information on the Web 期刊论文  OAI收割 IEEE INTELLIGENT SYSTEMS, 2012, 卷号: 27, 期号: 1, 页码: 12-20 作者:  Yang, Yanwu 收藏  |  浏览/下载：23/0  |  提交时间：2015/08/12 Semantics  Intelligent systems  Search methods  Taxonomy  Search engines  Web search  Information retrieval  Spatial coherence  spatial information retrieval  personalized search  spatial web personalization  spatial proximity   Automatic bridge extraction for optical images (EI CONFERENCE) 会议论文  OAI收割 6th International Conference on Image and Graphics, ICIG 2011, August 12, 2011 - August 15, 2011, Hefei, Anhui, China Gu D.-Y.; Zhu C.-F.; Shen H.; Hu J.-Z.; Chang H.-X. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 This paper describes a novel hierarchy algorithm for extracting bridges over water in optical images. To reduce the omission of bridges by searching the edge  we extract the river regions which the bridges are included in. Firstly  we segment the optical image to get the coarse water bodies using iterative threshold  eliminate the noise regions and add the missing regions based on k-means clustering with texture information and spatial coherence. Then  the blanks are connected based on shape features and candidate bridge regions are segmented from river regions. Finally  the bridges are verified by geometric information and the ubiety between bridges and river. The results show that this approach is efficient and effective for extracting bridges in satellite image from Google Earth and in aerial optical images acquired by unmanned aerial vehicle. 2011 IEEE.   Dark incoherent spatial solitons in logarithmically saturable nonlinear media 期刊论文  OAI收割 chinese physics b, 2009, 卷号: 18, 期号: 6, 页码: 2359-2363 作者:  Zhang Yi-Qi;  Lu Ke-Qing;  Zhang Mei-Zhi;  Li Ke-Hao;  Liu Shuang 收藏  |  浏览/下载：157/7  |  提交时间：2010/01/17 incoherent spatial solitons  coherence length  logarithmically nonlinear media   Local asymptotic coherence of time-varying discrete ecological networks 期刊论文  OAI收割 AUTOMATICA, 2009, 卷号: 45, 期号: 2, 页码: 546-552 作者:  Chen, Liang;  Lu, Jinhu;  Lu, Jun-an;  Hill, David John   |  收藏  |  浏览/下载：22/0  |  提交时间：2018/07/30 Coherence  Spatial synchrony  Biological control  Metapopulation dynamics  Time-varying ecological networks   One-shot parallel complex Fourier-domain optical coherence tomography using a spatial carrier frequency 期刊论文  OAI收割 opt. eng., 2008, 卷号: 47, 期号: 5, 页码: 50502 步鹏; 王向朝; Sasaki Osami 收藏  |  浏览/下载：1110/195  |  提交时间：2009/09/18 optical coherence tomography  interferometry  spatial carrier frequency   Spatial longitudinal coherence length of a thermal source and its influence on lensless ghost imaging 期刊论文  OAI收割 opt. lett., 2008, 卷号: 33, 期号: 8, 页码: 824, 826 Liu Honglin; 韩申生 收藏  |  浏览/下载：854/131  |  提交时间：2009/09/18 Spatial longitudinal coherence length (SLCL)  Thermal sources   Effect of atmospheric turbulence on the spatial coherence of quasi-monochromatic-gaussian schell-model beams propagating in the slant path 期刊论文  iSwitch采集 Acta physica sinica, 2008, 卷号: 57, 期号: 1, 页码: 634-638 作者:  Wang Hua;  Wang Xiang-Zhao;  Zeng Ai-Jun;  Yang Kun 收藏  |  浏览/下载：28/0  |  提交时间：2019/05/10 Atmospheric optics  Spatial coherence  Gaussian schell-model beams  Propagating in the slant path   The far-field spatial coherence of Gaussian Schell-model beam in turbulence in terms of position vectors 期刊论文  OAI收割 optik, 2008, 卷号: 119, 期号: 8, 页码: 353, 358 Lu Wei; 刘立人; 孙建锋; Li Dashan 收藏  |  浏览/下载：1020/173  |  提交时间：2009/09/18 Coherence degradation  Far field spatial coherence  Position vectors  Radiant intensity  Spectral degree of coherence