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浏览/检索结果: 共15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 Large-Scale Semantic Scene Understanding with Cross-Correction Representation 期刊论文  OAI收割 REMOTE SENSING, 2022, 卷号: 14, 期号: 23, 页码: 15 作者:  Zhao, Yuehua;  Zhang, Jiguang;  Ma, Jie;  Xu, Shibiao   |  收藏  |  浏览/下载：21/0  |  提交时间：2023/03/20 point cloud  large-scale semantic segmentation  spatial geometric  semantic context  cross-correction   Region similarity arrangement for large-scale image retrieval 期刊论文  OAI收割 NEUROCOMPUTING, 2018, 卷号: 272, 页码: 461-470 作者:  Zhang, Dongming;  Tang, Jingya;  Jin, Guoqing;  Zhang, Yongdong;  Tian, Qi   |  收藏  |  浏览/下载：18/0  |  提交时间：2019/12/12 Content based image retrieval  Geometric verification  Region property space  Spatial weighting   自然场景中的商标检测与识别技术研究 学位论文  OAI收割 工学博士, 中国科学院自动化研究所: 中国科学院大学, 2014 作者:  张渊 收藏  |  浏览/下载：110/0  |  提交时间：2015/09/02 商标检测识别  空间连通域描述子  几何过滤  商标密度  个性化商标匹配  trademark detection and recognition  spatial connected component descriptor  geometric filtering  trademark density  individualized matching   Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE) 会议论文  OAI收割 作者:  Lin G.-Y. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution  high spectral resolution  and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror  it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating  which make the anterior Wadsworth condition fulfilling each wavelength  is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.   Effect of the sampling design of ground control points on the geometric correction of remotely sensed imagery 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2012, 卷号: 18, 页码: 91-100 Wang, JH(王江浩); Ge, Y; Heuvelink, GBM; Zhou, CH; Brus, D 收藏  |  浏览/下载：19/0  |  提交时间：2012/08/30 Geometric correction  Spatial coverage sampling  Universal kriging  Variogram  Model-based sampling   Effect of the sampling design of ground control points on the geometric correction of remotely sensed imagery SCI/SSCI论文  OAI收割 2012 作者:  Ge Y. 收藏  |  浏览/下载：22/0  |  提交时间：2014/12/24 Geometric correction  Spatial coverage sampling  Universal kriging  Variogram  Model-based sampling  resolution satellite imagery  accuracy  registration  algorithm  model   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：27/0  |  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.   Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach 期刊论文  OAI收割 EARTH SURFACE PROCESSES AND LANDFORMS, 2008, 卷号: 33, 期号: 5, 页码: 712-723 Ma Ting; Zhou Chenghu; Zhu Tongxin; Cai Qiangguo 收藏  |  浏览/下载：186/5  |  提交时间：2011/03/25 splash erosion  spatial cell  raindrop size distribution function  geometric probability   Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach 期刊论文  OAI收割 EARTH SURFACE PROCESSES AND LANDFORMS, 2008, 卷号: 33, 期号: 5, 页码: 712-723 作者:  Cai, Qiangguo;  Ma, Ting;  Zhou, Chenghu(周成虎) 收藏  |  浏览/下载：40/0  |  提交时间：2011/05/25 splash erosion  spatial cell  raindrop size distribution function  geometric probability   Modelling raindrop impact and splash erosion processes within a spatial cell: a stochastic approach SCI/SSCI论文  OAI收割 2008 作者:  Ma T. 收藏  |  浏览/下载：20/0  |  提交时间：2012/06/08 splash erosion  spatial cell  raindrop size distribution function  geometric probability  size distribution  soil detachment