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基于几何结构属性的光学和SAR影像自动配准 被引量:13
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作者 叶沅鑫 郝思媛 曹云刚 《红外与毫米波学报》 SCIE EI CAS CSCD 北大核心 2017年第6期720-726,共7页
提出了一种基于几何结构属性的光学和合成孔径雷达(Synthetic Aperture Radar,SAR)影像配准方法.该方法引入了具有光照不变性的相位一致性模型进行影像特征提取,采用该模型的强度和方向信息构建了一种几何结构特征描述符—相位一致性方... 提出了一种基于几何结构属性的光学和合成孔径雷达(Synthetic Aperture Radar,SAR)影像配准方法.该方法引入了具有光照不变性的相位一致性模型进行影像特征提取,采用该模型的强度和方向信息构建了一种几何结构特征描述符—相位一致性方向直方图(histogram of orientated phase congruency,HOPC),并根据该描述符间的欧式距离定义了影像匹配的相似性测度(称为HOPC_n).该测度能表示影像间的几何结构相似性.通过选择4组光学和SAR影像进行试验,结果表明,HOPC_n能有效率的抵抗影像间的非线性辐射差异,并且其匹配性能好于经典的相似性测度.另外,也设计了一种基于HOPC_n自动的配准方法,试验结果证明了该方法的有效率和鲁棒性. 展开更多
关键词 图像配准 相位一致性 几何结构属性 相似性测度
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Morphological and Structural Categories: Geometric Attributes of the Form of Places
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作者 Mafia Angela Dias 《Journal of Civil Engineering and Architecture》 2012年第11期1453-1463,共11页
The author knows how to interpret the city is a complex task that met the physical form and also all the images that are transmitted by the sensations. However the aim of this paper is to demonstrate the importance of... The author knows how to interpret the city is a complex task that met the physical form and also all the images that are transmitted by the sensations. However the aim of this paper is to demonstrate the importance of studying the morphological categories, using the geometric attributes of the shape of places, facilitating the development of three-dimensional view of the architects, in particular for students of architecture. This article is part of the Project "Education of the Eye" which introduces the training of the eye as a strategy to understand the architectural forms characterizing the volumetric space (architectural, urban and landscaping), through the polyhedra and their relationships. It is linked to the research line Teaching of Architecture Graduate Program in Architecture -- PROARQ-FAU/UFRJ. The investigation of the way in this direction, interacts with the knowledge produced by the groups SEL-RJ -- Research Group on Systems of Open Spaces in Rio de Janeiro, ProLUGAR -- Design and Quality of Place and EAG-Education-Environment Group. 展开更多
关键词 Urban morphology geometry and morphology MORPHOLOGY geometric attributes
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