1)  feature transformation
特征空间变换
2)  character
特征特征
3)  characteristic
特征
1.
The Types & Characteristics of Rattan Furniture Patterns;
藤家具图案纹样类型及特征
2.
Discussion on Characteristic of Loose Subsidence Pillar and Harmfulness to Producing in Malan Coal Mine;
马兰矿松散陷落柱特征及对生产危害性分析
3.
Study on some characteristics of the investment decision in coal engineering projects;
煤炭工程项目投资决策特征研究
4)  character
特征
1.
The Analysis of Environmental and Economic Character of Industry in Three-gay Area;
三峡地区工业行业环境与经济行为特征分析
2.
Character and origin of eluvial deposits between the copper ore layers at Dongxiang mining area;
江西东乡铜矿层间溶蚀残积堆积物的特征及成因
3.
Study the Characteristics of AE Temporal Sequences in the Process of Failure and Deformation of Rock;
岩体破裂变形过程中AE时序特征研究
5)  feature
特征
1.
Nonlinear percolation feature of low permeability reservoirs and its effect;
低渗油藏非线性渗流特征及其影响
2.
The features and operating technique of Chinese uncooked wheat koji;
我国生麦制曲特征和操作技艺
3.
The Process Planning of Refine Casting Mould to Turbine Blade Based on Feature and Operation;
基于操作与精铸模特征的工艺规程设计
6)  Characteristics
特征
1.
Basical characteristics of lead-zinc mineral resources and the vista on geological prospecteing of super large scale lead-zinc deposits in Yunnan;
云南铅锌资源基本特征及超大型铅锌矿床找矿前景
2.
Characteristics and Mutative Law of Smoking Qualities of Flue-cured Tobacco from the Chiefly Producing Area in Hunan Province of China;
湖南主产烟区烤烟感官质量特征及变化规律研究
3.
Occurrence of Cryptoexplosive Breccia and Porphyry Type Orebodies in Jiguanzui Deposit and Their Characteristics;
鸡冠嘴矿床隐爆角砾岩和斑岩型矿体的存在及其特征
参考词条
补充资料:Radon变换和逆Radon变换


Radon变换和逆Radon变换


X线物理学术语。CT重建图像成像的主要理论依据之一。1917年澳大利亚数学家Radon首先论证了通过物体某一平面的投影重建物体该平面两维空间分布的公式。他的公式要求获得沿该平面所有可能的直线的全部投影(无限集合)。所获得的投影集称为Radon变换。由Radon变换进行重建图像的操作则称为逆Radon变换。Radon变换和逆Radon变换对CT成像的意义在于,它从数学原理上证实了通过物体某一断层层面“沿直线衰减分布的投影”重建该层面单位体积,即体素的线性衰减系数两维空间分布的可能性。
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