1) power law scaling
乘幂尺度变换
1.
The fitness power law scaling is introduced to improve the strandard genertic algorithms of elitist stratery from capability and convergence rates.
利用适应度乘幂尺度变换的方法,从算法的性能和收敛速度改进了普通的杰出者记录策略的遗传算法,从理论上给出了收敛性的证明,最后给出了数值实例的验证。
2) Scale-transformation
尺度变换
1.
The expression of electric charge distribution on the surface for an ellipsoidal conductor is presented by utilizing the electromagnetic scale-transformation and the space electromagnetic characteristic.
从电磁尺度变换关系出发,考虑了由于尺度伸缩所引起的空间电磁特性的变化,得到了导体椭球上的电荷分布表达式,在椭球的三个半轴相等时,该表达式退回到导体球上的电荷分布;将所得结果与有关文献结果进行了数值比较,发现本文所得结果优于有关文献结果。
3) image resizing
尺度变换
1.
A digital image resizing algorithm based on the linear relationship between the coefficients of two different sub-blocks transformations is presented,which possesses the capability of arbitrarily image resizing with fixed aspect ratio or no-fixed aspect ratio in compressed domain.
在研究Jiang等提出的块DCT系数和其子块的DCT系数之间的空间变换关系的基础上,结合DCT系数的性质,提出了一种直接在DCT域实现图像任意尺度倍数变换的快速有效算法,该算法不仅可实现锁定纵横比的图像尺度变换,也可实现不锁定纵横比的图像尺度变换。
2.
This paper proposed a fast and efficient image resizing method based on the spatial relationship of discrete cosine transformation (DCT) coefficients between a block and its sub-blocks.
该算法不仅解决了先前算法无法在压缩域实现任意分数倍变换的问题,而且具有较好的效果和较小的运算量,该方法可广泛应用在MPEG、JPEG等基于DCT的压缩图像尺度变换中。
3.
In this paper, we present a digital image resizing algorithm based on the linear relationship between the coefficients of two different sub-blocks transformations, which possesses the capability of arbitrarily image resizing with Fixed aspect ratio or No-fixed aspect ratio in compressed domain.
本文在研究Jiang等提出的块DCT系数和其子块的DCT系数之间的空间变换关系的基础上, 结合DCT系数的性质,提出了一种直接在DCT域实现图像任意尺度倍数变换的快速有效算法,该算法不仅可实现锁定纵横比的图像尺度变换,也可实现不锁定纵横比的图像尺度变换。
4) scaling
[英]['skeiliŋ] [美]['skelɪŋ]
尺度变换
1.
Application of Scaling in Simulation of High Order Interconnect Model;
尺度变换在互连线高阶模型仿真中的应用
2.
The approach of scaling must be applied into researches.
铁路地理信息系统是一个具有等级结构的复杂系统,包含了各种尺度的空间信息,这就需要在实际应用中进行空间信息的多尺度变换。
5) scale transform
尺度变换
1.
The invariability of orderly connections of decreasing mean residual life distribution in translation transform and scale transform is investigated and it is given that life distribution is a sufficient and necessary condition for decreasing mean residual life distribution.
研究了平均剩余寿命递减的寿命分布类的偏序关系在平移变换和尺度变换下的不变性 ;给出了寿命分布是平均剩余寿命递减的寿命分布类的一个充分必要条
2.
It is proved that the DMRL ordering is maintained under the translation and scale transforms.
证明了 DMRL偏序关系在平移和尺度变换下的不变性 ,并获得了一个充分必要条件 。
3.
To deal with the disadvantages of Chan-Vese model(C-V model),such as convergence slowness,a level set image segmentation algorithm based on scale transform of edge detection function is proposed.
针对Chan-Vese模型(C-V模型)存在收敛缓慢等缺陷,给出一种基于边缘检测函数尺度变换的水平集图像分割算法。
6) scale transformation
尺度变换
1.
Nonparametric identification approach based on wavelet (approximation) and scale transformation;
基于小波逼近和尺度变换的非参数辨识方法
2.
On the basis of fractal observation and research results for fracture strike grouping distribution,a scale transformation expression of rock mass anisotropy is presented for linear density of fracture and permeability.
以岩体裂缝分组分布的分形规律观测与研究结果为基础,针对岩体线密度与渗透系数,给出了各向异性的尺度变换表达式。
3.
The Hawking effect in 1+1 dimensions can be regarded as a compensate effect under the coordinate-scale transformation.
教授）关键词Ｈａｗｋｉｎｇ效应；补偿场；尺度变换；１＋１维分类号Ｐ１４５。
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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条