对数变换,logarithmic transformation
1)logarithmic transformation对数变换
1.On the basis of calculation and analysis of statistical parameters of measured monthly rainfall sequences of thirty-three years in Guangzhou area, performslogarithmic transformation of the monthly rainfall sequences, and develops a stochastic simulation model of monthly rainfall by the first order AR(P) model.在计算与分析广州地区33年实测月降水量序列统计参数的基础上,将月降水量序列进行对数变换,采用一阶AR(P)模型建立了月降水量随机模拟模型。
2.A new image fusion method is proposed on the basis of combining Brovey transform withlogarithmic transformation for intensity modulation.分析了的Brovey变换融合算法,提出了一种新的基于Brovey变换、对数变换亮度调整的图像融合方法,试验数据的对比和分析证明了其保留多光谱影像的光谱信息。
英文短句/例句
1.AN IMPROVED GREY GM(1,1)MODEL BASED ON THE LOGARITHMIC TRANSTORMATION METHOD基于对数变换的灰色GM(1,1)改进模型
2.FIELD COLLECTED PLANT SPECTRUM DENOISING BY LOGARITHM TRANSFORM AND WAVELET TRANSFORM对数变换与小波变换用于野外采集植物波谱降噪
3.Logarithmic Transformation Test Based on Relative Risk for Matched-Pair Design配对设计下相对危险度的对数变换检验
4.An Infeasible Interior Point Algorithm for Convex Quadratic Programming Based on Logarithmic Transformation;基于对数变换的凸二次规划不可行内点算法
5.Implementation of Continuous Wavelet Transform by BiCMOS Log-domain Current Mode Circuit;连续小波变换的BiCMOS对数域电路实现
6.The PSpice research on the parameters of buck DC/DC converterPSpice对Buck变换器参数的仿真研究
7.Realization of log analog filter of continuous wavelet transform连续小波变换的对数模拟滤波器实现
8.A New Algorithm for Target Recognition Based on Log-Polar Transform基于对数极坐标变换的目标识别算法
mutator type analog-digital converter换向器型模－数变换器
10.Implications of Constructivism to the Teaching of Complex Variables and Integral Commutation;建构主义对复变函数与积分变换教学的启示
11.Extension Data Mining Based on Products Sales According to Change of CPICPI指数变换对产品销售影响的可拓数据挖掘
12.Functions of Complex Variables & Integral Transformatio复变函数与积分变换
13.counting type ad converter计数方式模数变换器
14.count type analog to digital conversion计数型模拟数字变换
15.For slow replacement the age distribution function assumed is unimportant.对缓慢置换，假设的时龄分布函数变得不重要。
16.APPLICATION OF WALSH TRANSFORMATION TO DIGITAL SIGNALS PROCEEDING AND TRANSMISSION沃尔什变换对数字信号处理及传输的应用
17.Implementation of Continuous Wavelet Transform by Using Companding Log-domain Circuit;连续小波变换的瞬时缩展对数域电路实现
18.Numerical Study of Convex Lens Transform Property for Broadband Laser Beam;凸透镜对宽带激光束变换特性的数值研究
相关短句/例句
logarithmic contrary(transform)反对数变换
3)change of base in logarithms对数底变换
4)loglog transformation重对数变换
5)log-polar transform对数极坐标变换
1.Mutual information image registration based onlog-polar transform对数极坐标变换域下互信息图像配准方法
2.Thelog-polar transform (LPT) is utilized and an anti-rotation and anti-scale image matching algorithm is proposed based on the image edge feature point extraction.在惯性导航系统中,定量分析了景象匹配过程中惯性导航系统漂移和无线电气压高度表测量误差对实测图的旋转和尺度所造成的影响,引入了对数极坐标变换。
3.Secondly,by using the scaling and rotation invariance oflog-polar transform,the changes of object scale and rotation are converted into transformation in orthogonal coordinate;.该算法首先在当前帧对应位置进行降分辨率处理,并以基于增量试探的meanshift跟踪算法收敛点作为当前帧目标中心位置,进而利用对数极坐标变换的旋转、尺度不变性,对目标和候选目标分别进行对数极坐标映射,并通过求取最大归一化相关函数确定目标的尺度变化。
6)Log-polar transformation对数极坐标变换
1.This paper presents a fast log-polar transformation(LPT) algorithm,which speeds up processing from Cartesian coordinates to log-polar coordinates as well as speeding up image matching by using a dual-axis projection algorithm.针对这一问题,提出了一种快速对数极坐标变换算法,加快了从笛卡儿坐标转换到对数极坐标的过程。
2.The proposed algorithm is as follows:SUSAN algorithm used to obtain the feature corner points(interesting points) of the two images;log-polar transformation and projection correlation matching algorithm used to acquire the registration parameter of the two images.算法首先使用SUSAN算子提取两幅图像的特征角点,然后使用对数极坐标变换和投影相关匹配算法实现特征点匹配。
延伸阅读
对数变换分子式：CAS号：性质：又称对数变换。吸光度与试样中待测物质浓度成正比，它为透光率倒数的对数。测量用光度计仅接收透光率，故需进行对数转换。简单方法是将指示仪表刻度按对数刻划；自记型仪表可采用光电管电压的特性，电容充、放电的对数特性，半导体二极管对数特性等电学性质将输出进行对数转换。
