查询词典 laplace transform

The methods of image processing and edge detection by wavelet transform were introduced in chemistry, and potentiometric titration end-points were determined by wavelet transform.

将小波变换在信号和图象处理中边缘检测的思想方法引入到化学中，用来确定电位滴定的终点，在计算中取得了非常满意的结果。

This was the instance of wavelet transform to noise image for the first time, and the second, third and fourth transform were resemblant.

这是对含噪图像ano做第1次小波变换的情况，其第2次、第3次及第4次变换的情况与此类似。

Completely different crystal structures and morphology were shown in the meltdrawn films of two kinds of tacticity of sPP. A continuous conformational transform from the 〓 into the of sPP was induced by further stretching. While the zigzag conformation can retransform back to helical 〓 one after annealing above 80℃, the mechanism of conformation transform has been introduced.

Petermann教授学科专业高分子化学与物理研究领域\研究方向学位级别博士学位授予单位中国科学院长春应用化学研究所学位授予日期2001 论文页码总数114页关键词聚丙烯聚丁烯共聚物聚α-烯烃馆藏号BSLW /2003 /O632 /3 用电子显微学、电子衍射、DSC和FTIR等技术对聚α-烯烃及其共聚物的晶体结构和相转变行为进行了系统地研究，包括间同立构聚丙烯、全同立构和间同立构聚丁烯-1（iPB-1，sPB-1）、以及丙烯-丁烯-1间同立构共聚物。

After analyzing Tian and Alattar algorithm, a novel lossless information hiding method based on integer linear transform was proposed. The near character of pixels could be analyzed. After the less distorted revisable vector was transformed by integer linear transform, hidden information was embedded by pair-check modulation.

在分析Tian和Alattar隐藏算法的基础上，提出了一种基于改进整数线性变换的无损隐秘传输方法，通过分析可修改矢量区域象素的邻近相关性，选取出对图像质量影响较小的可修改矢量，进行整数线性变换后再嵌入信息。

Then the applications of ridgelet transform and curvelet transform in image processing are discussed.

然后，分析了Ridgelet 变换和Curvelet 变换在图像处理中的应用。

Ridgelet transform is introduced in the fifth chapter. It includes principle, implement method and application of this transform.

第五章单独对Ridgelet变换进行了介绍，包括该变换的原理、实现方法和应用。

This paper first introduces two basic algorithms of spare signal expansion, ridgelet transform and curvelet transform, and gives their implementation.

本文首先在系统研究稀疏信号表示理论的基础上，实现了其中的Ridgelet和Curvelet 两种基本变换算法。

Experiment results show that Ridgelet transform is more efective than the wavelet transform in seismic signal denoising.

数值实验结果表明，Ridgelet变换在地震信号去噪方面优于小波变换。

Numerical results show that ridgelet transform is more effective than the wavelet transform in approximating and denoising images with straight edges.

实验结果说明，脊波在对具有直线边缘的图像逼近和去噪时的确比小波有效。

An Integer Wavelet Transform with parameters is firstly constructed and the transmutative Rijndael code is used to construct a Hash function, and then a visible digital watermark algorithm based on the Integer Wavelet Translation with parameters, Discrete Cosine Transform and the Transmutative Rijndael encryption algorithm are presented.

构造出了带参数的整数小波，应用变型的Rijndael密码构造出了Hash函数。提出了一种基于带参数整数小波变换、离散余弦变换及变型Rijndael加密算法的可见数字水印算法。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。