Wavelet transform, D4 scaling function and wavelet function Rendering

某一直升机齿轮箱上的早期损伤的特征是，在伴随振动信号上产生一个可变周期的非平稳扰动信号。要求按此特征构造一组有物理意义的数据仿真早期故障信号，应用小波变换技术分析故障的特征和发生时刻。-a helicopter gearbox early on the characteristics of the injury, In addition to the vibration signal produced a variable cycle perturbation of non-stationary signals. Click here to request a group of tectonic significance of a physical early fault simulation data signals Application of wavelet transform technical analysis of the features and fault occurred moments.

连续小波变换源程序-CWT source

新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined* Ding Guang Guo Baolong Xi"an University of Electronic Science and Electrical and Mechanical Engineering College, Xi"an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords

小波变换算法源代码 -source code for wavelet transform algorithm

基于小波变换的方法采用sym20小波对信号进行谐波分析。-Based on Wavelet Transform Methods sym20 harmonic wavelet analysis of signals.

The optimal wavelet function in wavelet based image compression system was examined using different -The optimal wavelet function in wavelet based image compression system was examined using different

dwt小波变换，用于对图像的处理与压缩-dwt wavelet transform, for the image processing and compression

可以用CDF53小波对灰度图像实现正反变换-CDF53 wavelet can be used to achieve positive and negative gray image transformation

matlab中都是对灰度图像进行小波变换，本程序是对彩色图像进行小波变换-matlab in gray-scale images are wavelet transform, this process is a wavelet transform for color image

一种基于模糊规则和小波变换的医学图像锐化增强算法-Based on fuzzy rules and wavelet transform for medical image sharpness enhancement algorithm