对图像进行二维离散小波变换, 变换级数大于等于3级,然后统计系数中0的个数（百分比表示），并进行重构, 最后计算重构图像的峰值信噪比(PSNR). 里面还附上了我写的实验报告，对大家理解Mallat算法和图像压缩很有帮助-Image two-dimensional discrete wavelet transform, transform series greater than or equal to 3, and then statistics of the number of c

Choice of Wavelets for Image Compression In wavelet-based image coding the choice of wavelets is crucial and determines the coding performance. Current techniques use computationally intensive search procedures to find the optimal basis (type,

背景差分方法实现规定路面的车流量统计。-Background subtraction method, the provisions of road traffic statistics.

本文首先介绍了已有的调制识别方法：判决理论识别方法和统计模式识别方法[9]，然后详细介绍了基于小波变换调制识别过程，最后分析了数字信号调制识别技术的发展前景。-This paper first introduced the existing modulation identification method: Decision theory identification method and statistics pattern recognition method, Then detailed