matlab_ch5

Sparse Signal Representation using Overlapping Frames (matlab toolbox)(Sparse Signal Representation using Overl apping Frames (Matlab toolbox))

说明：  用matlab语言实现的将图像的进行dpcm编码算法，之后进行图像重构，进行前后图像的对比。(With matlab language will be dpcm image coding algorithm, after the image reconstruction, the images before and after contrast. )

matlab实现图像分割剪裁放大缩小等操作(Image segmentation matlab operations such as cutting Zoom)

This paper describes two digital implementations of a new mathematical transform, namely, the second generation curvelet transform [12, 10] in two and three dimensions. The first digital transformation is based on unequally-spaced fast Fourier transforms (USFFT) while the second is based on the wrapping of specially selected Fourier samples. The two implementations essentially differ by the choice of spatial grid used to translate curvelets at each scale and angle. Both digitaltransformations return a table of digital curvelet coefficients indexed by a scale parameter, anorientation parameter, and a spatial location parameter. And both implementations are fast in the sense that they run in O(n2 log n) flops for n by n Cartesian arrays in addition, they are also invertible, with rapid inversion algorithms of about the same complexity.

关于车辆声音信号的滤波、能量以及频谱分析(Voice signals on the vehicle filtering, spectral analysis of energy and)

人脸检测程序基于bp网络模式形态学处理等算法完成人脸检测(face detection)

本文档包括，BA_net.m、WS_net.m和randomgraph.m是可以直接运行的文件，分别生成三种不同网络的网络模型和特性曲线等，以及一个说明文档。(This document includes: BA_net.m, WS_net.m and randomgraph.m file can be run directly, namely generation network model and characteristics of three different networks and so on. )

The fusion of high-spectral/low-spatial resolution multispectral and low-spectral/high-spatial resolution panchromatic satellite images is a very useful technique in various applications of remote sensing. Recently, some studies showed that a wavelet-based image fusion method provides high quality spectral content in fused images. However, most wavelet-based methods yield fused results with spatial resolution that is less than that obtained via the Brovey, IHS, and PCA fusion methods. In this paper, we introduce a new method based on a curvelet transform, which represents edges better than wavelets. Since edges play a fundamental role in image representation, one effective means to enhance spatial resolution is to enhance the edges. The curvelet-based image fusion method provides richer information in the spatial and spectral domains simultaneously. We performed Landsat ETM+ image fusion and found that the proposed method provides optimum fusion results.

8用户2小区瑞利信道仿真模型，输出snrber曲线(8 Rayleigh Road user 2 cell simulation model, the output snrber curve)

matlab入门手册 一本很不错的基础教程 可下载学习 pdf格式(Getting Started manual matlab a very good basis for learning tutorial download pdf format)