Description: 小波变换在语音和生物医学信号处理中的应用 431
17.1 小波变换在语音信号处理中的应用 431
17.1.1 小波变换在语音增强中的应用 431
17.1.2 小波变换在语音压缩中的应用 433
17.2 小波变换在生物医学信号处理中的应用 435
17.2.1 基于小波变换的ECG信号压缩 435
17.2.2 基于小波变换的EEG信号多分辨率分析 437-wavelet transform voice, and biomedical signal processing of 431 in 17.1 wavelet transform voice signal Treatment of 431 17.1.1 wavelet transform in the speech enhancement of 431 17.1.2 wavelet change for the speech compression of 433 17.2 wavelet transform in biomedical signal processing applications 435 17. 2.1 Based on wavelet transform 435 ECG signal compression based on wavelet transform 17.2.2 EEG signal more hours Analysis of 437 identified Platform: |
Size: 4096 |
Author:崔鹏 |
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Description: matlab下实现心脏电信号压缩的工具箱，内含一个测试ECG信号,一个说明文档pdf格式。-Matlab under cardiac signal compression tool kit, containing a test ECG signal, a documentation pdf format. Platform: |
Size: 590848 |
Author:donghai |
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Description: 利用小波变换对语音信号进行压缩，小波函数db5,分解级数5-Using Wavelet Transform of the voice signal compression, wavelet function db5, decomposition series 5 Platform: |
Size: 1024 |
Author:吴强 |
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Description: dctcom.m文件利用DCT变换完成对输入图像进行压缩；imagecbe.m完成对输入的两幅RGB图像用小波分析的方法进行图像融合 imagecom.m完成对输入的RGB图像用小波分析的方法进行自动降噪，得到高频系数阈值，降噪效果百分比和结果 wavelet1D.m完成对输入的一维信号进行多尺度离散小波分解 wavelet2D完成对输入的二维信号进行多尺度离散小波分解；zigzag.m完成对输入的8*8矩阵按照zigzag排列抽取数据.-document the use of DCT transform dctcom.m completion of the input image compression imagecbe.m completion of the two RGB input image with wavelet analysis method of image fusion imagecom.m completion of the input RGB image using wavelet analysis method automatically drop noise, the threshold of high-frequency coefficient, noise reduction effect and the results of the percentage of wavelet1D.m completion of the input signals of one-dimensional discrete wavelet multi-scale decomposition wavelet2D completion of the input signals of two-dimensional discrete wavelet multi-scale decomposition zigzag.m completed the input of 8* 8 matrix of data collected in accordance with the zigzag order. Platform: |
Size: 3072 |
Author:zhouhao |
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Description: MIT-DB标准数据库中心电信号的读取程序可用于心电信号压缩与编码-MIT-DB standard ECG database, the reading program can be used for ECG signal compression and coding Platform: |
Size: 695296 |
Author:liuyongwang |
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Description: Calculate the Mean Square Error (MSE) and the Peak Signal to Noise Ratio (PSNR) for different JPEG compression ratios. Platform: |
Size: 180224 |
Author:Ahmed |
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Description: 心电信号的压缩与恢复（计算机在生物医学工程中的应用大作业）-ECG signal compression and recovery (the computer in biomedical engineering major operations) Platform: |
Size: 1024 |
Author:mawenhua |
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Description: 小波变换是一种信号的时间—尺度分析方法，它具有多分辨率分析的
特点，而且在时频两域都具有表征信号局部特征的能力。由于其在信号处
理领域表现出的优异性能，目前在生物医学领域，广泛应用于信号检测、
特征提取、图像处理、信号压缩等方面。
-Wavelet transform is a signal of the time- scale analysis method, it has the characteristics of multi-resolution analysis, but also in time and frequency domain have the ability to characterize local signal characteristics. Signal processing because of its excellent performance shown by the current in the biomedical field, is widely used in signal detection, feature extraction, image processing, signal compression and so on. Platform: |
Size: 1928192 |
Author:Lily |
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Description: MATLAB编写的利用u律函数实现的抑制OFDM峰均比的程序，程序通过运行，通过u率函数对信号压扩后，PAR明显降低-U law written by MATLAB functions for OFDM PAPR suppression program, the program by running through the u signal compression and expansion rate after the function, PAR was significantly lower Platform: |
Size: 1024 |
Author:思念 |
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Description: 线形调频信号特性仿真，包括其频率特性，脉冲压缩特性等-Simulation of linear FM signal characteristics, including their frequency, pulse compression characteristics Platform: |
Size: 2048 |
Author:lucent |
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Description: 给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to the JPEG compression matlab program, contains the original compressed image, the program of the grayscale bmp picture JEPG encoded, compressed into a 0101 form of encoding. RBG color coded JPEG image into a first luminance Y and chrominance Cr, Cb, which uses the human visual characteristics is not sensitive to the color, reduce the number of color data to achieve compression. Take a variety of JPEG encoding, includes length coding (Run Length Coding) and Huffman (Huffman) coding, a high compression ratio. In the code before the data block, discrete cosine transform (DCT) and quantization, to retain a large low-frequency signal energy, discarding high-frequency signals in order to achieve compression. Platform: |
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Author: |
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Description: The new edition of this classic book gives all the major concepts, techniques and applications of sparse representation, reflecting the key role the subject plays in today s signal processing. The book clearly presents the standard representations with Fourier, wavelet and time-frequency transforms, and the construction of orthogonal bases with fast algorithms. The central concept of sparsity is explained and applied to signal compression, noise reduction, and inverse problems, while coverage is given to sparse representations in redundant dictionaries, super-resolution and compressive sensing applications. Platform: |
Size: 14893056 |
Author:Keigo |
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Description: 心电信号压缩，利用小波理论，基于小波变换的心电信号的压缩。-Ecg signal compression, using the theory of wavelet, the compression of ecg signals based on wavelet transform. Platform: |
Size: 360448 |
Author:小伟 |
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