幾種常用的壓縮算法 本程序包含以下功能： 1、 Arithmetic coding 2、 Huffman coding 3、 LZ77 coding 4、 LZ78 coding 5、 LZW 6、 RLE 7、 DCT 8、 Furie transFORm
標(biāo)簽： coding Arithmetic Huffman LZ
上傳時(shí)間： 2014-01-18
上傳用戶：caozhizhi
the attached utility is a work I ve submitted to the university It shows what a jpeg compression is all about. the function implements the DCT transFORm, using a matrix operator. note that matlab has a function for the DCT and iDCT transFORms that might be more efficient.
標(biāo)簽： compression university the submitted
上傳時(shí)間： 2014-01-15
上傳用戶：Altman
Hilber-Huang變換的MATLAB程序 Mat_emd is a Matlab program demonstrating performing the Empirical Mode Decomposition and Hilbert-Huang transFORm on seismic reflection data
標(biāo)簽： demonstrating Hilber-Huang performing Empirical
上傳時(shí)間： 2016-04-03
上傳用戶：zhangyigenius
Image Compression A collection of simple routines for image compression using different techniques. 圖象壓縮的不同方法 BTCODE: Image compression Using Block Truncation Coding. PYRAMID: Image compression based on Gaussian Pyramids. DCTCOMPR: Image compression based on Discrete Cosine transFORm. IMCOMPR: Image compression based on Singular Value Decomposition. The given codes can be also used in 2D noise suppression. Notes: The function "conv2fft" performs a 2D FFT-based convolution. Type "help conv2fft" on Matlab command window for more informations.
標(biāo)簽： Compression compression collection different
上傳時(shí)間： 2016-05-11
上傳用戶：磊子226
用Fourier變換求取信號(hào)的功率譜---周期圖法 用Fourier變換求取信號(hào)的功率譜---分段周期圖法 用Fourier變換求取信號(hào)的功率譜---welch方法 功率譜估計(jì)----多窗口法（multitaper method ,MTM法） 功率譜估計(jì)----最大熵法（maxmum entmpy method,MEM法） 功率譜估計(jì)----多信號(hào)分類(lèi)法（multiple signal classification,music法）Fourier transFORm to strike a signal to the power spectrum - the cycle of plans Fourier transFORm to strike a signal to the power spectrum - Sub-cycle Method Fourier transFORm to strike a signal to the power spectrum --- welch method Power spectrum estimated more than window ---- Law (multitaper method, MTM) ---- Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM) ---- More than the estimated power spectrum signal classification (multiple signal classification, music)
標(biāo)簽： Fourier welch 變換 信號(hào)
上傳時(shí)間： 2016-07-16
上傳用戶：wqxstar
fft.c--This computes an in-place complex-to-complex FFT x and y are the real and imaginary arrays of 2^m points. dir = 1 gives forward transFORm dir = -1 gives reverse transFORm
標(biāo)簽： complex-to-complex and imaginary computes
上傳時(shí)間： 2016-09-17
上傳用戶：ljt101007
This computes an in-place complex-to-complex FFT x and y are the real and imaginary arrays of 2^m points. dir = 1 gives forward transFORm dir = -1 gives reverse transFORm
標(biāo)簽： complex-to-complex and imaginary computes
上傳時(shí)間： 2013-12-18
上傳用戶：huql11633
The tca package is a Matlab program that implements the tree-dependent component analysis (TCA) algorithms that extends the independent component analysis (ICA), where instead of looking for a linear transFORm that makes the data components independent, we are looking for components that can be best fitted in a tree structured graphical model. The TCA model can be applied in any situation where the data can be assumed to have been transFORmed by an unknown linear transFORmation.
標(biāo)簽： tree-dependent implements component analysis
上傳時(shí)間： 2016-09-17
上傳用戶：cazjing
1D FDTD simulation between free space and dielectric medium with absorbing boundary conditions,calculating the fourier transFORm of electric field
標(biāo)簽： simulation dielectric conditions absorbing
上傳時(shí)間： 2016-09-24
上傳用戶：gundamwzc
These three articles involves the combination of wavelet and MCTF. MCTF means motion-compensated-time-filter. It makes wavelet transFORm more popular because of the high compression efficiency.
標(biāo)簽： motion-compensated-tim MCTF combination articles
上傳時(shí)間： 2013-11-25
上傳用戶：cc1015285075
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