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Description: A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database. -A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database.
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Size: 421888 |
Author: ruan |
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Description: Another way to do a stft but with fft from matlab
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Size: 1024 |
Author: Flopgon |
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Description: A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database
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Size: 276480 |
Author: joyce |
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Description:
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Size: 1165312 |
Author: korolis |
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Description: Based on the spectrum of the vuvuzela sound, this denoising technique simply computes an antenuation map in the time-frequency domain. Then, the audio signal is restored by computing the inverse STFT. See [1] or [2] for more detail about the algorithm.
To hear the result of this algorithm, go directly to: http://soundcloud.com/choc29/vuvuzela-correction-with-matlab
References:
[1] Steven F. Boll, "Suppression of Acoustic Noise in Speech Using Spectral Subtraction", IEEE Transactions on Signal Processing, 27(2),pp 113-120, 1979
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Size: 1156096 |
Author: naarkhoo |
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Description: 基于MATLAB的短时傅里叶变换（STFT）的语谱图的画法，MATLAB环境下-MATLAB-based short-time Fourier transform (STFT) of the spectrogram of the painting, MATLAB environment
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Size: 241664 |
Author: 阿若 |
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Description: 利用MATLAB作为平台，实现希尔伯特变换的程序源代码-Hilbert transform source code
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Size: 1024 |
Author: 紫风 |
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Description: 短时傅里叶变换的一些简单的演示，其中有矩形窗和高斯窗-some demos for the short time fourier transform
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Size: 1024 |
Author: 姚旭 |
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Description: 这是一个关于信号视频分析的代码，用matlab编写，带有短时傅里叶变换，小波变换分析信号。-This is a video analysis on the signal code, written with matlab, with short time Fourier transform, wavelet transform signal.
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Size: 1024 |
Author: fan |
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Description: 维格纳-威尔分布三维图面图，跳频信号的stft，跳频信号的维格纳-威尔分布的频谱图-Wigner- Will the distribution of three-dimensional surface maps, frequency hopping signal stft, frequency hopping signal Wigner- Will the distribution of spectrum
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Size: 586752 |
Author: 追风人 |
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Description: matlab编程时不采用工具箱内的内部函数specgram，按照计算过程直接编写仿真程序-matlab stft
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Size: 1024 |
Author: gs |
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Description: 短时傅里叶变换的matlab仿真程序，不同窗函数、不同窗长下的时频域谱- Matlab simulation program of the Short time Fourier transform, the time and frequency domain spectrum of function of the different windows, different window length
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Size: 1024 |
Author: 海霞 |
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Description: 这个是我个人编写的短时傅里叶变换的函数matlab.适用于语音压缩与语音分析.在其中可以加入一些自己的代码，即可改成phase vocoder-this is the STFT function which is wrote by myself(matlab). It is suit for speech compression and analyse. if you add some code in it, it can turn to a phase vocoder straightforward.
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Size: 2048 |
Author: 高靖博 |
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Description: 短时傅立叶变换的matlab程序实现及绘图显示-Short Fu Liye transform of the matlab program implementation and graphics display
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Size: 1675264 |
Author: 是啊 |
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Description: 非常完整的关于时频分析的所有程序，包括小波变换，短时傅里叶变换，gabor变换-the matlab tools include many programs about time frequency,such as gabor transform,STFT,wavelet transform,and so on
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Size: 2085888 |
Author: lifang |
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Description: 使用四分量高斯包络信号进行时频分析，比较比较STFT、WVD、CWD分辨率和交叉干扰情况，包含仿真代码及Matlab时频分析工具箱。工具箱的使用建议参考《Matlab时频分析技术及其应用-葛哲学》，压缩包中顺便包含了该书的源代码。-The four-component Gaussian envelope signal frequency analysis, comparison compare STFT on WVD, CWD resolution and cross-interference, frequency analysis toolbox contains the simulation code and Matlab. Use the recommended reference toolbox " Matlab frequency analysis technology and its application- Gezhe school" book contains the source code compression package the way.
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Size: 2310144 |
Author: 吉韦 |
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Description: matlab，短时傅里叶变换代码，源码！-Short time Fourier transform code
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Size: 1024 |
Author: 东升 |
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Description: 关于快速傅里叶变换的一些注意事项和matlab源程序-Some matters and matlab source program about the fast Fu Liye transform
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Size: 463872 |
Author: |
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Description: 利用matlab 进行段数傅里叶变换，进行频谱分析，对于从事相关工作的人很有帮助。-The number of segments by using Fourier transform of MATLAB, frequency spectrum analysis, is helpful to be engaged in relevant work.
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Size: 1024 |
Author: 任建文 |
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Description: 短时傅里叶变换的Matlab程序代码，短时傅里叶变换时最经典的时频分析方法-Matlab code short time Fourier transform, short-time Fourier transform of the most classic time-frequency analysis
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Size: 1024 |
Author: 王丽 |
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