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fuzzycmeans
Magnetic resonance (MR) images can be used to detect lesions in the brains of multiple sclerosis (MS)
patients and is essential for diagnosing the disease and monitoring its progression. An automatic method is
presented for segmentation of MS lesions in multispectral MR images. Firstly a PD-w image is subtracted its
corresponding T1-w image to get an image in which the cerebral spinal fluid (CSF) is enhanced. Then based on
kernel fuzzy c-means (KFCM) algorithm, the enhanced image and the corresponding T2-w image are segmented
respectively to extract the CSF region and the CSF combining MS lesions region. A raw MS lesions image is
obtained by subtracting the CSF region CSF combining MS region. By applying median filter and
thresholding to the raw image, the MS lesions are detected finally. Results are quantitatively uated on
BrainWeb images using Dice similarity coefficient (DSC). Finally, the potential of the method as well as its
limitations are discussed.
- 2014-12-28 01:45:09下载
- 积分：1
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QAM
QAM simulation using a carrier cosine wave with ISI
- 2009-03-17 19:10:56下载
- 积分：1
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chengxu
给音乐添加噪声再通过低通滤波器滤掉噪声，性能改善过后能明显看到效果。(Add noise to the music and through a low pass filter filters noise, performance improvement can be evident after the effects.)
- 2010-05-14 21:41:28下载
- 积分：1
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RD-0
雷达成像RDA正侧视 matlab 我看的是合成孔径雷达成像算法与实现(digital processing of synthetic aperture radar)
- 2012-04-04 23:56:18下载
- 积分：1
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simulation_communications
MC-CDMA系统的简要介绍和系统的MATLAB 仿真性能实现(the generalized analysis of MC-CDMA system and realization using MATLAB code.)
- 2014-12-18 11:12:00下载
- 积分：1
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Asymmetric transmission
可以通过CST得到透射系数计算超材料的不对称传输系数(The transmission coefficient can be obtained by CST to calculate the asymmetric transmission coefficient of metamaterials.)
- 2021-03-30 17:59:09下载
- 积分：1
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simulator2
用Matlab实现一个矩阵的循环码编码的仿真。(Implement a matrix with Matlab coding loop simulation.)
- 2010-12-29 18:00:04下载
- 积分：1
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FourMethodsOfPeriodogramEstimate
非参数的功率谱估计包括四个，周期图法，Blackman-Turkey,Welch-Bartell,改进的周期图法，输入信号为白噪声通过切比雪夫滤波后的信号(Non-parametric estimation of the power spectrum consists of four, periodogram, Blackman-Turkey, Welch-Bartell, improved cycle diagram method, the input signal is white noise ratio of the signal by cutting Schiff filtered)
- 2013-12-10 19:41:14下载
- 积分：1
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gui_v12
小波包分析提取振动信号中的特征频率，含噪脉冲信号进行相关检测,包括调制，解调，信噪比计算。( Wavelet packet analysis to extract vibration signal characteristic frequency, Noisy pulse correlation detection signal, Includes the modulation, demodulation, signal to noise ratio calculation.)
- 2017-03-10 17:04:48下载
- 积分：1
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FDEfrequencyequalizer
根据LTE上行SIMO接收机特点，对MMSERISIC均衡器进行简化修改，得到MMSEFDE均衡器,该均衡器所有步骤全在频域进行，大大降低了均衡算法的复杂度。(LTE uplink SIMO receiver according to the characteristics of the MMSE-RISIC equalizer to simplify modification, by MMSE-FDE equalizer, the equalizer all the steps in full in the frequency domain, greatly reduces the complexity of balancing algorithm.)
- 2010-08-11 22:50:44下载
- 积分：1
