作业一

用小波变换多分辨对脑电慢波P300信号的特征提取(wavelet EEG P300 feature execute)

说明：  1、正弦函数 f (t) = K sin(wt +a) 2、矩形脉冲函数 f (t) = u(t) - u(t - t0 ) 3、抽样函数 4、单边指数函数 f (t) = Ke -t 5、已知信号 f1(t) = u(t + 2) - u(t - 2)， f 2 (t) = cos(2pt) ，用 MATLAB 绘制 f1(t) + f 2 (t) 和 f1(t)′ f 2 (t)的波形。(such as : Sine function f (t) = K sin(wt +a) Rectangular pulse function f (t) = u(t)-u(t-t0) Sampling function One-sided exponential function f (t) = Ke -t Known signal f1(t) = u(t + 2)-u(t-2), f 2 (t) = cos(2pt), draw with MATLAB The waveforms of f1(t) + f 2 (t) and f1(t)*f 2 (t))

模拟圆管焊接时的移动热源，热源模型为双椭球热源，运动轨迹为环形(Simulated moving heat source pipe welding heat source model for the double ellipsoid heat source, an annular trajectory)

LVQ(学习矢量量化)算法：它是Kohonen的有监督学习的扩展形式,融合了自组织和有导师监督的技术,学习方法是竞争的,但(LVQ (Learning Vector quantization) algorithm: it is an extended form of supervised learning of Kohonen, which combines self-organizing and supervised techniques. The learning method is competitive, but the)

python语言，三种阈值分割方式，简单阈值分割，自适应阈值分割，OTsu分割方式(Python language, three methods of image segmentation , simple threshold segmentation, adaptive threshold segmentation, OTsu segmentation)

图片排序效果。根据你拖动的位置来进行排序(The picture sort of effect. Depending on where you drag to sort)

说明：  能够按照特定轨迹移动并且变换颜色的长方体(Able to move the color of the rectangular transform)

说明：  一维自适应阈值分割大津法的源程序是用matlab写的(One-dimensional Otsu adaptive threshold segmentation method source code is written in matlab)

说明：  基于mean-shift运动目标跟踪matlab源代码(Based on mean-shift object tracking matlab source code)

自己实现的BM3D图像去噪算法。它首先把图像分成一定大小的块，根据图像块之间的相似性，把具有相似结构的二维图像块组合在一起形成三维数组，然后用联合滤波的方法对这些三维数组进行处理，最后，通过逆变换，把处理后的结果返回到原图像中，从而得到去噪后的图像。(Image Denosing by Sparse 3-D Transform-Domain Collaborative Filtering.)