oqtpht-analysis

shixian 图形图像编码，图像压缩以及分析(shixian graphics image coding, image compression and analysis)

对交通标志进行检测和识别（本文件仅针对红色交通标志进行识别）(Identification and identification of traffic signs (this document is only for identification of red traffic signs).)

说明：  三种emd去噪方法：1、直接使用小波阈值，进行硬阈值去噪；2、使用具有emd分解特性的阈值去噪；3、emd分解后的平移不变去噪。(Three kinds of EMD denoising methods: 1. Direct use of wavelet threshold for hard threshold denoising; 2. Use of threshold denoising with EMD decomposition characteristics; 3. Translation invariant denoising after EMD decomposition.)

说明：  包括影像预处理，叶绿素反演，水污染监测等功能(Including image preprocessing, water pollution monitoring and other functions)

说明：  能够检测图片的特征点，利用DOG算子，实际测试方便，算法清晰，有相关参考文章链接(Be able to detect image feature points)

matlab程序，产生涡旋光束，光强以及相位图，在科研上很有用，简单快速。(The matlab program produces vortex beams, light intensities, and phase diagrams, which are useful, simple, and fast in scientific research.)

bmp图像边缘检测，vc界面，很好用，适合初学者学习(bmp image edge detection, vc interface, useful for beginners to learn)

说明：  基于GMM的快速点云的聚类分析的高斯混合模型，可用于模糊聚类(GMM Based Fast point cloud clustering analysis of Gaussian mixture model, which can be used for fuzzy clustering)

包括回归分析和概率统计，结合PCA的尺度不变特征变换(SIFT)算法，计算晶粒的生长，入门级别程序。( Including regression analysis and probability and statistics, Combined with PCA scale invariant feature transform (SIFT) algorithm, Calculation of growth, entry-level program grain.)

利用opencv高斯混合背景建模，并进行开闭运算滤波， 提取视频监控中的车辆(Using opencv Gaussian mixture background modeling and opening and closing operation filtering to extract vehicles in video surveillance)