基于bp神经网络的数字识别系统

基于小波变换的三维模型提取技术的毕业论文,包括代码和答辩ppt.1．实现了三维模型的表示和规范化预处理过程，在此基础上，开发了进行检索实验的可视化特征提取实验平台。 2．结合球面调和变换获取旋转不变量具有降低特征向量维数的特性，实现了基于光线投射的特征提取方法，通过检索评价实验确定了参数的最佳取值。 3．分析了基本的光线投射方法和改进的光线投射方法的缺陷，提出了一种基于三维小波变换的特征描述方法。对光线投射算法进行了扩展，将切比雪夫采样点序列进行离散小波变换，然后利用球面调和变换获得旋转不变的特征向量。 4．将小波变换引入到体素表示的三维模型中，分别实现了表面体素小波变换和实体体素小波变换的特征提取，通过实验比较分析实体体素小波变换优于表面体素小波变换。 -Wavelet-Based Extraction of three-dimensional model of thesis, including the reply code and ppt.1. Three-dimensional model of the implementation and standardization of the express pre-treatment process, on this basis, developed a visual search experiment of feature extraction experiment platform. 2. Combination of spherical harmonic transform to obtain rotation invariant feature vector with reduced dimension of the characteristics of ray-casting based on the implementation of feature extraction methods, the evaluation by searching the parameters of the experiment to determine the best value. 3. Analysis of the basic ray casting method and the ra

将各种图形、图片文件保存读取到access数据库中。-Will be a variety of graphics, pictures, save the file to read to the access database.

VB与AutoCAD二次开发入门技巧资料-VB and AutoCAD second development of data entry skills

香港晶门科技ssd1309控制器初始化代码，用于oled显示屏驱动

在灰度范围[100,200]内显示图像，以灰度等级20显示图像-In gray-scale range of [100,200] display image to 20 gray levels display images

X264(H264)最新版本 包含SVN目录入口,方便更新 注意:下载后请将后缀改名为.tar.bz2 包含win32 makefile 但最好在linux下使用(win32下需修改文档编码为DOS编码)-X264 (H264) the latest version of SVN directory that contains the entrance to facilitate the update Note: Please download suffix renamed. Tar.bz2 contains win32 makefile in linux but it would be best to use (win32 need to modify a document under the code for DOS encoding)

曲线拟合c++代码，在学数值分析(计算方法)的同学可以参考一下-curve fitting c code, the numerical analysis study (calculated), the students can take a look

用C语言实现的Cohen-Sutherland算法，对学习计算机图形学有很大的帮助-C language to the Cohen-Sutherland algorithm. to learn computer graphics is a great help! !

一些画直线的算法，包括反走样直线-linear algorithms, including linear Antialiasing

对任意多边形进行切割，求其相交部分,相交部分用红色线段标出。-draw two polygon and then they can cut each other.The color of intersected parts are red.