基于代价函数的脊提取动态优化算法研究  

Dynamic Optimization Algorithm of Extract Ridge Based on Cost Functions

作　　者：刘春媛[1] 佟佳颖[1] 李丹[1] 陶金[1] 张春红[1] 

机构地区：[1]黑龙江科技大学计算机与信息工程学院,哈尔滨150027

出　　处：《煤矿机械》2013年第6期260-262,共3页Coal Mine Machinery

基　　金：黑龙江省教育厅科学技术研究项目(12513078;12511474)

摘　　要：为解决在动态三维测量中由于获得的原始图像噪声较大而影响测量结果的问题,提出了基于价值函数的动态优化算法,该方法通过对原始图像中每一行像素做小波变换,在模矩阵中提取局部极大值点,作为脊的备选集合,利用价值函数求从当前一列极值点到下一列所有极值点的最小生存价值点,作为小波变换真正的脊。通过数值模拟表明该方法具有较好的抗噪性。The measurement result was affect by original image noise in dynamic 3D measurement,the dynamic optimization algorithm based on cost functions is presented in this paper.In this method,the local maxima of wavelet transform modulus matrix were chosen as the ridge point sets.We get the minimum survival value point from the extreme points of current column to all the extreme points of next column.The extreme value points were considered as the true ridges of wavelet transform.The computer simulation shows that this algorithm

关 键 词：动态三维测量 小波变换 脊 价值函数 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]