基于格雷码结构光的编解码研究  

Study of Coding and Decoding Based on Gray-code Structure light

作　　者：张超[1] 杨华民[1] 韩成[1] 于翠红[1] 

机构地区：[1]长春理工大学计算机科学技术学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2009年第4期635-638,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家科技支撑计划项目(2009BAE69B00)

摘　　要：在三维重建过程中,要准确地求取扫描点的空间坐标信息必须准确地得到计算空间坐标信息需要的参数。为了获取计算参数,文中使用格雷码编码结构光的方法。格雷码是一种出错率小的编解码方法,使用这种编解码方法可以更加准确地对条纹进行解码。为了更好地对格雷码条纹进行解码,本文提出一系列图像预处理方法使得条纹边界曲线的提取更加有效。在图像预处理过程中,分别对图像进行放大、灰度、二值化、边界提取。通过实验数据验证,采用本文提出的图像预处理方法对条纹进行解码的精度更高、出错率更低。In the process of three-dimension reconstruction,it is necessary to exactly calculate the space coordinate infor-mation of one scanning point by its accurately parameters of space coordinate information.The method of gray-encoding structured light was adopted,in order to compute parameters.Gray code is a low error probability codec method,use this codec method can be more accurately decode stripes.In order to more accurately decode stripes,a series of image pre-pro-cessing methods allow the extraction of boundary curve stripes more effective in this paper. In the process of image pre-pro-cessing, respectively to processing images by enlarge, gray, binarization, edge extraction. The encoding-decoding examination of gray-encode structured light were carried out. The examination data shows that a series of image processing methods can effectively reduce error probability during the decoding

关 键 词：格雷码 结构光 边界提取 三维重建 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]