基于图像灰度信息的三维曲面测量方法应用  

Application of 3D surface measurement based on gray images

作　　者：乌秀春[1] 郭东明[2] 康仁科[2] 

机构地区：[1]辽宁工学院汽车与交通工程学院,辽宁锦州121001 [2]大连理工大学机械工程学院,辽宁大连116024

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第4期496-499,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(59975016)

摘　　要：提出一种由图像灰度信息恢复三维形状的自由曲面测量方法,以自然方式提取物体表面的形状信息,实现了系统间的信息集成。介绍了一种适合于自由曲面测量的改进光照模型及其参数的确定方法,给出了基于改进光照模型的由单幅灰度图像和单目多幅灰度图像的曲面重构算法,并用数字相机拍摄的实际图像对算法进行验证,结果表明该测量方法有效可行。A measurement on 3D shape from gray images for free-form surface is presented. The method has application prospects because it can obtain surface shape by natural way and easily realize the information integration among different systems. Firstly, an improved illumination model for free-form surface measurement and parameters determining method are introduced, and the surface reconstruction algorithm based on improved illumination model on shape from single gray image and monocular multi gray images is proposed. The accuracy of the algorithm is verified with real image taken with digital camera. The result shows that the measurement is effectivet, feasible and significant in application.

关 键 词：自由曲面 非接触测量 光照模型 由明暗恢复形状 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]