三角面元灰度图象三维重建算法研究  

Research into the improvement of algorithm of shape from shading with a linear triangular element surface model

作　　者：何晓辉[1] 马银平[1] 陈震[1] 

机构地区：[1]南昌航空大学,江西南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2007年第2期38-41,共4页Journal of Nanchang Hangkong University(Natural Sciences)

摘　　要：三角面元SFS算法是结合三角面元模型和线性反射图来阐述SFS问题的,该算法的基本思想是用三角面元素来近似光滑表面,并用一系列基于节点的线性方程组合来表达该表面。本文在此算法的基础上,求解时通过加权平均迭代,提高了恢复的准确性和迭代的收敛速度。The algorithm of triangular element SFS combines a triangular element surface model with a linearized reflectance map.The main idea is to approximate a smooth surface by the union of triangular surface patches called triangular elements and express the approximating surface as a linear combination of a set of nodal basis functions.In this paper,the proposed improvement of this algorithm enhances the accuracy of SFS and speeds up the convergence of the iteration.

关 键 词：计算机视觉 透视投影 三角元素 

分 类 号：O182.2[理学—数学]