基于三角基线性拟合算法的后视镜外形优化  

Shape Optimization of Rearview Mirror Based on Trigonometric Baseline Fitting Algorithm

作　　者：董佳康 段金英[1] 李楠 苏鹏 DONG Jia-Kang;DUAN Jin-Ying;LI Nan;SU Peng(Xijing University, Xi＇an 710123, China)

机构地区：[1]西京学院,西安710123

出　　处：《计算机系统应用》2018年第5期181-185,共5页Computer Systems & Applications

基　　金：2017年西京学院"大学生创新创业训练计划"项目(127152017039)

摘　　要：针对现有后视镜的缺陷,采用双曲镜设计,将视镜分为主视野区和副视野区(主视野区接近平面镜,副视野区是凸面镜),在满足两个区域镜面平滑过渡的前提下建立曲面拟合模型,通过三角基线性拟合算法对复杂的曲面进行拟合,实现后视镜的曲面外形优化.该优化主要体现在可视区域变大,盲区减小,图像失真率小,在分界示意线过渡期间图像连贯且车身周围的图像失真率在3%以下.Aiming at the defects of the existing mirror, by using the hyperbolic mirror design, the mirror is divided into the main view area and side view area（the main view area closes to the plane mirror, and the side view area is convex）. In order to meet the demand of smooth transition for two regional mirror, a surface fitting model is set up to fit the complex surface by triangle based linear fitting the algorithm, thus the mirror surface shape optimization is realized. The optimization is mainly manifested in perspectives of those the visible area becomes larger, the blind area decreases, and the image distortion rate is small. During the transition of the transition line, the image is coherent and the image distortion rate around the body is below 3%.

关 键 词：曲率半径 三角基线性拟合 失真率 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]