摘要
在利用增强现实虚拟沙盘进行多人异地协同指挥或研讨时,本地操作者需要知道异地操作者的具体方向与位置来避免方向错误、位置冲突以更好地与对方交流。针对此问题,设计了适合AR环境的三维标记物,研究并实现了基于视觉的定位定向算法。采用Pn P算法对标记物进行位姿估计,使用面积比值法计算方位角。实验结果表明该算法可以实现快速精确地定位定向,能够满足AR虚拟沙盘实际应用需求。
When using augmented reality(AR) virtual sandbox for multi-person collaborative command or discussion, the local operator needs to know the specific direction and location of the remote operator to avoid wrong direction, position conflict and to better communicate with the other. Aiming at this problem, a three-dimensional marker suitable for AR environment is designed, and a vision-based position and orientation algorithm is researched and implemented. The PnP algorithm is used to estimate the pose of the marker, and the area ratio method is used to calculate the azimuth. The experimental results show that the proposed algorithm can achieve fast and accurate position and orientation, meeting the practical application requirements of AR virtual sandbox.
作者
余田甜
王晓萍
李蔚清
苏智勇
Yu Tiantian;Wang Xiaoping;Li Weiqing;Su Zhiyong(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China;Northern Information Control Research Institute Group Co.,Ltd,Nanjing 211103,China;School of Computer Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《系统仿真学报》
CAS
CSCD
北大核心
2021年第2期324-330,共7页
Journal of System Simulation
基金
“十三五”装备预研基金(61409230104,315100104,31511040202)
中央高校基本科研业务费专项资金(30918012203)
上海航天科技创新基金(SAST2019009)。
关键词
增强现实
定位定向
三维标记物
PnP算法
augmented reality
position and orientation
three-dimensional marker
PnP algorithm
作者简介
第一作者:余田甜(1996-),女,硕士生,研究方向为增强现实、计算机视觉。Email:2531219218@qq.com。
