一种基于自然特征的AR算法  

An AR Algorithm Based on Natural Features

作　　者：秦雪洲 邢冠宇 QIN Xue-zhou;XIN Guan-yu(College of Computer Science,Sichuan University,Chengdu 610065;National Key Laboratory of Fundamental Science on Synthetic Vision,Sichuan University,Chengdu 610065)

机构地区：[1]四川大学计算机学院,成都610065 [2]四川大学视觉合成图形图像技术国防重点学科实验室,成都610065

出　　处：《现代计算机》2020年第5期52-56,74,共6页Modern Computer

摘　　要：增强现实(AR)技术,是一种通过在现实世界中叠加虚拟物体,强化和突出重要信息的技术。该实验提出一种使用自然特征匹配,来估计相机运动,并检测平面作为参照物,最终渲染虚拟物体的AR实现方式。与放置标记的实现方式相比,不需要在现实场景中放置人工标记物,同时也没有使用惯性传感器。因此该AR系统能适用于更广泛的场景,并且能够实现稳定的特征匹配,正确的相机运动估计和良好的AR视觉效果。Augmented Reality(AR)technology is a technology that enhances and highlights important information by overlaying virtual objects in the real world.This paper proposes an AR implementation that uses natural feature matching to estimate camera movement,detects the plane as a reference,and finally renders a virtual object.Compared with the implementation of placing markers,there is no need to place artificial markers in scenes,and no inertial sensor is used.Therefore,the AR system in this paper can be applied to a wider range of scenes,and can achieve stable feature matching,correct camera motion estimation,and good AR visual results.

关 键 词：增强现实 图像特征检测 相机运动估计 平面检测 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]