计算机技术与发展
計算機技術與髮展
계산궤기술여발전
COMPUTER TECHNOLOGY AND DEVELOPMENT
2014年
10期
34-37
,共4页
交通工程%碰撞检测%包围体%OBB包围盒%一维碰撞%二维碰撞
交通工程%踫撞檢測%包圍體%OBB包圍盒%一維踫撞%二維踫撞
교통공정%팽당검측%포위체%OBB포위합%일유팽당%이유팽당
traffic engineering%collision detection%bounding volume%oriented bounding box%one-dimensional collision%two-dimensional collision
给出了一种用虚拟环境下的OBB碰撞检测算法对真实环境下城市道路交通事故进行检测的方法。该方法的主要思想是利用OBB算法计算车辆的包围盒,通过对包围盒的地面平面投影得到车辆矩形二维包围盒,然后检测这些矩形在同一平面上是否相交从而判断车辆是否发生碰撞,最后根据车辆的碰撞方式确认事故的类型,从而完成事故检测。为了提高算法效率,还给出了OBB包围盒数量的控制方法。实验结果表明,该方法能够快速地检测到交通事故的发生。
給齣瞭一種用虛擬環境下的OBB踫撞檢測算法對真實環境下城市道路交通事故進行檢測的方法。該方法的主要思想是利用OBB算法計算車輛的包圍盒,通過對包圍盒的地麵平麵投影得到車輛矩形二維包圍盒,然後檢測這些矩形在同一平麵上是否相交從而判斷車輛是否髮生踫撞,最後根據車輛的踫撞方式確認事故的類型,從而完成事故檢測。為瞭提高算法效率,還給齣瞭OBB包圍盒數量的控製方法。實驗結果錶明,該方法能夠快速地檢測到交通事故的髮生。
급출료일충용허의배경하적OBB팽당검측산법대진실배경하성시도로교통사고진행검측적방법。해방법적주요사상시이용OBB산법계산차량적포위합,통과대포위합적지면평면투영득도차량구형이유포위합,연후검측저사구형재동일평면상시부상교종이판단차량시부발생팽당,최후근거차량적팽당방식학인사고적류형,종이완성사고검측。위료제고산법효솔,환급출료OBB포위합수량적공제방법。실험결과표명,해방법능구쾌속지검측도교통사고적발생。
Propose a method of testing the urban road traffic accidents in real environment using the OBB collision detection algorithm in virtual environment. The main idea is to calculate the bounding box of vehicles with OBB algorithm,and to obtain the two-dimensional rectangular bounding box of vehicles with planar projection of the bounding box,then to judge whether the vehicles collide each other by detecting whether the rectangular on the same plane,and according the collision mode,the type of accident is recognized,finishing the ac-cident detection. In order to improve algorithm efficiency,the method of control is also provided for OBB amount. Experimental result in-dicates that the proposed method can rapidly detect accidents.