吉林大学学报(理学版)

• 计算机科学 • 上一篇    下一篇

基于摄像机标定的实时倒车轨迹算法

耿庆田1,2, 赵宏伟1, 樊雪1, 赵德芳1, 赵扬1   

  1. 1. 吉林大学 计算机科学与技术学院, 长春 130012; 2. 长春师范学院 计算机科学与技术学院, 长春 130032
  • 收稿日期:2012-11-28 出版日期:2013-07-26 发布日期:2013-08-06
  • 通讯作者: 赵宏伟 E-mail:zhaohw@jlu.edu.cn

Real-Time Algorithm of Reversed Car TrajectoryBased on Camera Calibration

GENG Qing |tian1,2, ZHAO Hong wei1, FAN Xue1, ZHAO De fang1, ZHAO Yang1   

  1. 1. College of Computer Science and Technology, Jilin University, Changchun 130012, China;2. School of Computer Science and Technology, Changchun Normal University, Changchun 130032, China
  • Received:2012-11-28 Online:2013-07-26 Published:2013-08-06
  • Contact: ZHAO Hong wei E-mail:zhaohw@jlu.edu.cn

摘要:

通过建立车辆倒车运动学模型, 利用摄像机标定理论, 推导出实时倒车轨迹方程算法. 该算法通过读取倒车运动车辆方向盘的旋转角度值, 可将在世界坐标系下推导的倒车轨迹算法经过摄像机坐标系、 成像坐标系和图像坐标系的坐标变换得到倒车预测轨迹. 该轨迹再经过径向畸变模型矫正后以影像的方式显示. 实验测试结果表明, 该算法生成的预测倒车轨迹精度较高.

关键词: 计算机应用, 可视倒车, 倒车轨迹算法

Abstract:

Kinematic model of vehicle reversing was built, and the algorithms of real\|time reverse trajectory equation were derived according to camera calibration theory. With the help of  acquired rotational angle of vehicle steering wheels when vehicles are reversing, vehicles reversing trajectory in world coordinate is transformed to the trajectory in image coordinate, and then the image of the trajectory, which is transformed via the radial distortion model, is displayed. Drivers will reverse by means of observing reversing trajectory in the screen, which is very helpful to beginners especially. Experimental results show that the reversing trajectory, which is calculated by the algorithms in this paper, has high accuracy and certain practical value.

Key words: computer application, visual reversing, algorithm of reversed car trajectory

中图分类号: 

  • TP391