卷帘式快门CMOS数字相机测速算法

J4 ›› 2013, Vol. 31 ›› Issue (1): 61-65.

卷帘式快门CMOS数字相机测速算法

刘丹, 刘智

长春理工大学电子信息工程学院, 长春 130022

收稿日期:2009-05-17 出版日期:2003-01-24 发布日期:2013-04-01
作者简介:刘丹（1986—）, 女, 长春人, 长春理工大学博士研究生, 主要从事电子科学与技术、激光通信技术研究, (Tel)86-13604329676(E-mail)liudancust@126.com|刘智（1971—）, 男, 河北定州人, 长春理工大学教授, 博士, 硕士生导师, 主要从事固态成像及激光偏振调制与解调技术研究,(Tel)86-18946557983(E-mail)liuzhi@cust.edu.cn。

Speed Measurement Algorithm Based on CMOS Digital Camera with Rolling Shutter

LIU Dan, LIU Zhi

School of Electronic Information Engineering, Changchun University of Science and Technology, Changchun 130022, China

Received:2009-05-17 Online:2003-01-24 Published:2013-04-01

摘要/Abstract

摘要：

为精简相机测速成图像的处理过程, 在研究卷帘式快门相机的工作原理及特点的基础上, 建立了三维空间目标与相机成像目标间的透视投影模型, 并对空间运动目标和平面运动目标的测速算法进行了详细的理论推导和实验测试。结果表明, 采用卷帘式快门CMOS数字相机的测速方法可准确测量平面运动目标的位姿和速度, 测试结果可靠, 测速精度误差在允许范围内（3%）, 在未来的交通监管领域有广阔的发展空间和应用前景。

关键词: 相机测速, 卷帘式快门, 透视投影模型, 测速算法

Abstract:

In order to streamline the camera speed in image processing, we introduce the work principle of rolling shutter camera. The perspective projection model of three dimensional space goals and camera imaging target is established. And a detailed theoretical derivation of the velocity measurement algorithms for moving target in space and plane is given. Finally, this velocity measurement method was experimental. The results show that the velocity measuring method using the rolling shutter CMOS digital camera can measure the moving target position and velocity parameters in plane. The test result is reliable, and accuracy error of measuring velocity is within the allowable range(3%). This method will have wide development and application prospect in the future traffic regulation fields.

Key words: CMOS camera, rolling shutter, perspective projection model, speed measurement algorithm

中图分类号:

TP394.1

刘丹, 刘智. 卷帘式快门CMOS数字相机测速算法[J]. J4, 2013, 31(1): 61-65.

LIU Dan, LIU Zhi. Speed Measurement Algorithm Based on CMOS Digital Camera with Rolling Shutter[J]. J4, 2013, 31(1): 61-65.