Measurement Angular Velocity Based on Video Technology
Traditional method to measure rotational speed of object is to install some devices on the object, such as rotary encoder etc. However, some objects cannot be installed with any measuring equipment. Sometimes, the owner of the objects does not allow such installment. To measure the angular velocity of the object with video measurement technique is a possible alternative, which is the goal of this study. The angular velocity of the object can be measured firstly by a camera to record rotational video of the objects and then two adjacent frames can be extracted from the video. Hough transform (or Radon transform) is applied to detect the straight line in the images, and calculate the angular of the lines in each image. In this way, the value of difference angle between two frames can be calculated. It is easy to get the angular velocity of the object because the interval time of the two frames is known. The experiment confirmed that this method can get an ideal measurement results.
video camera angular velocity
ZHU Xiao-dong YU Song-nian
School of Computer Engineering and Science Shanghai University Shanghai,China Department of Computer School of Computer Engineering and Science Shanghai University Shanghai,China
国际会议
2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)
上海
英文
1971-1975
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）