3D measurement technology based on color trapezoidal phase-shifting coding light
The essay introduced a color trapezoidal phase-shifting coding method to get the projecting angle of three-dimensional measurement system. In this method firstly use a color trapezoidal phase-shifting pattern, ensure that the intensity-ratio of sampling points changes periodically in the range of 0, 6, and then map the location of the intensity ratio in the space of intensity ratio linearly to the space of projecting angle. After continuous division of the projection angle, determine the projecting angle of the sampling points, and finally realize three-dimensional measurement based on the principle of triangulation. This article gives an explicit introduction of the coding and decoding principles of color trapezoidal phase-shifting as well as the testing experiment. The result of the experiment shows that the measurement error is less than 0.6898mm; the measurement Standard deviation is less than 0.4099mm.
3D measurement intensity ratio projecting angle color trapezoidal phase-shifting
XI Zhaohui SHAN Lina YU Shuang WU Haibin
College of Measurement Control Tech & Communication Engineering, Harbin University of Science and Technology, Harbin, 150080, CHINA
国际会议
哈尔滨
英文
1094-1097
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）