摘要
投影仪是光学三维测量系统中重要的设备,对投影仪进行标定是光学三维测量算法中的关键步骤。介绍了一种投影仪的标定方法,该方法基于传统的摄像机标定模型,借助摄像机及二维棋盘格标定板,并结合透视投影矫正方法获取投影仪标定特征点坐标,实现对投影仪的标定。该方法相对于现有的标定方法操作简便,标定成本低,有效降低了投影仪标定的复杂度。实验表明,标定精度能满足测量的要求。
The projector is an important device of optical three-dimensional measurement system,and projector calibration is a key step of optical 3D measurement algorithms. This paper presents a method based on the traditional model of camera calibration to calibrate the projector,the method relies on a camera and a two-dimensional checkerboard calibration plate, and combined with the perspective transformation correction method to get the 3D feature point coordinates. Compared with the traditional method,the method is simple and low cost, effectively reducing the complexity of the projector calibration. The experiments show that the calibration result is meeting the measurement requirements.
出处
《信息技术》
2016年第3期36-40,共5页
Information Technology
基金
中央高校科技创新项目(2682014CX083)
关键词
光学三维测量
投影仪标定
透视投影矫正
optical three-dimensional measurement
projector calibration
perspective transformation correction
