三维视觉测量技术中的双目纹理映射技术

3D Texture Mapping Technique Based on Binocular System in Vision Metrology

设计了基于双目摄像机的三维纹理映射系统,单色和彩色摄像机分别负责三维坐标和颜色信息的采集;建立了双目摄像机的像素匹配模型,并设计了简单的标定方法,确定模型中的内部和结构参数,建立高精度的像素对应关系,配合实现三维数据的纹理映射。还对双目纹理映射方法的测量过程进行了详细描述。经过实验验证,该方法不仅简单易用,还具有高于0.1个像素的匹配精度。

A binocular vision system was designed, which aims at the 3D texture mapping. In this system, one gray camera captures the 3D coordinates, and one color camera acquires color information. The pixel matching model of binocular cameras was established, in which the intrinsic and structural parameters were defined using one simple calibration method. Then the 3D texture mapping model was created with the definition of the higher pixel matching model. The process of the proposed 3D texture mapping method was introduced in detail. The verified experiments proved that this method not only is simple and easy to handle, but also has the matching precision with higher than 0. 1 pixel.