彩色编码结构光测量水中物体的三维面形  

Three-dimensional measurement of object in water using the color-encoded pattern fringe

作　　者：王庆丰[1] 张启灿[1] 刘元坤[1] 

机构地区：[1]四川大学电子信息学院,成都610065

出　　处：《四川大学学报（自然科学版）》2009年第4期973-978,共6页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金(60807006)

摘　　要：提出一种利用彩色编码结构光和光线追迹算法测量水中物体三维面形的方法.该方法利用投影仪投出经过彩色编码的颜色条纹来调制物体的三维信息,摄像机拍摄回物体表面的变形条纹图,然后根据光线追迹算法分别追踪摄像机和投影仪的光线来计算物体的三维面形信息,即可恢复出物体的三维面形.用这种方法计算物体的三维面形只需要拍摄一幅图像,因此该方法大大提高了测量速度并降低了系统成本.利用文中方法在3DS MAX软件中进行了模拟实验,并进行了实际测量,实验结果证明了所述方法的正确性和可行性.In this paper, a new method with the color-encoded patterned fringe and ray tracing algorithm is proposed for measuring the three-dimensional shapes of objects in water. It uses color-encoded digital fringe projected by a projector to record the information of objects~ three-dimensional shapes which is calculated with the ray tracing method after capturing the deformed image. Using this method only a single image is required to obtain the three-dimensional shapes of objects, so the speed of reconstruction can be greatly increased and the cost of instruments will descend. A simulative experiment was done using the software 3DS MAX and an actual measurement for a model in the water was also done, the results prove this method correctly and feasibility.

关 键 词：三维面形测量 面结构光 彩色编码 光线追迹 

分 类 号：TM930.126[电气工程—电力电子与电力传动]