| 摘要: |
| 利用普通的LCD投影仪和数码相机获得物体的三维形状.投影仪作为光源,投射线结构光在物体表面,从数码相机拍摄的照片序列中,恢复物体的形状.提出了根据已经标定好的相机参数,继续对投影仪进行标定的方法;同时,针对物体表面颜色/纹理较为复杂的情况,提出了一次投射三色线结构光的改进方法,克服了不易恢复此类物体形状的困难.实验结果表明,该方法可以获得物体的稠密点云用于进一步的重建,适于组建一个廉价但却保持相对精度的扫描系统. |
| 关键词: 线结构光 形状恢复 三维重建 相机标定 投影仪标定 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.60373070 (国家自然科学基金) |
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| A Simple Method for Shape Recovery Based on Linear Structured Light |
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ZHENG Zuo-Yong,YAO Li,YAO Ting-Ting,MA Li-Zhuang
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| Abstract: |
| This paper aims at recovering the shape of an object by using a common LCD projector and a digital camera. The projector is employed as a point light source for casting linear stripe onto the surface of an object. From the sequence of photos taken by a digital camera, the shape of an object can be recovered. In this paper, a method for projector calibration is proposed on the basis of camera calibration. In addition, a RGB linear structured light scheme is also proposed for recovering the shape of an object with complex color and texture. The experimental results show that dense point clouds can be obtained for further surface reconstruction. It can be concluded that such a system cheap but keeping relatively high accuracy can be considered as a replacement of expensive scanning systems. |
| Key words: linear structured light shape recovery 3D reconstruction camera calibration projector calibration |
