摘要
提出了一种新的基于彩色伪随机编码投影的三维重构方法。考虑到投影仪投影射线的不变性，将其视为逆向摄像机，利用射线交汇定位思想，将经过物体表面同一编码特征点的投影射线与成像射线视为一对异面直线，通过求取异面直线公垂线中点坐标来重构编码特征点的空间坐标，实现场景中物体三维信息的获取。文中详细叙述了该重构方法并进行了实验，验证了其有效性。
A novel method of 3D reconstruction based on multicolor pseudo -random encoded projection is proposed. Considering the invariance of projective rays, the projector is viewed as a reverse camera. Using the ideas of intersecting location, the projective ray and the imaging ray, passing the same encoded feature point on the surface of the object, are regarded as a pair of non-coplanar lines. By solving the spatial coordinate of the midpoint located on the common perpendicular which belongs to these two non-coplanar lines, the encoded feature point can be reconstructed and the 3D information of the object is also available. This method is described in detail and the simulation test has been done to verify its efficiency.
出处
《计量学报》
CSCD
北大核心
2010年第3期200-203,共4页
Acta Metrologica Sinica
基金
上海市科委项目（08DZ2272400）
关键词
计量学
三维重构
逆向摄像机
异面直线
Metrology
3 D reconstruction
Reverse camera
Non-coplanar lines
