Simultaneous multiple view high resolution surface geometry acquisition using structured light and mirrors
Simultaneous multiple view high resolution surface geometry acquisition using structured light and mirrors
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DOI：
10.1364/oe.21.007222
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发表时间：
2013-03-25
期刊：
影响因子：
3.8
通讯作者：
Styles, Iain B.
中科院分区：
文献类型：
--
作者：
Basevi, Hector R. A.;Guggenheim, James A.;Styles, Iain B.
成像对象的表面几何形状的知识在许多应用中是重要的。这些信息可以通过许多不同的技术获得，包括飞行时间成像、摄影测量和条纹投影轮廓术。现有系统可能对仪器几何形状有限制，需要昂贵的光学器件，或者需要移动部件以便对对象的整个表面成像。提出了一种廉价的广义条纹投影轮廓测量系统，该系统可以考虑任意放置的组件，并使用反射镜来扩大视场。它同时获取成像对象的多个视图，产生位于其表面上的点云，然后可以对其进行处理以形成三维模型。该系统的原型被集成到现有的扩散光学断层扫描和生物发光断层扫描小动物成像系统中，并用于成像对象，包括老鼠形状的塑料幻影，老鼠尸体和硬币。将由鼠形塑料体模的表面捕获数据生成的表面网格与体模制造商提供的理想表面点进行比较，发现50%的点位于表面网格的0.1 mm内，82%的点位于表面网格的0.2 mm内，96%的点位于表面网格的0.4 mm内。(C)2013年美国光学学会
Knowledge of the surface geometry of an imaging subject is important in many applications. This information can be obtained via a number of different techniques, including time of flight imaging, photogrammetry, and fringe projection profilometry. Existing systems may have restrictions on instrument geometry, require expensive optics, or require moving parts in order to image the full surface of the subject. An inexpensive generalised fringe projection profilometry system is proposed that can account for arbitrarily placed components and use mirrors to expand the field of view. It simultaneously acquires multiple views of an imaging subject, producing a cloud of points that lie on its surface, which can then be processed to form a three dimensional model. A prototype of this system was integrated into an existing Diffuse Optical Tomography and Bioluminescence Tomography small animal imaging system and used to image objects including a mouse-shaped plastic phantom, a mouse cadaver, and a coin. A surface mesh generated from surface capture data of the mouse-shaped plastic phantom was compared with ideal surface points provided by the phantom manufacturer, and 50% of points were found to lie within 0.1mm of the surface mesh, 82% of points were found to lie within 0.2mm of the surface mesh, and 96% of points were found to lie within 0.4mm of the surface mesh. (C) 2013 Optical Society of America