Abstract. We propose a logic optical projection tomography (LOPT) method to realize full-view, three-dimensional (3-D) shape parameters measurement and visualization for opaque objects. The main innovation of LOPT is use of a logic process to obtain high-contrast and homogeneous boundary projection signals. According to the reconstructed 2-D cross-section images, the structure characteristic points in each slice are independently extracted and combined to produce a full-view 3-D image. Further, the structural shape parameters of individual parts of object such as the inscribed cylinder, center line, and double threads are obtained and visualized simultaneously. Our experimental results demonstrate that LOPT can be potentially developed as an economical optical measurement and visualization tool for some industrial application.

中文翻译：

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使用逻辑光学投影断层扫描进行全视角三维形状参数测量和可视化

摘要。我们提出了一种逻辑光学投影断层扫描 (LOPT) 方法来实现对不透明物体的全视角、三维 (3-D) 形状参数测量和可视化。LOPT 的主要创新是使用逻辑过程来获得高对比度和均匀的边界投影信号。根据重建的二维断面图像，独立提取并组合每个切片中的结构特征点，生成全视角3D图像。此外，还可以同时获取并可视化对象的内接圆柱、中心线和双螺纹等各个部分的结构形状参数。我们的实验结果表明，LOPT 可以潜在地开发为某些工业应用的经济型光学测量和可视化工具。