A COMPARISON OF STRUCTURED LIGHT SCANNING AND PHOTOGRAMMETRY FOR THE DIGITISATION OF PHYSICAL PROTOTYPES
A COMPARISON OF STRUCTURED LIGHT SCANNING AND PHOTOGRAMMETRY FOR THE DIGITISATION OF PHYSICAL PROTOTYPES
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DOI：
10.1017/pds.2021.2
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发表时间：
2021-07
期刊：
影响因子：
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通讯作者：
Owen Freeman Gebler;M. Goudswaard;B. Hicks;D. Jones;Aydin Nassehi;C. Snider;J. Yon
中科院分区：
文献类型：
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作者：
Owen Freeman Gebler;M. Goudswaard;B. Hicks;D. Jones;Aydin Nassehi;C. Snider;J. Yon
在早期设计阶段的物理原型通常代表一个迭代过程。通常，在整个过程中将使用单个原型，其形式随着设计的发展而修改。如果在每次迭代发生时原型的形式没有被捕获，那么理解特定的设计更改如何影响需求的满足是具有挑战性的，特别是回顾性的。在本文中，两个不同的系统，数字化的物理文物，结构光扫描（SLS）和摄影测量（PG），作为手段捕获迭代的物理原型。首先，提出了一系列的测试文物和操作每个系统的程序开发。接下来，使用SLS和PG对人工制品进行数字化，并将所得模型与每个人工制品的主模型进行比较。结果表明，这两种系统都能够重建大部分的每个人工制品的几何形状在0.1毫米的主，但是，整体SLS表现出上级的性能，无论是在完成时间和模型质量。此外，与SLS相比，PG模型的质量更受用户的努力和专业知识的影响。
Abstract Physical prototyping during early stage design typically represents an iterative process. Commonly, a single prototype will be used throughout the process, with its form being modified as the design evolves. If the form of the prototype is not captured as each iteration occurs understanding how specific design changes impact upon the satisfaction of requirements is challenging, particularly retrospectively. In this paper two different systems for digitising physical artefacts, structured light scanning (SLS) and photogrammetry (PG), are investigated as means for capturing iterations of physical prototypes. First, a series of test artefacts are presented and procedures for operating each system are developed. Next, artefacts are digitised using both SLS and PG and resulting models are compared against a master model of each artefact. Results indicate that both systems are able to reconstruct the majority of each artefact's geometry within 0.1mm of the master, however, overall SLS demonstrated superior performance, both in terms of completion time and model quality. Additionally, the quality of PG models was far more influenced by the effort and expertise of the user compared to SLS.