How does scanner choice and 3D model resolution affect data accuracy?
How does scanner choice and 3D model resolution affect data accuracy?
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DOI：
10.1111/joa.13343
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发表时间：
2020-11-03
影响因子：
2.4
通讯作者：
Massey, Jason S.
中科院分区：
文献类型：
--
作者：
Balolia, Katharine L.;Massey, Jason S.
使用数字方法的研究人员经常从使用不同扫描技术获得的不同分辨率的3D模型中收集数据。虽然以前的研究试图了解扫描方法和模型分辨率是否会影响数据的准确性，没有研究系统地评估与扫描方法，数据采集方法和模型分辨率相关的误差来源，目的是提供有关模型分辨率的实际建议，以产生足够准确的数据，给定尺寸的标本。在这项研究中，使用从三大尺寸类别的灵长类动物标本中获取的数据，我们测试是否使用五种不同的扫描仪（Breuckmann SmartSCAN，大卫/HP 3D Pro S3，NextEngine 2020 i，Creaform Go！扫描20和microCT/clinicalCT）产生精确的测量。我们评估卡尺测量是否可以与从3D表面模型收集的测量一起使用，扫描分辨率是否影响测量精度，以及使用每个扫描仪的专有软件估计的扫描分辨率如何与标准化方式测量的模型分辨率进行比较。每台扫描仪都能生成3D模型，为每个尺寸类别提供准确的测量结果，然而，将卡尺数据与数字模型中的数据相结合可能会有问题。我们的研究结果表明，从3D模型的测量精度取决于对象的大小和模型的分辨率。根据我们的研究结果，我们建议对小样本进行扫描，
Researchers using digital methods often collect data from 3D models at different resolutions, obtained using different scanning techniques. Although previous research has sought to understand whether scanning method and model resolution affect data accuracy, no study has systematically evaluated the sources of error associated with scanning method, data acquisition method and model resolution with the aim of providing practical recommendations about the model resolution required to yield sufficiently accurate data for specimens of given sizes. In this study, using data taken from primate specimens of three broad size categories, we test whether 3D models obtained using five different scanners (Breuckmann SmartSCAN, DAVID/HP 3D Pro S3, NextEngine 2020i, Creaform Go!Scan 20 and microCT/clinicalCT) yield accurate measurements. We assess whether caliper measurements can be used alongside measurements collected from 3D surface models, whether scanning resolution affects measurement accuracy, and how scan resolution, estimated using each scanner's proprietary software, compares to model resolution measured in a standardized way. Each scanner produces 3D models that yield accurate measurements for each size category, however, combining caliper data with those taken from digital models can be problematic. Our results indicate that the accuracy of measurements taken from 3D models depends on both object size and model resolution. Based on our findings, we recommend that small specimens should be scanned at