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Combining the Technology of Long-Range Laser 3D Scanners and Structured Light Handheld 3D Scanners to Digitize Large-sized Objects

Lipowiecki Ignacy, Rządkowski Witold, Zapał Wojciech, Kowalik Michał

Advances in Science and Technology. Research Journal

2023

Vol. 17, no 3

196--205

This paper presents a new method of merging the results obtained with long-range laser 3D scanners and structured light handheld 3D scanners to digitalize large-sized objects. An overview of the solutions in which these types of scanners are used was conducted and combined with the analysis of the studies related to the measurement accu- racy they offer. The focus was on the problems that may arise during the digitization of detailed large-sized objects. A reference test object was then selected, which not only included the fine details that needed to be represented but also met the size criterion. The object was scanned by two 3D scanners and the data was then compared in various aspects, such as resolution, accuracy, and the measurement procedure. Significant discrepancies in the results were identified. They related to the resolution and quality of results as well as accuracy, reaching more than 20 mm. Therefore, a method of combining the results was developed to collate the advantages of both devices and elimi- nate their disadvantages. In the end, the analysis of obtained results was repeated and the results were presented.