Study of Using Sum to Improve Digital Archives Integrity of Traditional Architectures with 3D Laser Scanning Technology
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 4
Abstract
3D laser scanning technology has been widely applied to digital archive and management of historical buildings, and that is enormous contributions for human civilization inherited. But the technology is limited by complex structure of scanned object or shaded of spatial pattern, and some important and pivotal 3D digital mode will be lost, and resulting in subsequent applied problems. In this study, try to obtain miss 3D point cloud by 3D laser scanning using SfM, and reintegrate to the original 3D point cloud model for insufficiency of 3D laser scanning technology. Get the relationships of photo distance, number of photos and deviation of 3D point cloud mode through the targets are uniformly scattered in a square wall with the area of 1.80m×1.20m. The research results show that the objects can obtain the 3D point cloud mode through the combination of the use of SfM technology at 7m in distance with more than 6 images, and when the 3D point cloud mode obtained through Ground Lidar with scan distance between 5m to 7m, the error is 0.005m~0.006m, which has been confirmed in the actual case. That is to say, the concordance of Lidar and SfM will be beneficial to the integrity and application of the 3D point cloud model of the historical architectures
Authors and Affiliations
Tsung Chiang Wu, Yu Wei Chang
Keywords
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