ABSTRACT

Efficient three-dimension exploration of a complex indoor environment remains a difficult duration in mapping accuracy requirements for geometric data. Indoor and outdoor mapping, which has been done with classical measuring devices for a long time, has come a long way with the use of laser scanning technology in this field. Although terrestrial laser scanning (TLS) point cloud recording provides great convenience in indoor and outdoor mapping, it is disadvantageous in terms of time and cost. Therefore, in our study, we propose a new indoor mapping strategy with wearable mobile laser scanning (WMLS) approach, which uses the simultaneous localization and mapping algorithm, which has been tried recently, as an alternative to TLS point cloud. In this strategy, four test areas with different geometric structures were scanned. A comparative analysis was performed after each test area was scanned with TLS and WMLS devices. For accuracy analysis, reference data were measured with a precision measuring device, and both scan data were compared on a spatial and length basis. The study results showed that the proposed strategy could be an alternative to TLS in terms of accuracy and the time advantage of the WMLS method.

摘要

复杂室内环境的高效三维探索仍然是几何数据映射精度要求的一个困难时期。长期以来，室内和室外测绘一直使用经典的测量设备来完成，随着激光扫描技术在该领域的使用，已经取得了长足的进步。虽然地面激光扫描（TLS）点云记录为室内和室外测绘提供了极大的便利，但在时间和成本方面存在劣势。因此，在我们的研究中，我们提出了一种采用可穿戴移动激光扫描（WMLS）方法的新室内测绘策略，该策略使用最近尝试过的同步定位和测绘算法，作为 TLS 点云的替代方案。在该策略中，扫描了四个具有不同几何结构的测试区域。使用 TLS 和 WMLS 设备扫描每个测试区域后进行比较分析。为了进行精度分析，使用精密测量装置测量参考数据，并在空间和长度基础上比较两个扫描数据。研究结果表明，就 WMLS 方法的准确性和时间优势而言，所提出的策略可以替代 TLS。