Comparison of Characteristics of 3D Laser Scanner for Construction of Indoor Geospatial Information

Abstract

Recently, the design and operation of buildings and various ICT technologies have developed and the interior space has become larger and more complex. As a result, a variety of activities such as convention, shopping, and entertainment are carried out without moving outdoors and the cost of living in the indoor space is gradually increasing. In addition, as the services for indoor space are diversified, research on technology for construction of effective indoor geospatial information is needed. In this study, the characteristics of 3D laser scanner which is widely used for spatial information construction was investigated. 3D laser scanner for construction of indoor geospatial information can be divided into static scanner, mobile mapping scanner and handheld scanner. Mobile mapping scanners and handheld scanners provide continuous data acquisition compared to static scanners, and efficient data acquisition is possible. In terms of accuracy, the static scanner showed less than 1mm noise on the wall, and the handheld scanner showed about 40mm noise. The application of 3D laser scanner to indoor geospatial information construction considering the work flow and accuracy of related regulations is suggested. If the scanner is selected for the purpose of the indoor geospatial information that is intended to be deployed, it will be possible to establish the indoor space information effectively, considering the work efficiency or accuracy of the performance.