Terrestrial Laser Scanning in Building Documentation

Aikaterini Karagianni

doi:10.13189/cea.2017.050603

Abstract

During the last decades, documentation of buildings has proven to be a valuable tool for a variety of civil engineering issues, such as urban planning, preservation and restoration of cultural heritage buildings, as well as monitoring during the construction phase. Several techniques have been developed for this purpose including topographic, photogrammetric and ground-based remote sensing techniques or a combination of them. The increasing interest in the generation of 3D facade models for documentation of built environment has made laser scanning a valuable tool for 3D data collection. Regarding civil engineering, terrestrial laser scanning could be considered an efficient method for digitizing buildings facades, generating dense 3D point clouds available for further processing. This paper presents the study of a mansion house of cultural significance built in the middle of the 18th century, using terrestrial laser scanning techniques for facade documentation. Scanning process included multiple external scans of the main facade of the building which were registered using artificial targets and appropriate software to form a single colored 3D model. Further process resulted in a model that offers measurement possibilities valuable to future plans and designs for preservation and restoration. High resolution satellite data were also used to gain detailed information about the physiognomy of building's surrounding area.

Highlights

Technological developments in the field of information acquisition have led to the progress of various techniques
Terrestrial Laser Scanning (TLS) techniques may be effective in several civil engineering issues such as studies of structures and deformation studies, natural hazard studies and cultural heritage [1,2,3,4]
During the last decades, documentation of buildings has proven to be a valuable tool for a variety of civil engineering issues including: protection and preservation, restoration and conservation, monitoring and management, identification and interpretation of buildings, sites and cultural landscapes [5]

Summary

Introduction

Technological developments in the field of information acquisition have led to the progress of various techniques. Terrestrial Laser Scanning (TLS) techniques may be effective in several civil engineering issues such as studies of structures (buildings, bridges, dams, tunnels) and deformation studies, natural hazard studies (landslides, earthquakes) and cultural heritage [1,2,3,4]. During the last decades, documentation of buildings has proven to be a valuable tool for a variety of civil engineering issues including: protection and preservation, restoration and conservation, monitoring and management, identification and interpretation of buildings, sites and cultural landscapes [5]. Remote sensing techniques may contribute in monitoring and interpretation of the site. Other conventional techniques such as topographic surveys and measurements, photogrammetric methodologies or even their combination, are used in structural monitoring [8]

Methods

Results

Conclusion