Application 3D Scanner for Heritage Building Data: Chetawan (Ka Pheuak)

Abstract

This study aims to describe the distinctive characteristics of the study area and to compare the efficiency of heritage site data collection methods. The case study focuses on Wat Chetawan (Ka Phueak) in Phayao Province, an important Lanna heritage site with an estimated age of around 500 years. At present, only the remains of the stupa, brick temple base, and wall structures remain in deteriorated condition. The site reflects the historical, architectural, and cultural values of the local community, making it necessary to record detailed physical data for conservation and further research. The research methodology consists of two approaches: (1) traditional surveying using a Total Station and manual measurements, and (2) three-dimensional laser scanning with the Faro Focus M70 to generate Point Cloud datasets and digital models. The comparative results show that 3D scanning can capture data with a resolution of more than 2,000 points per square meter, access complex areas without physical
contact, and reduce fieldwork time. In contrast, traditional surveying, while cost-effective and familiar
to practitioners, is limited in terms of resolution and access to certain areas. In conclusion, 3D scanning demonstrates greater potential for digital conservation, 3D modeling, rapid fieldwork, and non-invasive data acquisition. Traditional methods, however, still offer advantages in terms of familiarity and lower costs. Integrating both methods enhances accuracy and data potential, enabling applications in engineering, archaeology, and sustainable cultural heritage preservation.