The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLI-B2
https://doi.org/10.5194/isprs-archives-XLI-B2-383-2016
https://doi.org/10.5194/isprs-archives-XLI-B2-383-2016
08 Jun 2016
 | 08 Jun 2016

PRECISE VISUALIZATION METHOD FOR CULTURAL HERITAGE-THE CASE OF HIGH-RESOLUTION READ RELIEF IMAGE MAP USED FOR STUDY OF ROYAL CITY OF ANGKOR THOM, CAMBODIA

T. Chiba, I. Shimoda, T. Haraguchi, and M. Shimoda

Keywords: Airborne Laser Scanning, Visualization, Urbanism, Water Management, Red Relief Image Map

Abstract. To precisely visualize the Royal City of Angkor Thom, Cambodia, we used a new method in field of cultural heritage study. Read Relief Image Map (RRIM, Chiba et al., 2008) is a powerful method which has been used for geomorphological studies. In this study, using the LiDAR data conducted at the Angkor Archaeological Park in Cambodia in April 2012 (Evans et al., 2013), we visualized the Royal City of Angkor Thom and its vicinity (Shimoda et al., 2016). The RRIM provided a new visualization method of localizing, minute topographical changes in regions with large undulations over a wide area. It has proved to be effective in mapping, on a single wide-area map, the numerous buried remains that exist as comparable height differences or minute undulations measuring less than 1 meter in height, and provides a unique aerial view of their widespread distribution. Based on the RRIM map, past archaeological studies were referenced to reconstruct the layout of the water channel network system. Past studies revealed that a large number of ponds had been dug inside Angkor Thom. The RRIM expanded the investigation and revealed the existence of many ponds outside the royal capital indicating that a residential community had flourished outside the moat surrounded capital city.