Abstract:
Historical buildings and structures are import ant fora country and the world since they are the only living evidence of
the engineering technology of man kind. Therefore, itis of utmost importance to protect and preserve them to safe guard the identity
of the particular civilizations,retain the ircultural significance, and ensure the inaccessibility to present and future generations.
Since many historic structures are in a partially dilapidated state,
to prevent further deterioration,itis essential to record their present status in structural engineering and building material
aspects. This is typically a costly,time-demanding, unsafe, and challenging task. As a solution,3 Dgeomatics technologies, and
UAVsystemsarenowbeingusedintheworldtodocument existing structures,especially in difficult-to-accessare as.This
is also usually a high-cost task.In this research, an effective technique for generating structural information of anexisting
building or as imilarstructure to preserve the detail so for duplicating as a truereplicais developed.The developed solution
is are mote-controllable custom-made drone system with a GoPro Hero7camera.Different type so fstructures were selected, and after running several test cases,the most suitable image-
taking technique and the processing plat form were identified. The
effecting factors to the accuracy such as the number of images
taken,and overl appercentage of images were identified and
their optimum contri bution detected.As a result,the proposed
solution abled to yield a dimensional accuracy of 98.9%.This
study concludes that the developed effective solution is avalid
alternative to high-cost3Dmappingtechniques.
Citation:
Mahinda, M.C.P., Udhyani, H.P.A.J., Alahakoon, P.M.K., Kumara, W.G.C.W., Hinas, M.N.A., & Thamboo, J.A. (2021). Development of an effective 3D mapping technique for heritage structures. In A.M.H.S. Abeykoon & L. Velmanickam (Eds.), Proceedings of 3rd International Conference on Electrical Engineering 2021 (pp. 98-105). Institute of Electrical and Electronics Engineers, Inc. https://ieeexplore.ieee.org/xpl/conhome/9580924/proceeding