Universiti Teknologi Malaysia Institutional Repository

3D modeling for rock art documentation using lightweight multispectral camera

Zainuddin, K. and Majid, Z. and Ariff, M. F. M. and Idris, K. M. and Abbas, M. A. and Darwin, N. (2019) 3D modeling for rock art documentation using lightweight multispectral camera. In: 8th International Workshop on 3D Virtual Reconstruction and Visualization of Complex Architectures, 3D-ARCH 2019, 6-8 Feb 2019, Bergamo, Italy.


Official URL: http://dx.doi.org/10.5194/isprs-archives-XLII-2-W9...


This paper discusses the use of the lightweight multispectral camera to acquire three-dimensional data for rock art documentation application. The camera consists of five discrete bands, used for taking the motifs of the rock art paintings on a big structure of a cave based on the close-range photogrammetry technique. The captured images then processed using commercial structure-from-motion photogrammetry software, which automatically extracts the tie point. The extracted tie points were then used as input to generate a dense point cloud based on the multi-view stereo (MVS) and produced the multispectral 3D model, and orthophotos in a different wavelength. For comparison, the paintings and the wall surface also observed by using terrestrial laser scanner which capable of recording thousands of points in a short period of time with high accuracy. The cloud-to-cloud comparison between multispectral and TLS 3D point cloud show a sub-cm discrepancy, considering the used of the natural features as control target during 3D construction. Nevertheless, the processing also provides photorealistic orthophoto, indicates the advantages of the multispectral camera in generating dense 3D point cloud as TLS, photorealistic 3D model as RGB optic camera, and also with the multiwavelength output.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:geometric recording, multispectral camera, rock art
Subjects:Q Science > QA Mathematics
ID Code:90223
Deposited By: Narimah Nawil
Deposited On:30 Mar 2021 15:48
Last Modified:30 Mar 2021 15:48

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