A LOCAL EXTREMA BASED METHOD ON 2D BRIGHTNESS TEMPERATURE MAPS FOR DETECTION OF ARCHAEOLOGICAL ARTIFACTS

Date

2016-07-15

Author

SOYDAN, HİLAL
DÜZGÜN, HAFİZE ŞEBNEM
Alatan, Abdullah Aydın

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Archaeological studies using computer vision based analysis methods on thermal imageries mainly lack an important stage of pointwise detection of artifact positions, which is needed for the automation of the system in a generic application. In this paper, we propose a pointwise detection method working in the thermal range of hyperspectral band for archaeological artifacts. The proposed method first optimally converts a given 3D hyperspectral image of the searched scene into a 2D brightness-temperature map by minimizing the mean square error (MSE) between the spectral radiance of a pixel and the Planck curves generated at different temperatures. The local maxima and minima are then found on the resulting 2D map as the candidate points. Finally, a score assignment is performed on the candidate points by using their temperature difference with respect to their neighborhood. The results on the thermal images taken from a test scene have indicated a good correlation between the extrema points and artifact positions.

Subject Keywords

Local extrema, Temperature map, archaeological remote sensing, Thermal imaging

URI

https://hdl.handle.net/11511/37574

DOI

https://doi.org/10.1109/igarss.2016.7729014

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

H. SOYDAN, H. Ş. DÜZGÜN, and A. A. Alatan, “A LOCAL EXTREMA BASED METHOD ON 2D BRIGHTNESS TEMPERATURE MAPS FOR DETECTION OF ARCHAEOLOGICAL ARTIFACTS,” 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37574.