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Fusion of geophysical images in the study of archaeological sites

Fusion of geophysical images in the study of archaeological sites
Fusion of geophysical images in the study of archaeological sites
In the last few years, the idea of combining images, called image fusion, appeared and it has become a critical area of research and development. Image fusion can be defined as the process of combining images, taken from the same scene and create one single image containing all the essential information of the original images. A single sensor is not always sufficient. Different sensors, effective in different environmental conditions, provide different information of a scene. The underlying idea in this article is to combine geophysical images taken with different sensors, from the same location, aiming to improve the detectability of possible archaeological targets. Three different fusion approaches were used; fusion by calculating the average of the individual images, and through the use of wavelet and curvelet transforms. Furthermore, taking advantage of the curvelet domain we exploit possible prior angle information to enhance the angles where the remnants are expected. We applied the methods in seven different pairs of geophysical images taken from two different archaeological areas. In all cases the fused images produced significantly better results than each of the original geophysical images separately.
archaeology, curvelets, geophysics, image fusion, wavelets
1075-2196
119-133
Karamitrou, Alexandra
25acd266-3030-4958-b5c5-72d4c6b74caf
Bogiatzis, Petros
8fc5767f-51a2-4d3f-aab9-1ee9cfa9272d
Tsokas, Gregory N.
5a5bd98b-3bda-476e-95c5-1de677664a49
Karamitrou, Alexandra
25acd266-3030-4958-b5c5-72d4c6b74caf
Bogiatzis, Petros
8fc5767f-51a2-4d3f-aab9-1ee9cfa9272d
Tsokas, Gregory N.
5a5bd98b-3bda-476e-95c5-1de677664a49

Karamitrou, Alexandra, Bogiatzis, Petros and Tsokas, Gregory N. (2020) Fusion of geophysical images in the study of archaeological sites. Archaeological Prospection, 27 (2), 119-133. (doi:10.1002/arp.1766).

Record type: Article

Abstract

In the last few years, the idea of combining images, called image fusion, appeared and it has become a critical area of research and development. Image fusion can be defined as the process of combining images, taken from the same scene and create one single image containing all the essential information of the original images. A single sensor is not always sufficient. Different sensors, effective in different environmental conditions, provide different information of a scene. The underlying idea in this article is to combine geophysical images taken with different sensors, from the same location, aiming to improve the detectability of possible archaeological targets. Three different fusion approaches were used; fusion by calculating the average of the individual images, and through the use of wavelet and curvelet transforms. Furthermore, taking advantage of the curvelet domain we exploit possible prior angle information to enhance the angles where the remnants are expected. We applied the methods in seven different pairs of geophysical images taken from two different archaeological areas. In all cases the fused images produced significantly better results than each of the original geophysical images separately.

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Manuscript_Alexandra_Karamitrou_accepted - Accepted Manuscript
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More information

Accepted/In Press date: 20 December 2019
e-pub ahead of print date: 28 January 2020
Keywords: archaeology, curvelets, geophysics, image fusion, wavelets

Identifiers

Local EPrints ID: 438016
URI: http://eprints.soton.ac.uk/id/eprint/438016
ISSN: 1075-2196
PURE UUID: 7cf1a6b8-249a-4a8b-8e04-9d3fc9989f31
ORCID for Petros Bogiatzis: ORCID iD orcid.org/0000-0003-1902-7476

Catalogue record

Date deposited: 26 Feb 2020 17:30
Last modified: 26 Nov 2021 06:56

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Contributors

Author: Alexandra Karamitrou
Author: Petros Bogiatzis ORCID iD
Author: Gregory N. Tsokas

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