Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/8593
Title: Linear 3-D transformations of Landsat 5 TM satellite images for the enhancement of archaeological signatures during the phenological cycle of crops
Authors: Agapiou, Athos 
Alexakis, Dimitrios 
Sarris, Apostolos 
Hadjimitsis, Diofantos G. 
Keywords: Linear 3-D transformation;Landsat 5 TM satellite images;Crop marks
Category: Environmental Engineering
Field: Engineering and Technology
Issue Date: 2015
Publisher: Taylor & Francis, Ltd
Source: International Journal of Remote Sensing, 2015, Volume 36, Issue 1, pages 20-35
Abstract: A linear 3-D transformation that can be used for the enhancement of crop marks related to buried archaeological features is developed and presented in this article. The methodology is based on three steps: (1) recalculation of the ground narrowband spectroradiometric measurements to the multispectral Landsat 5 Thematic Mapper (TM) sensor, based on the relative response filter of the sensor, (2) application of principal component analysis (PCA) transformation in order to determine the initial axes used for the orthogonal transformation, followed by (3) a 3-D rotation of the PCA axes. The linear coefficients of the transformation were retrieved and adjusted to different phenological stages of the crops. The transformation was successfully evaluated using both in situ measurements and Landsat 5 TM images in two different archaeological case studies. The proposed transformation tends to enhance archaeological signatures better than other established vegetation indices or algorithms, while the methodology can be expanded to any other multispectral satellite images using only the visible and very near-infrared part of the spectrum.
URI: http://ktisis.cut.ac.cy/handle/10488/8593
ISSN: 0143-1161
1366-5901 (online)
DOI: 10.1080/01431161.2014.990646
Rights: © Informa UK Limited, an Informa Group Company
Type: Article
Appears in Collections:Άρθρα/Articles

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