Multi-criteria evaluation of topographic correction methods

REMOTE SENSING OF ENVIRONMENT

卷:184

Article

Sola, Ion¹  Gonzalez-Audicana, Maria¹  Alvarez-Mozos, Jesus¹ 

[1] Univ Publ Navarra, Dept Projects & Rural Engn, Campus Arrosadia, Pamplona 31006, Spain

关键词: Topographic correction;    Evaluation;    Comparison;    Multi-criteria;   

DOI  :  10.1016/j.rse.2016.07.002

来源: Elsevier

【 摘 要 】

In the last decades, several topographic correction methods (TOC) have been proposed, but there is not an agreement on the best method. Furthermore, different evaluation criteria have been used in the past, and there is not any simple and objective evaluation procedure to measure the quality of the correction. Consequently, a multi criteria analysis of widely used topographic correction methods is required that evaluates their performance over different sensors, terrain and temporal configurations. In this work, ten TOC methods were assessed using seven different evaluation strategies. The analysis was carried out for three SPOT5 images acquired over a mountainous area of northern Spain. The images had different acquisition dates and solar angles, so as to evaluate performance under varying illumination conditions. The results obtained showed that Statistic-Empirical method, C-Correction and Sun-Canopy-Sensor + C performed the best, and differences were minor when favorable illumination conditions were considered. For the seven tested evaluation strategies, interquartile range reduction of land covers or the comparison of sunlit and shaded slopes gave very similar results, whereas there were greater contrasts among other criteria. (C) 2016 Elsevier Inc. All rights reserved.

【 授权许可】

Free