Impact of Different Feature Engineering Techniques for Better Classification of Diverse Crops with Sentinel-2 Imagery

Maaz Alam; Arbab Masood Ahmad; Muhammad Iftikhar Khan; Atif Sardar Khan; Tiham Khan; Mahmood Ali Khan; Syed Ghulam Moeen-ud-din Banoori

Authors

Maaz Alam Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar
Arbab Masood Ahmad Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar, Pakistan
Muhammad Iftikhar Khan Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar, Pakistan
Atif Sardar Khan United States-Pakistan Center for Advanced Studies, University of Engineering and Technology, Peshawar, Pakistan
Tiham Khan Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar, Pakistan
Mahmood Ali Khan Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar, Pakistan
Syed Ghulam Moeen-ud-din Banoori Department of Computer Systems Engineering, University of Engineering and Technology, Peshawar, Pakistan

Keywords:

Feature Engineering, Multispectral, Temporal resolution, Random forest, Gradient boosting classifier

Abstract

Observing a large area of Earth's surface using remote sensing has made our work very easy in order to monitor changes. This revolutionary tech can help us make big decisions on time. For this purpose, Sentinel-2 imagery is considered to be perfect since the imagery provided by this satellite is easily available https://scihub.copernicus.eu/ website. The European Space Agency (ESA) and the European Union (EU) have created the Copernicus Program, which includes the Sentinel-2 satellites that use onboard multispectral scanners to effectively monitor the Earth’s surface. This program has contributed significantly to the production of Sentinel-2 multispectral products, which provide high-resolution satellite data for monitoring land cover and use. The Sentinel-2 constellation is the second set of satellites in the ESA Sentinel missions, with the primary goal of land cover/use monitoring. Besides the availability of imagery, Sentinel-2 temporal resolution is 5 days, which helps in quick observation. In this manuscript, we have used different feature engineering techniques on our dataset in order to observe their performance and importance for better classification of diverse crops. We have achieved an overall accuracy of 99% after extracting important information from the dataset and applying a random forest and a gradient boosting classifier. The data set used for this research work was collected by surveying diverse crops in the region of Harichand, which is located North-South of Charsada District in Khyber-Pakhtunkhwa, Pakistan. The detailed Explanation of our Work and proposed methods is discussed in this article.

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