Questions of Concern in Drawing Up a Remote Sensing Change Detection Plan

Abstract

Change detection is one of the most important applications in remote sensing. Regarding the long period in data gathering by remote sensing, the potential for change detection of the planet through this technology is high. Designing a remote sensing change detection plan is a big challenge due to the existence of several options regarding methodologies and data. Previous reviews in the literature have mostly focused on the change detection methodology, while the other aspects of a change detection plan are often not studied in detail. The major aspects of a remote sensing change detection plan include subject of the change detection, the time elapsed, the study area, analysis unit, accuracy requirement, and outputs constituting focal points here. These aspects are briefed in the form of eight questions fitted in a change detection process together with related discussions. Finally, a table of the main steps involved in the change detection plan and the outputs of each step thereof is compiled. The present review exhibits that more research is necessary to explore additional aspects of a change detection plan beyond the existing change detection methods. © 2019, Indian Society of Remote Sensing.