2D change detection from satellite imagery: Performance analysis and impact of the spatial resolution of input images

In the past few years, many change detection methods have been proposed in the GIS community to support the update of existing building databases. If most of these methods use images to settle the problem, only a few of them analyse the optimal resolution to use for input images. The main goal of this paper - that focuses on the use of satellite images - is to provide possible answers to this question. For that purpose, a change detection method is tested on several test areas, for which input images are available at different resolutions (50 cm and 70 cm). The outcomes of the method are then evaluated and analysed in order to highlight the impact of the spatial resolution of input images on the system´s efficiency.