Some other methods used the multitemporal high-resolution imagery, to detect changes by the spectral difference or use supervised classification to discover the building position to carry out a comparison for change detection (Knudsen and Olsen, 2003).
This paper describes a proposed workflow for lidar-based change detection. The paper is organised as follows. Section 2 describes the study areas and data sources. Section 3 describes the experiments while Section 4 presents and evaluates the results. We summarise our results in Section 5.