Abstract

The paper presents the results of research and application of rapid and highly effective detection and assessment solutions on the amount, extent of land cover change serving the formulation of technical design - cost estimation of a project for updating the database using SPOT 6/7 images and the 2009 national geographic database. The authors convert the base geographic data from vector format to raster format combining classification, grouping, then use change detection technique based on multi-spectral image classification technique to create matrix of changes. The process of detecting and assessment of changes in geographical objects is carried out in Hung Tay commune, Hung Nguyen district, Nghe An province.