The research of water information extraction techniques based on remote sensing

Through comprehensively analyse water information extracted process using the single-band threshold, the relationship between multi-band spectrum, NDWI NDVI, to find its confounding factors. That can be used to establish the classification decision tree for water body extraction. The result shows it can improve the reliability of information Extraction. Because the difference of the remote sensors, the classification decision tree needs to be established after comprehensively study the water response to the data bands.