航空機レーザ計測による広葉樹林の樹高, 樹冠面積の抽出

抄録

We discuss the possibility of surveying the height and crown area of single tree in broadleaved forest by application of airborne laser scanner system. The process of this study includes : interpose the ground data for preparing accurate DTM (Digital Terrain Model) and DHM (Digital Height Model), extracting top of crown using method of segmentation-based in DHM, create crown area by means of segmentation on defined cross-section which the height can be designated. In result of our study, all of bigger trees, which compose upper crown-layer, had been extracted and the crown area on llm above ground had been computed.