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利用航片、假彩色合成卫片对四川三州及西藏东南部地区的土地类型建立解译标志,用此标志和地理比较的综合分析法对一级地类的判出率和判准率达100％;二级地类判准率达100％,判出率达88.5％。勾绘的地类界线位移量均小于0.3毫米,比直接利用地形图的精度高2—3倍,转绘后的面积量算精度亦高。比单独使用地形图或航片进行全野外调绘节省资金20—80％。
The use of aerial photos, false color synthesis of Sanzhou, Sichuan and southeastern regions of the land to establish the interpretation of landmarks, with the signs and geographical comparison of the comprehensive analysis of the first class to determine the classification rate and the rate of up to 100%; two land classification rate of 100%, the rate of 88.5%. The delineation of the delineation of the boundary line displacement are less than 0.3 mm, 2-3 times higher than the direct use of topographic map accuracy, the area after the transfer of the plot accuracy is also high. Than the use of topographic maps alone or aerial photos to save money 20-80%.