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The research and realization of the forest information extraction based on the WorldView-2 image

LING Chun-li①,ZHU Lan-yan①,WU Li-min②(①Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;②Kunming Urban Planning and Information Center;Kunming 650011,China)  
The forest plays an important role in urban planning,forest analysis and soil erosion management.After studying the segmentation and the objects features,the forest information is extracted from the WorldView-2 image based on the object-oriented method in this article.The users' accuracy of the forest information extraction is 94%,and the mapping accuracy is 97.2%.Then,the pixel binary model is applied to the forest objects to calculate their vegetation coverage.There is a conclusion that we can extract the forest information from the high resolution image based on the object-oriented method economically,accurately and efficiently.It is good to apply the pixel binary model to the objects to calculate the vegetation coverage,and the vegetation cover situation can be represented well.
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