Multiscale segmentation of tree crown from aerial images based on the DSM

作者：Li Chao Yang^*; Yan Guang Jian; Xiao Zhi Qiang; Li Xiao Wen; Guo Jun; Wang Jin Di

来源：Journal of Beijing University of Posts and Telecommunications, 2006, 29(6): 40-43.

• Aerial image
• Algebraic multigrid technique
• Digital surface model (DSM)
• Global measure
• Image size
• Multiscale segmentation
• Multiscale weight aggregation
• Pixel
• Position orientation system
• Seed position
• Segmentation method
• Segmentation seed
• Tree crown segmentation
• Tree top

A segmentation method by multiscale weight aggregation is presented for segmentation of the tree crowns based on the digital surface model (DSM). The tree top from the DSM for the segmentation of the tree crown is firstly selected. Then the tree top is projected to the aerial image as the seed of the segmentation. Based on a global measure, an algebraic multigrid technique is used to construct the pixels to a multiscale segmented image by weight aggregation. Through the position of the seed and the image size, the segmented tree crown is obtained. The experimental results demonstrate that the algorithm can accurately segment the tree crown which is projected to different viewing angle aerial images.

• 出版日期2006
• 单位北京大学