Using SPOT 5 fusion-ready imagery to detect Chinese tamarisk(saltcedar)with mathematical morphological method

作     者：Q.S.Liu G.H.Liu C.Huang C.J.Xie 

作者机构：State Key Laboratory of Resources and Environmental Information SystemInstitute of Geographic Science and Natural Resources ResearchChinese Academy of SciencesBeijingChina 

出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)

年 卷 期：2014年第7卷第3期

页      面：217-228页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by a grant from the National Natural Science Foundation of China(Project No.41023010) a grant from the Strategic Priority Research Program of Chinese Academy of Sciences(Project No.XDA05050601) 

主　　题：SPOT 5 Chinese tamarisk spatial structure mathematical morphology patch 

摘      要：Chinese tamarisk(saltcedar)is a deciduous shrub that occurs widely across the Yellow River Delta in *** spatial structure of Chinese tamarisk is believed to have an influence on the landscape and habitats of rare *** this study,first,Chinese tamarisk is detected using Canny edge detector and mathematical morphological operators based on SPOT 5 fusion-ready *** the numbers,areas,locations,and patch spacing of Chinese tamarisk patches are *** experiments show that the detection accuracy of Chinese tamarisk patches is about 93.4%after the disconnection of connected *** distribution orientation of about 70%of the patches is approximately *** 91%of the minimum distances among the patches are between 12.5 and 57.5 *** rose graph indicates that the main azimuth between patches is north--northwest,and the second is northeast and *** present study indicates that the integrating Canny edge detector with the algorithms for extracting circular and elliptical objects based on mathematical morphology is simple and effective for detecting Chinese tamarisk patches and is easy to identify the spatial structure of Chinese tamarisk patches,which reduces the time and labor for the visual interpretation of Chinese tamarisk patches.