基于高分影像的林地变化检测和自动分割算法探讨  

Study on the Algorithms of Forest Land Change Detection and Automatic Zoning Based on Two-stage High Resolution Images

作　　者：付晓燕 岳彩荣[1] 蒋之富 FU Xiaoyan;YUE Cairong;JIANG Zhifu(Southwest Forestry University,Kunming Yunman 650224;Kunming Survey&Design Institute of State Forestry Administration,Kunming Yunnan 650031)

机构地区：[1]西南林业大学,云南昆明650224 [2]国家林业和草原局西南调查规划院,云南昆明650031

出　　处：《山东林业科技》2022年第6期67-71,共5页Journal of Shandong Forestry Science and Technology

摘　　要：根据前后两期高分辨率遥感影像,基于像元颜色值和像素颜色变化构成的纹理特征,应用多线程技术对两期高分辨率遥感影像进行像元聚类并标记聚类区域,对聚类区域进行自动分割,形成前后两期林地、非林地初步范围,在一定的偏移容差基础上,对比前后两期林地、非林地初步范围,筛选变化面积大于阈值的变化区域,提取变化区域范围,并对变化区域界线自动平滑,实现林地变非林地、非林地变林地的快速变化检测,并形成林地动态变化监测数据,为林地动态变化监测提供依据。Based on the pixel texture composed of pixel color value and pixel color change,the multi-threading technology is applied to cluster the pixels of the two high-resolution remote sensing images and mark the clustering regions.The preliminary ranges of forestland and non-forestland are formed.On the basis of a certain migration tolerance,the preliminary ranges of forestland and non-forestland are compared between the two periods,and the preliminary ranges of forestland and non-forestland are screened.Select the change area which is larger than the threshold,extract the change area,smoothen the boundary of the change area automatically,realize the fast change detection of forest land to non-forest land and non-forest land to forest land,and form the monitoring data of forest land dynamic change,which provides the basis for monitoring the dynamic change of forest land.

关 键 词：林地变化检测 自动分割 像元聚类 

分 类 号：S757.2[农业科学—森林经理学]