基于回溯搜索策略的遥感专题信息处理方法——以植被盖度信息处理为例

A Method of RS Thematic Information Processing Based on Backtracking Search Strategy——A Case Study of Vegetation Coverage Information Processing

提出了在栅格数据中应用回溯搜索策略直接获取图斑空间信息以辅助专题信息处理的方法,该方法避免了矢量化过程,提高了遥感专题信息的处理效率和精度.以浙江省余杭区植被盖度专题信息处理为例,使用该方法遍历栅格遥感影像,对连通区域的植被盖度信息进行归一化处理,实验结果表明,该方法满足遥感专题信息处理需求,效率较高且易于实现.

A novel method is proposed to directly obtain map-spot spatial information from remote sensing raster images,using the backtracking search strategy,to process the RS thematic information. Avoiding vectorization,this method improves the efficiency and precision of RS thematic information processing. In a case study of processing the vegetation coverage information in Yuhang,Zhejiang,this method was applied to traverse the raster data to normalize the vegetation coverage information in a connected region,and the results showed that this method is highly efficient and easy to implement and can meet the demand of RS thematic information processing.