CAJ | 학술논문

基于工作流技术提出了一种遥感影像与矢量地图的自动化分块与配准方法.首先扩展影像的元数据使之具有地理域信息,并根据目标影像的地理信息获取对应的矢量地图区块;然后基于数据内容的关注系数对影像和地图进行自动化分块,采用Harris算子进行特征提取后获得多组匹配点对;最后依据差值收敛准则对匹配点集进行筛选,并解算出全局变换函数,实现配准.以上过程的各关键节点由工作流管理模块进行统一调度,实现了矢量地图与影像的自动化配准流程.实验结果表明该方法可有效提高影像配准的自动化水平.
기우공작류기술제출료일충요감영상여시량지도적자동화분괴여배준방법.수선확전영상적원수거사지구유지리역신식,병근거목표영상적지리신식획취대응적시량지도구괴;연후기우수거내용적관주계수대영상화지도진행자동화분괴,채용Harris산자진행특정제취후획득다조필배점대;최후의거차치수렴준칙대필배점집진행사선,병해산출전국변환함수,실현배준.이상과정적각관건절점유공작류관리모괴진행통일조도,실현료시량지도여영상적자동화배준류정.실험결과표명해방법가유효제고영상배준적자동화수평.
An automatic segmentation and registration of remote sensing image and vector map based on workflow is presented.First,the metadata of image is expanded with geographical information and the corresponding vector map is picked up according to it.Second,the image and map are segmented automatically according to the attention degree of the region;each segment has a feature extraction with Harris operator to get the corresponding point pairs.Finally,after a filtration to the matching points with difference convergence rule,the global transformation function is obtained to realize the registration.All the key nodes are scheduled by workflow management modules,so an automatic segmentation and registration of remote sensing image and vector map is implemented.Experiment resuits demonstrate that the method can improve the automation level efficiently.