CAJ | 학술논문

高分辨率遥感影像作为地理国情监测的基础数据，其新数据获取后的变化检测与适时更新是地理国情实现动态监测的关键。该文将已有的正射影像和数字高程模型作为新获取高分辨率卫星影像的控制资料，结合通用成像模型的有理多项式模型，首先实现高分辨率卫星影像与已有 DOM／DEM 之间的特征提取和匹配，然后利用 RFM 模型的区域网平差对匹配结果进行粗差剔除，从而实现高分辨率卫星影像的对地定位，最终实现正射影像更新。实验证明该方法可提高匹配精度与定向参数的可靠性。
고분변솔요감영상작위지리국정감측적기출수거，기신수거획취후적변화검측여괄시경신시지리국정실현동태감측적관건。해문장이유적정사영상화수자고정모형작위신획취고분변솔위성영상적공제자료，결합통용성상모형적유리다항식모형，수선실현고분변솔위성영상여이유 DOM／DEM 지간적특정제취화필배，연후이용 RFM 모형적구역망평차대필배결과진행조차척제，종이실현고분변솔위성영상적대지정위，최종실현정사영상경신。실험증명해방법가제고필배정도여정향삼수적가고성。
High-resolution remote sensing imagery are the basic data to achieve change detection and data updating after new data acquisition in the geographic conditions dynamic monitoring.In this paper,we present an approach for orthophoto updating based on the basic geographic information resources.We firstly realize feature extraction and matching of high-resolution satellite imagery by employing the existing orthophotos and digital elevation models as the control data.And then,we use block-adjustment based on rational function model to reject gross error and achieve absolute orientation to achieve the automatic orthophoto updating.The experiment for GF-1 images shows that the proposed method helps improve the matching accuracy and the reliability of the orientation.