CAJ | 학술논문

“高分二号”（GF-2）卫星能够提供空间分辨率优于1m的全色影像和优于4m的多光谱影像，可以作为高精度土地基础数据采集的影像数据源之一。针对多光谱与全色影像配准精度对后续数据处理和应用影响较大的问题，文章分别采用原始多光谱与全色影像的自动配准和纠正后配准两种方法，对比不同策略的配准精度，结合土地资源遥感调查监测的相关技术规程，形成 GF-2卫星多光谱与全色影像配准策略。对10景山区和平原区完整景GF-2卫星影像进行了试验，结果表明，原始多光谱与全色影像自动配准方法不仅能保证配准精度，而且能缩短影像预处理完成时间，是规模化数据应用中较好的配准策略。
“고분이호”（GF-2）위성능구제공공간분변솔우우1m적전색영상화우우4m적다광보영상，가이작위고정도토지기출수거채집적영상수거원지일。침대다광보여전색영상배준정도대후속수거처리화응용영향교대적문제，문장분별채용원시다광보여전색영상적자동배준화규정후배준량충방법，대비불동책략적배준정도，결합토지자원요감조사감측적상관기술규정，형성 GF-2위성다광보여전색영상배준책략。대10경산구화평원구완정경GF-2위성영상진행료시험，결과표명，원시다광보여전색영상자동배준방법불부능보증배준정도，이차능축단영상예처리완성시간，시규모화수거응용중교호적배준책략。
Panchromatic image with resolution better than 1 meter and multispectral image with resolution better than 4 meters simultaneously provided by GF-2 satellite, could be a potential data source for high precision land information acquisition. Aiming at the large effect of multispectral and panchromatic image registration precision on follow-up image processing and application, this article presents two registration methods, which are automatic registration of original images and registration after image correction, and draws up a registration strategy after analyzing their precision in consideration technical regulations of land remote sensing investigation and monitoring. Using ten pairs of multispectral and panchromatic image, which cover plain and mountain areas, the experiments show that, automatic registration of original images is a better strategy for large scale data application, not only for ensuring its high precision but also for reducing data-process time of the whole workflow.