摘要
"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。
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.
出处
《航天返回与遥感》
北大核心
2015年第4期48-53,共6页
Spacecraft Recovery & Remote Sensing
基金
高分国土资源遥感应用示范系统(一期)(04Y30B01-9001-12/15)
资源一号02C卫星土地应用关键技术研究及推广(201411119)
关键词
影像配准
精度
策略
“高分二号”卫星
航天遥感
image registration
precision
strategy
GF-2 satellite
space remote sensing
