国土资源遥感2017，Vol.29Issue(4)：190-196,7.DOI:10.6046/gtzyyg.2017.04.29
高分一号卫星WFV影像全国陆地镶嵌与制图技术研究
Research on China' s land image mosaicking and mapping technology based on GF-1 satellite WFV data
摘要
Abstract
GF-1 is the first satellite in the major projects of high resolution observation system in China. It has provided abundant data for high and moderate spatial resolution image mosaicking for more than four years since its launching. The process of image mosaicking was based on the characteristics of the wide field of view ( WFV ) images of GF -1,including four key techniques i. e. , data selection, geometric rectification, color adjustment, image mosaicking and mapping. The high precision geometric positioning of wide image is the key technology. After high quality data selection, ground control points ( GCPs) were collected automatically. The root mean square error (RMSE) of each image should be less than 1 pixel with the average number of GCPs being 54. Then rational function model( RFM) was applied to the images for ortho-rectification. The 1:5000000 national land image map was completed after color adjustment and mosaicking. This map has high spatial accuracy, colored pixels and temporal resolution. The method proposed in this paper could provide an important reference for the series of GF satellites image mosaicking and mapping, and would promote the domestic satellites to play a greater role in investigation of major resources and environment in China.关键词
高分一号/WFV影像/遥感数据加工/正射纠正/镶嵌制图Key words
GF-1/WFV image/remote sensing image processing/ortho-rectification/mosaic mapping分类
信息技术与安全科学引用本文复制引用
江威,何国金,刘慧婵,龙腾飞,王威,郑守住,马肖肖..高分一号卫星WFV影像全国陆地镶嵌与制图技术研究[J].国土资源遥感,2017,29(4):190-196,7.基金项目
国家重点研发计划全球变化及应对专项课题项目"大尺度全球变化数据产品快速生成方法"(编号:2016YFA0600302)、海南省重大科技计划项目"海南省遥感大数据服务平台建设与应用示范"(编号: ZDKJ2016021 )和海南省重大科技计划项目"新型海洋信息感知关键技术及设备研发"(编号: ZDKJ2016015)共同资助. （编号:2016YFA0600302）
