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海岸带地区SPOT-5遥感影像无控制点正射校正方法
引用本文:韩晓庆,刘佳,李静,张芸,苏艺,高伟明. 海岸带地区SPOT-5遥感影像无控制点正射校正方法[J]. 测绘科学, 2013, 38(3): 121-124
作者姓名:韩晓庆  刘佳  李静  张芸  苏艺  高伟明
作者单位:1. 河北省国土资源利用规划院,石家庄,050051
2. 河北师范大学资源与环境科学学院河北省环境演变与生态建设实验室,石家庄,050024
3. 河北交通职业技术学院交通工程系,石家庄,050035
4. 河北省地理科学研究所,石家庄,050011
基金项目:河北省滨海湿地时空演变过程及驱动力研究,国家海洋局"908"专项河北省海岸带及海岛调查
摘    要:本文利用ENVI遥感软件处理平台,针对海岸带地区影像特点,对传统的SPOT-5遥感影像正射校正流程进行改进,主要有:增加SPOT传感器辐射校正;在影像融合前,使用伪正射校正代替几何校正;利用GDEM数据代替传统的DEM测量数据及野外测点数据;使用Google Earth Bridge功能检验校正结果精度。结果表明:经过改进的无控制点正射校正流程可有效减少人为误操作产生的误差,降低了正射校正的难度,提高了影像处理的效率,拓宽了影像检验的思路。正射校正影像精度符合研究要求,取得较为满意的结果。

关 键 词:ENVI  SPOT-5  GDEM  无控制点  正射校正  精度验证

Orthorectification of SPOT-5 remote sensing image without GCP in coastal zone
HAN Xiao-qing,LIU Jia,LI Jing,ZHANG Yun ④,SU Yi,GAO Wei-ming. Orthorectification of SPOT-5 remote sensing image without GCP in coastal zone[J]. Science of Surveying and Mapping, 2013, 38(3): 121-124
Authors:HAN Xiao-qing  LIU Jia  LI Jing  ZHANG Yun ④  SU Yi  GAO Wei-ming
Affiliation:②(①Hebei Utilization and Planning Institute of Land Resources,Shijiazhuang 050051,China;②Hebei Key Laboratory of Environmental Change and Ecological Construction,College of Resources and Environmental Science,Hebei Normal University,Shijiazhuang 050024,China;③Department of Traffic Engineering,Hebei Vocational and Technical College of Communications,Shijiazhuang 050035,China;④Hebei Institute of Geographical Sciences,Shijiazhuang 050011,China)
Abstract:Based on the ENVI remote sensing software,the paper provided several methods to improve traditional orthorectification process of the SPOT-5 image according to the features of coastal zone,such as: increasing SPOT sensor radiometric calibration,using false-orthorectification instead of geometric correction before image fusion,using GDEM data instead of traditional measured data and measured point data in the field,testing the definition of results by the Google Earth Bridge function.The results showed that the improved processing,non-GCP-orthorectification,could reduce the error caused by human errors effectively,and reduce the difficulty of orthorectification to improve the efficiency of image processing,and provide the new way in image testing.The study results could meet the requirements which were satisfied with the better definition of the SPOT-5 image.
Keywords:ENVI  SPOT-5  GDEM  non-GCP  orthorectification  test definition
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