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CCD 遥感图像几何校正的实时处理算法初探 被引量:4

STUDY ON REAL TIME PROCESSING ALGORITHM OF GEOMETRIC CORRECTION FOR CCD REMOTELY SENSED IMAGERY
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摘要 为向星上处理迈进,实时完成CCD遥感图像1B级几何校正,迫切需要建立一个准确而又能快速进行运算的反映校正前后几何位置对应关系的函数表达式和重采样算法。通过论证把校正前后一维位置对应关系高度精确地表示为一元三次多项式关系,从而改用递推极大地简化计算;在此基础上提出了一维灰度重采样新算法——加权平均法及其快速算法。当整幅图每行均按此处理之后,再根据获得的GPS定轨定姿数据加注出图像的地理经纬网,从而得到完整的1B级几何校正产品。初步微机仿真实验表明,只需适当引入多处理器,本算法达到实时完全可行。 Since the processing of remote sensing images is increasingly in real time,it is important to propose a new geometric correction algorithm for imagery of linear and area array charge coupled devices(CCD),which can be used to fast and accurately calculate the corrected geometric positions and resample their gray scales.In this paper,the relational expression to shift one dimensional position is proved to be a cubic multinomial,to which fast recurrence can be applied finely,and the one dimensional resample algorithm is also described,both offering great time savings.When every line of an image has been done accordingly ,the lines of longitude and latitude is indicated as well,based on positioning data given by GPS.So far,a rectified image product with complete 1B level is available.Simulation tests with PC have showed that the algorithm is believed to achieve real time capability if multiple processors are introduced appropriately.
作者 陈霄 何志勤
出处 《中国空间科学技术》 EI CSCD 北大核心 1997年第5期46-53,共8页 Chinese Space Science and Technology
关键词 遥感成像 几何校正 实时处理 计算方法 CCD Remote imaging Correction Real time processing Calculation method
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参考文献4

  • 1周忠谟,GPS卫星测量原理与应用,1992年
  • 2何志勤,计算机在航天工程的应用学术论文集,1991年
  • 3团体著者,卫星遥感图像的几何校正,1987年
  • 4胡毓钜,地图投影,1986年

同被引文献20

  • 1王茂新,沙奕,卓于莉.关于NOAA AVHRR图象重采样及投影方法的研究[J].中国图象图形学报(A辑),1997,2(1):38-42. 被引量:14
  • 2孙家柄 舒宁 关泽群.遥感原理、方法和应用[M].北京:测绘出版社,1999..
  • 3S-NT-73-12-SI SPOT Satellite Geometry Handbook Edition 1- Revision 0 2002-01-15 SPOT IMAGE
  • 4张永生.遥感图像信息系统.北京:科学出版社,2000(Zhang Yongsheng.Remote Sensing Image Information System(in Chinese).Beijing:Science Press,2000)
  • 5郭德方.遥感图像的计算机处理和模式识别.北京:电子工业出版社,1987(Guo Defang.Remote Sensing Image Computer Processing and Pattern Recognition(in Chinese).Beijing:Publishing House of Electronic Industry,1987)
  • 6A Bannari,D Morin,C B Benie,et al.A theoretical review of different mathematical models of geometric corrections applied to remote sensing images.Remote Sensing Reviews,1995,13:27~47
  • 7S Wisetphanichkij,K Dejhan,et al.An improvement of geometric correction of satellite image.The 19th Asian Conf on Remote Sensing(ACR'98),Manila,Philippines,1998
  • 8沈绪榜.MPP嵌入式计算机设计.北京:清华大学出版社,1999(Shen Xubang.Embedded MPP Computer Design(in Chinese).Beijing:Tsinghua University Press,1999)
  • 9朱述龙,张占睦.遥感图像获取与分析.北京:科学出版社,2000(Zhu Shulong,Zhang Zhanmu.Apprehension and Analysis of Remote Sensing Image(in Chinese).Beijing:Science Press,2000)
  • 10胡如忠.中巴地球资源卫星及其应用[M].北京:宇航出版社,2002.

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