摘要
分析了资源三号测绘卫星影像产品的高精度要求和几何处理的关键问题,提出了基于虚拟TDI CCD阵列重成像技术的传感器校正产品生成方法。尤其针对多光谱影像4个谱段采用同一虚拟TDI CCD,解决了谱段间几何配准问题。生产了河北安平地区三线阵及多光谱传感器校正产品,进行了平差实验和立体模型定向精度分析。利用传感器校正产品进行了数字表面模型(DSM)和数字正射影像(DOM)生产实验,并进行精度验证。结果表明,资源三号测绘卫星传感器校正产品的几何精度完全满足1∶5万立体测图要求。
By analyzing the high accuracy requirements of ZY-3 image products and the key problems in geometric processing, this paper proposes a production method for SC images based on virtual TDI CCD array imaging technology. This method can be used to solve the geometrical registration problem in 4-bands multi-spectral image especially, since these adopt the same virtual TDI CCD array. Data covering the Anping district, Hebei province, was used to produce the three-linear array and SC prod- uct, and to carry out adjustment experiments and precision analysis of the stereo model orientation. Experimental production was implemented to produce digital elevation models and digital orthographymaps, as well verify the precision of the products. Experimental results show that the geometric pre- cision of the SC product performs very well in the stereo mapping of 1 ： 50 000 scale products.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2014年第3期287-294,299,共9页
Geomatics and Information Science of Wuhan University
基金
国家科技支撑计划资助项目(2011BAB01B01
2011BAB01B02
2012BAH28B04
2011AA120404)
国防科工局资助项目~~
