摘要
航空摄影瞬间,由于飞机的飞行运动和姿态变化会产生像移。为了提高图像的成像质量和摄影分辨率,必须进行像移补偿。在分析垂直摄影复合大面阵CCD航摄相机像移产生原因的基础上,确定采用PAV30稳定平台与大面阵CCD的TDI相结合的像移补偿方法,补偿后的像移残差经计算小于1/3像元,满足成像质量要求。根据实际航摄试验,证明所提像移补偿技术路线确实可行。
In the time of aerial photography,image motion occurs due to flight movement and attitude change,so image motion compensation (IMC)must be performed in order to improve image quality and photographic resolution.Based on the analysis of image motion cause of the composite large area-array CCD aerial camera,an IMC method is used,which combines the PAV30 stabilized platform and large area-array CCD's TDI.It also analyzes and calculates the image motion residual errors, which is less than 1/3 pixel after compensation and satisfies the imaging quality requirements.According to the actual aerial imaging experiment,it is proved that the IMC technology is feasible.
作者
江振治
李文于
郑浩
方勇
王刚
Jiang Zhenzhi;Li Wenyu;Zheng Hao;Fang Yong;Wang Gang(State Key Laboratory of Geo-Information Engineering,Xi'an 710054,China;Xi'an Research Institute of Surveying and Mapping,Xi'an 710054,China;Nanjing Jianbing Space Remote Sensing Information Technology Co.Ltd.,Nanjing 211106,China;Project Management Center,Beijing 100034,China)
出处
《测绘科学与工程》
2018年第4期42-47,共6页
Geomatics Science and Engineering
基金
国家高分对地观测专项资助项目(GFZX040303)
国家973计划资助项目(613317).
关键词
复合大面阵CCD相机
像移补偿
速高比
像移速度
像移残差
composite large area-array CCD camera
image motion compensation (IMC)
velocity to height ratio
speed of image motion
residual errors of image motion
