| CCD相机中高空摆扫航摄数字图像的系统校正 |
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| 引用本文： | 王俊华,庞怡杰,王晶,唐娉.CCD相机中高空摆扫航摄数字图像的系统校正[J].地球信息科学,2007,9(5):105-109. |
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| 作者姓名： | 王俊华 庞怡杰 王晶 唐娉 |
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| 作者单位： | 1. 中国科学院遥感应用研究所, 北京 100101;
2. 空军第六研究所, 北京 100085 |
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| 摘 要： | 随着数字相机技术的发展,以胶片为主体的机载航空平台逐步向数字化平台发展。本文结合国内最先进的CCD航空数码相机的应用,分析了CCD相机中高空摆扫航摄图像的成像过程、成像模型、图像几何形变与计算。在研究倾斜中心投影成像模型的基础上,提出带有飞行位移的列倾斜中心投影成像模型的系统校正方法,校正了由相机装机倾角和飞机飞行位移所导致的图像几何形变,并通过校正结果图像的拼接验证了系统校正的必要性和有效性。
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| 关 键 词： | CCD相机 摆扫 系统校正 拼接 |
| 收稿时间： | 2005-06-12; |
| 修稿时间： | 2005-06-12 |
The System Correction of Digital Image by CCD Camera of Whisk Broom Model in Middle-high Space |
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| WANG Junhua,PANG Yijie,WANG Jing,TANG Ping.The System Correction of Digital Image by CCD Camera of Whisk Broom Model in Middle-high Space[J].Geo-information Science,2007,9(5):105-109. |
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| Authors: | WANG Junhua PANG Yijie WANG Jing TANG Ping |
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| Institution: | 1. Institute of Remote Sensing Applications, CAS, Beijing 100101, China;
2. Airforce Sixth Institute, Beijing 100085, China |
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| Abstract: | With the development of digital camera technology, the film-oriented airborne remote sensing platform is developing toward digital imaging platform. With the application of the latest aerial digital camera with CCD as its core in China,we analyse the imaging process, imaging model, geometrical distortion and its computing of digital image by CCD camera of whisk broom model in the middle-high space. According to the research of the imaging model of slantwise central projection, we bring forward the system correction method which is based on the imaging model of slantwise central projection in column with the flight displacement, correct the image geometrical distortion which is resulted from the installing obliquity and the flight displacement, and then test the necessity and the validity of the system correction by verifying the image mosaics. |
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| Keywords: | CCD camera whisk broom system correction mosaic |
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