| 无人艇载高清多光谱影像配准 |
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| 引用本文： | 吴军,曹延生,杨海生,刘志刚.无人艇载高清多光谱影像配准[J].遥感学报,2012,16(3):625-643. |
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| 作者姓名： | 吴军 曹延生 杨海生 刘志刚 |
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| 作者单位： | 桂林电子科技大学 电子工程与自动化学院, 广西 桂林 541004;桂林电子科技大学 电子工程与自动化学院, 广西 桂林 541004;桂林电子科技大学 电子工程与自动化学院, 广西 桂林 541004;北京师范大学 地理学与遥感科学学院, 北京 100875 |
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| 基金项目： | 国家自然科学基金(编号:60962003) |
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| 摘 要： | 针对无人艇载高清多光谱影像特性,提出了集成单应性矩阵内配准与置平薄板样条外配准的多光谱影像整体配准方案:(1)傅里叶-梅林变换引导下的多光谱影像相关匹配自动生成连接点;(2)单应性矩阵最小二乘联合估计实现多波段影像相互配准(内配准);(3)构建“置平”薄板样条变换模型实现多光谱影像序列无地理坐标配准(外配准),最后对无人飞艇搭载多CCD相机低空拍摄的高清多光谱影像进行配准验证,取得了约1个像元误差的内配准精度以及较好的外配准视觉质量。
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| 关 键 词： | 多模态影像配准 傅里叶-梅林变换 薄板样条 无人飞艇 |
| 收稿时间： | 2011/3/25 0:00:00 |
| 修稿时间： | 2011/10/13 0:00:00 |
Automatic registration of high-resolution multispectral imageries released by low-altitude unmanned airship |
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| WU Jun,CAO Yansheng,YANG Haisheng and LIU Zhigang.Automatic registration of high-resolution multispectral imageries released by low-altitude unmanned airship[J].Journal of Remote Sensing,2012,16(3):625-643. |
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| Authors: | WU Jun CAO Yansheng YANG Haisheng and LIU Zhigang |
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| Institution: | School of electronic engineering, Guilin University of electronic technology, Guilin 541004, China;School of electronic engineering, Guilin University of electronic technology, Guilin 541004, China;School of electronic engineering, Guilin University of electronic technology, Guilin 541004, China;State Key Laboratory of Remote Sensing Science (Beijing Normal University), School of Geography and Remote Sensing Science, Beijing Normal University, Beijing 100875, China |
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| Abstract: | High-solution multispectral imagery is attractive to various users and can be collected with a group of Charge-Coupled Device(CCD) cameras on board low-altitude Unmanned Airship(UA).Due to imperfect system integration and inherent nature of UA,however,the registration of High-solution multispectral imageries from UA are subjected to several challenges.In this paper,a low-cost multispectral imaging system composing of four CCD cameras is described as well as its potential issues to registration operation are summarized.After that,Fast Fourier Transformation(FFT) induced multispectral imagery Cross-Correlation Matching technique is developed to automatically generate high-precision tie pints for overlapped UA imageries.Next,Homograph joint estimation based on the Least Square adjustment is described in detail to align multispectral imagery acquired at each exposal and "leveled" Thin Plate Spline(TPS) transformation is established to register multispectral imagery sequences as well.Finally,experiments of registering high-solution multispectral imageries collected from low-altitude unmanned airship are implemented with proposed approaches and valuable conclusions are conducted. |
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| Keywords: | multimodal registration fourier-Mellin transform thin plate spline unmanned airship |
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