全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于仿射投影的弹载图像几何失真校正方法

DOI: 10.11834/jig.20090415

Keywords: 仿射投影,几何失真,弹载图像,图像末制导

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对图像末制导系统中,由弹体姿态变化引起的图像几何失真,提出了一种新的弹载图像几何失真的校正方法,并首先根据仿射投影不改变目标平行结构的特性,提出了以仿射投影图像为目标进行校正的思想;然后根据弹载摄像机成像特点,推导出了目标透视投影和仿射投影与弹体俯仰角之间的函数关系;最后利用该函数关系,通过合理的坐标系设置,结合惯导和图像信息来求得目标的校正图像。仿真实验结果表明,该方法能有效地校正由弹体姿态引起的图像几何失真,不仅有利于目标的精确定位,而且对惯导误差不敏感,计算量也较小。

References

[1]  Makisara Kai, Karna Juha-petri, Lohi Anssi. Geometric correction of airborne imaging spectrometer data [ A ]. In: Proceedings of IEEE International Gcoscience and Remote Sensing Symposium [C], Pasadena, CA, USA, 1994 : 851-853.
[2]  Li Yong,Zhu Dai-yin,Zhu Zhao-da. Geometric distortion correction in the subaperture processing for high squint airborne SAR imaging [ A ]. In : Proceedings of IEEE International Geoscience and Remote Sensing Symposium [C] , Anchorage, AK, USA, 2004 : 3919-3922.
[3]  Li Wen-jing,Lee Tong. Image registration and object recognition by affine invariant matching [ A ] . In: Proceedings of International Symposium on Intelligent Multimedia, Video and Speech Processing [C] , Hong Kong, China, 2001 : 56-59.
[4]  Chetverikov Dmitry, Hajder Levente. Robust structure from motion under weak perspective[ A ]. In: Proceedings of the 2nd International Symposium on 3D Data Processing, Visualization, and Transmission [C] , Thessaloniki, Greece,2004 : 828- 835
[5]  Makisara Kai, Lohi Anssi, Karna Juha- petri. A system for geometric and radiometric correction of airborne imaging speetrnmeler data[ A ]. In: Proceedings of IEEE International Geoseienee and Remote Sensing Symposium [C], Pasadena, CA, USA, 1994 : 1503-1505.
[6]  Lauknes I, Johnsen H, Guneriusen T. Geometric and radiometic calibration of synthetic aperture radar images acquired in alpine regions-spaceborne and airborne [ A ] . In: Proceedings of IEEE International Geoseience and Remote Sensing Symposium [C], Seattle, WA, USA, 1998 : 1134-1136.
[7]  俞根苗 邓海涛 吴顺军.弹载SAR图像几何失真校正方法[J].西安电子科技大学学报:自然科学版,2006,33(3):386-389.
[8]  Hagege Rami, Francos Joseph. Parameteric estimation of two dimensional affine transformations [ A ]. In : Proceedings of International Conference on Acoustics, Speech and Signal Processing [C], Montreal, Canada,2004 : 305-308.
[9]  岳冬雪 黄新生.基于改进的多分辨率Hough变换的直线检测方法[J].计算机仿真,2006,23(9):76-79.
[10]  Horaud Radu, Christy Stephane, Dornaika Fadi. Object pose: The Link Between Weak Perspective, Para Perspective, and Full Perspective[R]. Rapport de Recherche No 2356,Institut National de Recherche en Informatique et en Automatique, France,1994.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133