大视场空间遥感相机的像速场及图像传感器曝光积分控制

王翀; 尤政; 邢飞; 张高飞

doi:doi:10.3788/aos201333.0511002

光学学报, 2013, 33 (5): 0511002, 网络出版: 2013-04-09

大视场空间遥感相机的像速场及图像传感器曝光积分控制

Image Motion Velocity Field for Wide View Remote Sensing Camera and Detectors Exposure Integration Control

论文大纲

王翀 ^1,2,*尤政 ^1,2邢飞 ^1,2张高飞 ^1,2

作者单位

¹ 清华大学精密仪器与机械学系, 北京 100084

² 清华大学精密测试与仪器国家重点实验室, 北京 100084

摘要

大视场空间遥感器由于卫星轨道、姿态机动、颤振、地球星历、几何特性和载荷相机光学设计等因素耦合影响，成像过程中焦面像场的运动和图像形变表现出非线性时变规律。像速场的分布和变化会影响动态推扫的成像控制精度和成像质量。提出了一种新的遥感器像移速度场数学建模方法，通过分析具有空间光滑曲面的体目标视运动及其动态成像问题，推导了对地观测大视场相机像速解析式。算法具准确性好和效率高的优点，适用于大视场空间遥感器在轨像速匹配的嵌入式计算机处理和仪器设计。同时研究了强非线性像速场的像速匹配和偏流角跟踪的电荷耦合器件（CCD）曝光积分控制及优化问题。

Abstract

For space-borne remote sensors with wide field of view, images on focal planes motion deform nonlinearly as well as vary with time due to the affects from satellites orbital motions, attitude maneuverings, jittering, earth ephemeris and geometrical characteristics, optical designs and so on. The distribution of image velocity field determines the exposure integration accurate for the image formation procedure so as to affect the image qualities. A new method is proposed that it focus on to found the image motion velocity field mathematical model which especially appropriate to wide field of view sensors through analyzing the problems of image formation for apparent kinetic spatial object with smooth curved surface. Analytical formulas of image velocities are deduced. The algorithm is proved not only to be precise but also efficient. It can be employed as the dynamic imaging algorithms for embedded computers of orbiting payloads and their instrumentations. Based on this research, it′s concerned that an optimized approaches for charge coupled device (CCD) detectors exposure integration control via image velocities matching along with deflect angles compensations as the strong nonlinear image velocity fields.

参考文献

[1] J. W. Figoski. Quickbird telescope: the reality of large, high-quality, commercial space optics［C］. SPIE, 1999, 3779: 22～30

[2] M. K. Cook, B. A. Peterson, D. Gene et al.. IKONOS technical performance assessment［C］. SPIE, 2001, 4381: 94～108

[3] 韩昌元. 近代高分辨率地球成像商业卫星［J］. 中国光学与应用光学, 2010, 3(3): 202～208

Han Changyuan. Recent earth imaging commercial satellites with high resolutions ［J］. Chinese J. Optics and Applied Optics, 2010, 3(3): 202～208

[4] 冯钟葵, 石丹, 陈文熙等. 法国遥感卫星的发展从SPOT到Pleidades [J]. 遥感信息, 2007, (4): 87～92

Feng Zhongkui, Shi Dan, Chen Wenxi et al.. The progress of French remote sensing satellitefrom SPOT tavard Pleiades [J]. Remote Sensing Information, 2007, (4): 87～92

[5] 常凌颖, 赵葆常, 杨建峰等. 两线阵立体测绘CCD相机光学系统设计［J］. 中国激光, 2011, 38(8): 0816001

Chang Lingying, Zhao Baochang, Yang Jianfeng et al.. Optical system design of a two-linear array stereoscopic mapping CCD camera ［J］. Chinese J. Lasers, 2011, 38(8): 0816001

[6] 赵葆常, 汶德胜, 杨建峰等. 单镜头两视角同轨立体成像、TDI CCD自推扫和速高比补偿嫦娥二号CCD相机技术［J］. 光学学报, 2011, 31(9): 0900115

Zhao Baochang, Wen Desheng, Yang Jianfeng et al.. Two bore-sight stereo mapping with single lens, TDI CCD pushing model imaging and compensations of the speed-to-height rate—Chang′E-2 CCD camera［J］. Acta Optica Sinica, 2011, 31(9): 0900115

[7] Wang Jiaqi, Yu Ping, Yan Changxiang et al.. Space optical remote sensor image motion velocity vector computational modeling, error budget and synthesis ［J］. Chin. Opt. Lett., 2005, 3(7): 414～417

[8] 颜昌翔, 王家骐. 航相机像移补偿计算的坐标变换方法［J］. 光学精密工程, 2000, 8(3): 203～207

Yan Changxiang, Wang Jiaqi. Method of coordinate transformation for IM & IMC calculation in aerospace camera system ［J］. Optics and Precision Engineering, 2000, 8(3): 203～207

[9] 于春风, 丁亚林, 惠守文等. 三反射系统航空遥感器像旋转分析［J］. 光学学报, 2011, 31(8): 0823002

Yu Chunfeng, Ding Yalin, Hui Shouwen et al.. Analysis of image rotation for aerial remote sensor with three-mirror reflective optical system ［J］. Acta Optica Sinica, 2011, 31(8): 0823002

[10] 韩昌元. 高分辨力空间相机的光学系统研究［J］. 光学精密工程, 2008, 16(11): 2165～2171

Han Changyuan. Study on optical system of high resolution space camera［J］. Optics and Precision Engineering, 2008, 16(11): 2165～2171

[11] H. Samija, I. Markovic, I. Petrovic. Optical flow field segmentation in an omnidirectional camera image based on known camera motion［C］. Proceedings of the 34th International Convention in MIPRO, May 2011, Opatija, Croatia

[12] D. Todorovi. Analysis of two- and three-dimensional rigid and nonrigid motions in the stereokinetic effect ［J］. J. Opt. Soc. AM. A, 1993, 10(5): 804～826

[13] S. Roques, L. Jahan, B. Rougé et al.. Satellite attitude instability effects on stereo images［C］. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004, 3: 477

王翀, 尤政, 邢飞, 张高飞. 大视场空间遥感相机的像速场及图像传感器曝光积分控制[J]. 光学学报, 2013, 33(5): 0511002. Wang Chong, You Zheng, Xing Fei, Zhang Gaofei. Image Motion Velocity Field for Wide View Remote Sensing Camera and Detectors Exposure Integration Control[J]. Acta Optica Sinica, 2013, 33(5): 0511002.

大视场空间遥感相机的像速场及图像传感器曝光积分控制

关于本站 Cookie 的使用提示

全站搜索

大视场空间遥感相机的像速场及图像传感器曝光积分控制

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索