基于后推式航空数字相机像移补偿试验及效果评价  

Experiment and effect assessment of forward motion compensation in airborne digital camera based on the backward-push

作　　者：李晶宜[1,2] 方俊永[2] 刘学[2] 许川佩[1] 

机构地区：[1]桂林电子科技大学,广西桂林541004 [2]中国科学院遥感应用研究所,北京100101

出　　处：《光学技术》2012年第5期545-550,共6页Optical Technique

基　　金：北京市科技计划项目"高性能航空光学遥感器的研制(D09080103760802)";国家重大科技基础设施建设项目"航空遥感系统"载荷研制"多模态数字相机(10K00HKB01C)"

摘　　要：分析了航空数字相机像移的产生机理,提出了一种后推式像移补偿方法。搭建了航空数字相机的航拍仿真试验台,通过微米电机控制相机镜头反向运动的补偿速度和补偿量,实现后推式像移补偿。利用图像清晰度评价补偿前后的图像效果,补偿后像移残差值低于1/3像素。最后给出了后推式补偿方法与软件补偿方法的对比,结果表明,后推式补偿方法在补偿精度方面优于软件补偿方法,说明了该方法的可行性。The mechanism of image motion of airborne digital camera is analyzed and a method of the backward-push forward motion compensation is proposed. The aviation simulation test-platform of airborne digital camera is build to a- chieve backward-push forward motion compensation by use the micro motor to control the compensation speeds and com- pensation of camera lens countermove. The compensated remain image motion is less than 1/3 pixel by applying image clarity to evaluate the compensation effect. The method of the backward-push forward motion compensation is contrasted to software compensation method and the results show that the method of the backward-push forward motion compensa- tion is superior to software compensation in the matter of the compensation precision. The method proposed is feasible.

关 键 词：航空数字相机 像移补偿 后推式 图像清晰度 软件补偿 

分 类 号：V245.6[航空宇航科学与技术—飞行器设计]