面阵CCD航空相机的自动对焦技术研究  

Study on Automatic Focusing Technique Based on Planar Array CCD for Aerial Camera

作　　者：李开端[1] 赵育良[1] 李英杰[1] 张青臣[1] 

机构地区：[1]青岛海军航空工程学院分院,山东青岛266041

出　　处：《光电工程》2002年第5期22-24,29,共4页Opto-Electronic Engineering

摘　　要：航空相机在成像过程中,摄影距离随飞行平台高度发生改变,为满足摄影分辨力的要求, 镜头位置要相应调整。利用面阵CCD图像经小波变换后获取的图像边缘特征和CCD交汇测距原理,实现目标距离自动测量和相机自动对焦。During the imaging process of an aerial camera, the photographic range will vary with the height of flight platform. In order to meet the demands in photographic resolution, the position of the lens will be correspondingly adjusted automatic measurement of the object distance and camera automatic focusing are carried out by means of the image edge characteristics achieved by planar array CCD through wavelet transform and CCD intersection range finding principle.

关 键 词：航空相机 面阵CCD 自动对焦 交汇测量 小波变换 

分 类 号：V245.6[航空宇航科学与技术—飞行器设计]