Panoramic Aerial Camera Image Motion Measurement Using a Hybrid System

作     者：Gang Li Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China Graduate University of Chinese Academy of Sciences Beijing, China Ping Jia Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Changchun, China 

会议名称：《2010 3rd IEEE International Conference on Computer Science and Information Technology—ICCSIT 2010》

会议日期：2010年

学科分类：0810[工学-信息与通信工程] 08[工学] 081002[工学-信号与信息处理] 

关 键 词：image motion panoramic aerial camera joint transform correlation 

摘      要：Image motion compensation is significantly important for aerial camera photograph. To execute the compensation, we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging, while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB.