【作者】 任焕焕； 阮萍； 薛彬； 乔卫东； 何建伟； 梁士通； 王洪伟；

【Author】 REN Huan-huan 1,2,RUAN Ping 1,XUE Bin 1,QIAO Wei-dong 1,HE Jian-wei 1,2,LIANG Shi-tong 1,2,WANG Hong-wei 1,2 (1 Space Optics Laboratory.Xi’an Institute of Optics and Precision Mechanics.CAS,Shaanxi Xi’an 710119) (2 Graduate School of CAS,Beijing 10039)

【机构】 中国科学院西安光学精密机械研究所空间光学研究室； 中国科学院研究生院；

【摘要】 为了有效降低相对定标程序的复杂性,详细介绍了某TDI-CCD空间立体相机的相对定标及其最优化的原理。根据TDI-CCD的响应特性,从级数、增益、曝光时间三个方面,利用两种不同的方法,对大量数据进行了优化分析。得出两组最优相对定标矩阵,并分别进行了验证。结果表明用最优矩阵去处理所有图像数据,在系统误差允许的范围内均为最优。最后对最优化结果进行了对比分析,最优矩阵利用两种方法处理数据其最小偏差相差4-5倍。从而在实际应用中更有效地降低了相对定标程序的复杂性,使后期图像处理更加精确。更多还原

【Abstract】 In order to decrease the complexity of the relative calibration process,the principle of the relative calibration and the optimization of TDI-CCD special stereo camera are introduced in details.In three aspects of progression,plus and time of exposure,according to the responding characteristics of TDI-CCD,two methods are utilized to optimize a number of data.The results are two different matrixes.Then they are validated to be the best in the tolerance of the system after being used to deal with any image data.Finally the results are compared and analyzed that the best matrix makes the minimal warp decrease 4-5 times in a different method.Through the work of the paper,the complexity of the relative calibration process is decreased effectively in the practical application,and the image process in the evening of the work is becoming more accurate.更多还原