期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2012
卷号：46
期号：2
页码：0747-0753
出版社：Journal of Theoretical and Applied
摘要：In order to improve the measurement accuracy of the linear CCD in the intersection of vertical target measurement system, the calibration model of linear CCD�s internal parameters is established and the various factors that affect the accuracy in the calibration process are analyzed. Making use of the linear CCD imaging optical principle, the optical center and the effective focal length are calibrated by using upright and inverted mirror state theory and N-style array streak model respectively. It can be proved through theoretical analysis and argument that the method can effectively reduce the impact of the factors as real object height to calibration accuracy and obtain the high precision calibration results which are satisfied the application indicators of linear CCD in the intersection of vertical target measurement system. It can be known from the experimental data that the optical canter calibration accuracy is less than 0.29 pixels and the focal length is less than 2.5�.
关键词：Linear CCD; Influence Factors; Calibration; Upright and Inverted Mirror State; N-style Array Steak Model
