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| 图像显示系统几何畸变的测量及校正 | |
| 引用本文： | 关英姿,康为民,韩四宁.图像显示系统几何畸变的测量及校正[J].光学技术,2004,30(4):423-424. |
| 作者姓名： | 关英姿 康为民 韩四宁 |
| 作者单位： | 1. 哈尔滨工业大学,航天工程与力学系,黑龙江,哈尔滨,150001 2. 哈尔滨工业大学,自动化测试与控制系,黑龙江,哈尔滨,150001 3. 空军驻江西地区代表室,江西,南昌 330000 |
| 摘 要： | 为了保证图像显示系统能够产生120°的大视场,在系统中使用了超广角耦合物镜,这样就不可避免地存在几何畸变。提出了一种基于点物成像原理,并采用数码相机和精密单轴转台进行畸变测量的方法,介绍了测量原理和测量过程,根据测量后得到的畸变规律,采用数字图像处理的方法对几何畸变进行了校正。校正后,图像显示系统的畸变小于0.4%,完全能够满足导弹景象匹配系统定位误差及定位概率的检测要求。 |
| 关 键 词： | 几何畸变 畸变校正 图像显示系统 |
| 文章编号： | 1002-1582(2004)04-0423-02 |
| 修稿时间： | 2003年10月20 |
Detection and correction of geometric distortion in image displaying system |
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| GUAN Ying-zi,KANG Wei-min,HAN Si-ning.Detection and correction of geometric distortion in image displaying system[J].Optical Technique,2004,30(4):423-424. | |
| Authors: | GUAN Ying-zi KANG Wei-min HAN Si-ning |
| Institution: | GUAN Ying-zi~1,KANG Wei-min~2,HAN Si-ning~3 |
| Abstract: | The geometric distortion is caused by using the ultra wide-angle objective lens which can ensure the image display system to generate 120° large field of view. A distortion measuring method based on point object imaging theory and using digital camera and precise single-axis turntable is proposed. The principle and process of measuring are introduced. Based on the measured distortion rule, the geometric distortion is corrected by digital image process method .After the correction, the distortion of image display system is less than 0.4%. This result can meet the needs of the positioning and probability of the missile's scene matching guidance system. |
| Keywords: | geometric distortion distortion correction image displaying system |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |