宽视场光学设备畸变修正方法

Distortion Correction Method for Optical Equipment with Wide Field of View

光学畸变是宽视场光学设备测角精度的主要影响因素,通过深入分析研究现有光学畸变修正方法,提出了基于视场分区标定建立光学畸变多修正多模型的新方法。通过实验表明,该方法可以有效的提高宽视场光学设备的测量精度,特别适用于成像探测器像元尺寸较大的宽视场光学设备的畸变高精度修正,为连发齐射多目标、快速目标、大动态目标等弹道高精度测量提供了技术支撑。

Optical distortion is an important factor which can degrade angle measurement accuracy of optical measuring equipment with wide field of view. In this work,a new multiple-model correction method based on partition calibration was proposed. A corresponding experiment was performed,and its results validate that this method can effectively raise angle measurement accuracy of equipment. It is applicable to optical equipment with large-sized detector pixel,and it would provide practical support for ballistic measurement of automatic salvo multi-targets,high speed targets and large dynamic targets with high accuracy.