应用于校正扩展视场偏差的红外成像测量方法

介绍了一种可扩展视场红外光学系统的工作原理，针对系统初始化后由于楔形镜装配误差引起的视场偏差对成像的影响，设计了一种校正该光学系统视场偏差的红外成像测量方法。通过计算机视觉技术在目标运动轨迹测量中的应用，把该技术与红外成像系统进行结合；用红外成像系统对运动目标成像，将目标的运动轨迹视为序列离散点，利用计算机视觉技术对这些离散点进行轨迹检测，并采集这些目标连续运动过程中的离散点图像。后期通过对采集的目标运动轨迹原始图像进行像图像处理，运用编程仿真构造目标的实际运动轨迹，最终完成了可扩展视场红外光学系统视场偏差的校正。结果表明，基于计算机视觉技术的红外成像测量方法能够很好地实现运动目标的轨迹测量。

An infrared imaging measuring method applied to check deviation of extended field view

The working principle of an extended infrared optical system was introduced in this paper. Because the imaging is usually affected by the deviation of view field due to the assembly error of wedge lens after initialization of system, a new infrared imaging optical measuring method was put forward in order to check the deviation of view field in optical system. The method integrated infrared imaging system and the computer vision technology that was applied in measuring the trajectory of motion target. The infrared imaging system was used to image the motion targets. Then the trajectories of motion target were regarded as the sequence of discrete points. The computer vision technology was used to detect the trajectories of the points and collect the image of discrete points in the continuous motion of those targets. Later, the deviation of view field of extended infrared optical system was revised by image processing of the original image of the trajectory of motion target and simulation of actual trajectory of motion target using programming. The results show that the infrared imaging measuring system which is based on computer vision technology can efficiently complete the measuring of the trajectory of motion target.