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针对现有的提高线阵电荷耦合器件(CCD)成像系统的图像空间分辨率的方法存在的不足,提出了一种新的采样模式,并设计了一种高分辨率成像系统。该系统利用两个相同的线阵CCD相机进行特定的空间排列,即使得相机1和相机2的CCD阵列都倾斜θ来进行扫描取像,并利用图像校正和像素插值等图像重建方法,得到高分辨率的图像。实验结果表明,倾斜角取60°的情况下,相对于单个线阵相机在θ=0°的正常采样模式下得到的采样图像,图像的空间分辨率提高了1倍,且保持了成像的视野不变。本系统工程上实现简单,十分经济且便于维护,仅利用现有的成像装置即可获取更高分辨率的图像。
Aiming at the shortcomings of existing methods to improve the image spatial resolution of linear CCD (Charge Coupled Device) imaging system, a new sampling mode is proposed and a high resolution imaging system is designed. The system utilizes two identical linear CCD cameras to perform a specific spatial arrangement such that the CCD array of both the camera 1 and the camera 2 are tilted by θ for scanning and imaging and image reconstruction and pixel interpolation are used to obtain high spatial resolution Resolution image. The experimental results show that the spatial resolution of the image is doubled when the tilt angle is 60 ° compared with that of the single line camera in normal sampling mode with θ = 0 °, and the imaging field of view constant. The system engineering to achieve simple, very economical and easy to maintain, only the use of existing imaging devices to obtain higher resolution images.