由于光学镜头的生产工艺等原因，数码相机拍摄图像常常会出现非线性的几何畸变。针对这一常见问题，采用最小二乘拟合、双线性性插值的方法对拍摄图像进行校正。实验结果表明，该方法能够在保证无颜色失真的条件下获得较为理想的校正结果。 -Due to optical lens production process, digital camera images are often non-linear geometric distortion. In response to this common pro

插值法图像变换（球型膨胀，扭曲，透镜，对称极坐标）-Interpolation image transform (ball type expansion, distortion, lens, polar symmetry)

双高斯照相物镜光学设计，入瞳直径25mm，视场角20，优化弥散斑小于12微米，畸变小于3%(Double guass lens optical design, pupil diameter 25mm, field angle 20, optimized dispersion spot less than 12 microns, distortion less than 3%)