图像桶形失真矫正。在飞行器中的视频拍摄中，寻线飞行时，需要图像的桶形矫正，虽然说不进行，影响不大，但在精确度要求高的情况下，这是有必要的-Image barrel distortion correction. In an aircraft video shooting, hunt flying, we need to correct the image of the barrel, though not carried little impact, but in the case of high accuracy requirements, it is necessary