鱼眼视频图像畸变的实时校正方法

采用鱼眼图像的球面投影模型,提出一种基于鱼眼透镜球面投影的实时校正方法.该方法将鱼眼图像映射在5个图像平面上,解决了鱼眼视频图像畸变严重,观测视觉体验效果较差的问题;根据图像在计算机中的内存布局,对校正算法中的空间映射计算和内存存储空间进行了优化,提高了算法的执行效率,减少了算法的内存消耗.实验结果表明,该方法能显著改善鱼眼图像的显示效果,对单帧图像的处理时间仅为18.37ms,能满足鱼眼视频图像实时校正的需要.

Real Time Correction Method for Fisheye Video Images Distortion

Using spherical projection model of fisheye image, we proposed a real time correction method based on spherical projection. The method made the fisheye image map in 5 image plane, so as to solve the problem of serious distortion and poor visual effects for fisheye video. According to the layout of 2D image data allocations in memory, the space mapping calculation and memory management were optimized in the correction algorithm. The efficiency of the algorithm was improved and the memory consumption ofthe algorithm was reduced. The experimental results show that the method can significantly improve the visual effects of fisheye images, and the running time of single frame image is only 18.37 ms, which cansatisfy the need of real time fisheye video image correction.