组合宽角相机影像色彩一致性处理研究

Image color consistency processing of the multi-format combined wide angle camera

无人机的飞速发展使其在目标侦察、环境仿真等领域得到广泛应用,而其搭载的多面阵组合相机作业模式较单相机有一定的优越性。本文在论述通用影像色彩一致性处理技术的基础上,以一种多面阵组合宽角五相机为例,提出了针对无人机搭载的组合宽角相机影像匀光匀色处理方案。实验结果表明,利用MASK匀光法可消除单张像片内部色彩差异,再通过基于Wallis滤波器方法可进一步消除子影像间的色调差异,从而保障最终虚拟影像的色彩效果与表现质量。

The rapid development of UAVs has promoted their wide application in target reconnaissance,environment simulation and other fields.The operation mode of the onboard multi-format combined camera has certain advantages over that of a single camera.Based on a study on the general technology for image color consistency processing,a multi-format combined wide-angle five-head camera is set as an example in this paper,and an image uniformity processing scheme of wide-angle camera carried by UAV is proposed and proved by experiment.The results show that the MASK homogenization method can eliminate the color difference in single image,and the hue difference between the sub-images can be eliminated by using the Wallis filter method,which will guarantee the color effect and presentation quality of virtual images.