一种解决水域航摄影像的拼接方法

A Mosaic Method of Photography Images in Water Area

摄影测量技术是直接获取地表信息最重要的手段,影像拼接是把多幅小范围影像合并为大视场影像图的过程。但目前影像拼接图的生产多依靠特征点匹配的方式,对影像的纹理和重叠有一定要求,致使水域区的影像因纹理匮乏,常出现无法拼接的现象。针对以上问题,提出一种依靠影像位姿参数的影像快速拼接技术,摆脱对特征点的依赖,重点对影像的几何校正、相邻影像配准与多幅影像拼接等重要环节进行分析研究。实验结果表明,本文方法有效保障了水域影像的顺利拼接,并且省去了特征点匹配的复杂工序,拼接效率得到了极大提升。

At present,photogrammetry technology is the most important means to obtain the surface information directly.Image mosaic is the process of merging multiple small-scale images into large field images.However,at present,the production of image mosaics mostly relies on the matching of feature points,which has certain requirements for the texture and overlap of images,resulting in the phenomenon that images in water area can not be mosaiced due to the lack of texture.In order to solve the above problems,this paper proposed a fast image mosaic technology which depended on the image pose parameters to get rid of the dependence on the feature points,and focused on the analysis and research of image geometric correction,adjacent image registration and multiple image mosaic.The experimental results showed that this method effectively ensured the smooth mosaic of water images,and eliminated the complex process of feature point matching,and the efficiency of mosaic was greatly improved.