接缝线网络的自动生成及优化方法

Approach for Automatic Generation and Optimization of Seamline Network

提出一种接缝线网络的自动生成及优化方法,首先基于顾及重叠的面Voronoi图,生成全局的初始接缝线网络,然后利用重叠区的影像内容对接缝线网络进行优化。不仅可保证区域范围内多影像镶嵌处理的灵活性与效率,避免误差累积和中间结果的产生,使处理结果与影像顺序无关,而且优化后的接缝线网络可保证镶嵌质量。

The automatic generation and optimization of seamline network is a key problem for more remote sensing images mosaic.To solve the problem,a novel method is presented in this paper.The method includes a two-step operation：globally generating the initial seamline network based on the area Voronoi diagrams with overlap followed by refining the generated seamline network based on pixel values in overlaps.By doing so,it can ensure the flexibility and efficiency,avoid the middle results and error accumulation,and make the results have no relationship with the order of images.Further more,the refined seamline network also ensures the quality of mosaicking.Experiments are designed for the validation of the proposed algorithm and they indicate the approach is extremely useful when a seamless mosaic is required to cover a large geographic region.