基于有效区域自动判断的多幅遥感图像镶嵌方法

针对目前遥感图像镶嵌中存在的自动化程度低、接缝线去除效果差等问题,从有效区域出发对现有镶嵌技术进行改进。采用自动追踪法得到图像的有效区域,在此基础上进行多幅遥感图像镶嵌处理:在几何拼接阶段,用有效区域代替原始矩形图像参与图像拼接;在拼接缝消除阶段,用有效区域确定两幅图像的拼接线,采取整体色调调整和重叠区加权两个步骤消除接缝线;在多幅图像镶嵌时,对两幅待镶嵌图像的有效区域求并集,即是结果图像的有效区域,参与下一次的镶嵌计算。通过两组多幅遥感图像的镶嵌实验表明,该技术流程可以实现全自动的多幅图像匀光,处理后图像整体色调一致,不存在明显接缝线。

Multi Remote Sensing Image Mosaic Based on Valid Area

Lack of automaticity and ineffective elimination of seam line exist in the present remote sensing image mosaic.Aimed at solving these problems,this paper has improved the existing mosaic technology by using valid area.The valid area is obtained using the automatic tracing method,based on which mosaic of multi remote sensing images is carried out.First,at the geometric splicing stage,primitive rectangle image participation is replaced by the valid area to carry out splicing.Second,the seam line is determined...