一种基于整体平差的图像拼接方法

Method of Image Join Based on Adjustment in One Cast

提出了一种基于整体平差的概格图像拼接方法，该方法把整幅图纸的４个角点作为拼接控制点，然后利用相邻扫描图像块重叠区中连接点的传递特性，通过量测与整体平差，算得各扫描图像块相对于图幅坐标系的几何变换参数，最后经重采样实现图像的自动拼接．所列试验表明，新提出的拼接方法速度快、精度高．

A method of image join which is based on adjustment in one cast is proposed. Firstly, the method puts the four corners of map as join control points, and takes the points in the overlay area of scanned image blocks as pass points. Then, through adjustment in one cast and re-sampling, the image join is finished automaticly. The experiment shows that new join method is better than old one in speed and accuracy.