为满足在线检测实时性的要求，提出了一种新的图像拼接方法，通过对图像RGB三通道分别计算，并运用序贯相似度找出了匹配图像的对应位置和偏移距离。实验结果表明，该方法检测速度快，精度高，可以满足在线检测的要求。

A new image mosaic method was put forward to meet the real time requirement of online detection. RGB channels of image were calculated separately and sequential similarity algorithm was applied to find the position of matched image and offset distance. Experiment result showed that the method has high detection speed and high precision, which can meet the requirement of online detection.