First, by matching maximum grads of two images, a search range for successive intensity correlation matching process could be remarkably shrunken which made the whole matching process more speedy.

• 实验表明,算法原理简单、拼接速度快,同时消除了对有重复纹理特征图像的伪拼接现象,对图像亮度差异具有很强的抗干扰能力,鲁棒性好。