In this paper, Hough transform and phase correlation was combined to solve the problem of image registration.
本文结合霍夫变换和相位相关技术来处理图像配准问题。
The HOUGH transform circle detection method involves complex computation, and needs to set some restrictions in advance, which have certain limitations for real-time traffic signs detection.
HOUGH变换圆检测法涉及复杂运算量，同时需要预先给定一些限制条件，对于交通标志的实时检测有一定局限性；
Compute the gradient to a road image, and then make HOUGH transform on it.
对一幅给定的道路图像，首先计算其梯度图像，然后利用HOUGH变换确定粗略道路区。
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