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在图像处理和计算机视觉中 ,H ough变换是一种应用非常广泛的图像边缘检测技术。针对传统 H ough变换算法所需的存储容量大、计算量大、速度慢、效率低 ,实时应用性差的问题 ,本论文运用了一种改进的 Hough变换方法 ,分两步来完成圆检测问题中的圆心定位和半径测定 ,并通过针对 PCB在线检测的具体应用情况加以改进并应用 ,进一步有效地减少存储容量 ,提高运行效率。实验证明算法满足 PCB在线检测的实时性
In image processing and computer vision, Hough transform is a very widely used image edge detection technology. Aiming at the problem of large storage capacity, large amount of calculation, slow speed, low efficiency and poor real-time applicability required by the traditional Hough transform algorithm, an improved Hough transform method is used to complete the circle detection problem in two steps Center location and radius determination, and through the PCB for online testing of specific applications to be improved and applied to further effectively reduce the storage capacity and improve operational efficiency. Experiments show that the algorithm meets the real-time PCB online testing