关于梯度方向直方图的PPT PDF格式 很清楚的解释了HOG过程-PPT PDF format on the gradient direction histogram is a clear explanation of the HOG process

hog学习资料，有两篇ppt还有作者的博士论文和cvpr上的原文，对想了解此算法的人很有帮助-hog learning materials, the two ppt the author' s doctoral thesis and cvpr on the original, helpful people who want to understand this algorithm