1.基于BOW的图像检索
https://blog.csdn.net/qq_42617827/article/details/90048221
2.SIFT算法的应用--目标识别之Bag-of-words模型
https://blog.csdn.net/v_JULY_v/article/details/6555899
3.论文：Beyond Bags of Features: Spatial Pyramid Matching for Recognizing Natural Scene Categories
参考：
https://blog.csdn.net/xiny520/article/details/38903419
原文：https://www.cnblogs.com/sybil-hxl/p/13336638.html