This is an implementation of default box generating algorithm of the paper[1], SSD: Single Shot Multibox Detector.
Full paper review in Korean can be seen here[2].
[1] W. Liu, et al, SSD: Single Shot Multibox Detector, 2016, ECCV
[2] 갈아먹는 머신러닝, https://yeomko.tistory.com/20