Spherical Hashing: Binary Code Embedding with Hyperspheres
https://sgvr.kaist.ac.kr/publication/spherical-hashing-binary-code-embedding-with-hyperspheres/
Jae-Pil Heo, Youngwoon Lee, Junfeng He, Shih-Fu Chang, and Sung-eui Yoon
IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), 2015