Dynamic gradient reactivation for backward compatible person re-identification

Xiao Pan, Hao Luo, Weihua Chen, Fan Wang, Hao Li, Wei Jiang, Jianming Zhang, Jianyang Gu, Peike Li

Abstract: Highlights•The first work to study the backward compatible training for person Re-ID.•Direct optimize the features’ ranking metric to target the best-ranking positions.•Our method surpasses previous methods under both in-domain and cross-domain settings..