Targeted Attack for Deep Hashing based Retrieval

Understand

The deep hashing based retrieval method is widely adopted in large-scale image and video retrieval.

• However, there is little investigation on its security.
• In this paper, we propose a novel method, dubbed deep hashing targeted attack (DHTA), to study the targeted attack on such retrieval.
• Specifically, we first formulate the targeted attack as a point-to-set optimization, which minimizes the average distance between the hash code of an adversarial example and those of a set of objects with the target label.