I. Introduction
Camouflaged Object Detection [1] (COD) aims to identify and segment objects that are naturally hidden in their surrounding environment, which is difficult even for humans to distinguish the camouflaged objects without explicit targets. Therefore, the task of Ref-COD [2] is recently proposed to guide the detection process with additional text or images as references (e.g., class name or salient images belonging to the target class of camouflaged object), accomplishing more specified and applicable COD.