“…Witnessed by the rapid development of computer graphics, information science and other related technologies these years, three‐dimensional shape retrieval has gradually become a research focus of computer vision. For instance, it can be applied in fields such as biometric identification [1–3], image analysis [4, 5], e‐commerce [6, 7], virtual reality [8–10] etc. Biological individual identification, especially in the field of forensic science, is a research with important application value [11, 12].…”