SHREC 2020 Track: Extended Monocular Image Based 3D Model Retrieval. - Wenhui Li 001; Dan Song 006; Anan Liu; Weizhi Nie; Ting Zhang; Xiaoqian Zhao; Mingsheng Ma; Yuqian Li; Heyu Zhou; Beibei Zhang; Shengjie Le; Dandan Wang; et al. (3DOR, 2020)