Muzhi Zhu Yuzhuo Tian Hao Chen 0041 Chunluan Zhou Qingpei Guo Yang Liu 0357 Ming Yang 0007 Chunhua Shen 3686-3696 2025 CVPR https://openaccess.thecvf.com/content/CVPR2025/html/Zhu_SegAgent_Exploring_Pixel_Understanding_Capabilities_in_MLLMs_by_Imitating_Human_CVPR_2025_paper.html https://doi.org/10.1109/CVPR52734.2025.00349 conf/cvpr/2025 db/conf/cvpr/cvpr2025.html#ZhuTCZGLYS25