TPOT: Topology Preserving Optimal Transport in Retinal Fundus Image Enhancement - Dong, Xuanzhao; Zhu, Wenhui; Li, Xin; Sun, Guoxin; Su, Yi; Dumitrascu, Oana M.; Wang, Yalin (2025 IEEE 22nd International Symposium on Biomedical Imaging (ISBI), Biomedical Imaging (ISBI), 2025 IEEE 22nd International Symposium on, 2025)