AUTHOR=Li Yadong , Guo Ruinan , Li Rujia , Ji Rongbiao , Wu Mengyao , Chen Dinghao , Han Cong , Han Ruilin , Liu Yongxiu , Ruan Yuwen , Yang Jianping TITLE=An improved U-net and attention mechanism-based model for sugar beet and weed segmentation JOURNAL=Frontiers in Plant Science VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2024.1449514 DOI=10.3389/fpls.2024.1449514 ISSN=1664-462X