LettuceMOT: A dataset of lettuce detection and tracking with re-identification of re-occurred plants for agricultural robots - Hu, Nan; Wang, Shuo; Wang, Xuechang; Cai, Yu; Su, Daobilige; Nyamsuren, Purevdorj; Qiao, Yongliang; Jiang, Yu; Hai, Bo; Wei, Hang (Frontiers in Plant Science, 2022)