BOUHADJER, Mohamed El Amine; MAZARI, Sarah; CHIKR EL MEZOUAR, Miloud. Annotation-efficient weed mapping in sorghum fields using two-stage U-Net crop segmentation and HSV greenness analysis. Revista Brasileira de Engenharia de Biossistemas, Tupã, São Paulo, Brazil, v. 20, 2026. DOI: 10.18011/bioeng.2026.v20.1389. Disponível em: https://seer.cloud.prodb.com.br/BIOENG/article/view/1389. Acesso em: 28 jun. 2026.