TY - JOUR A1 - Rivera, R. A. B. A1 - Idago, E. N. B. A1 - Blanco, A. C. A1 - Vergara, K. A. P. T1 - SEMI-AUTOMATED DELINEATION OF INFORMAL SETTLEMENT STRUCTURES FROM DRONE RGB IMAGERY USING OBJECT-BASED IMAGE ANALYSIS JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLVI-4/W6-2021 SP - 249 EP - 256 Y1 - 2021/11/18 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLVI-4-W6-2021/249/2021/ L1 - https://isprs-archives.copernicus.org/articles/XLVI-4-W6-2021/249/2021/isprs-archives-XLVI-4-W6-2021-249-2021.pdf DO - 10.5194/isprs-archives-XLVI-4-W6-2021-249-2021 ER -