TY - JOUR A1 - Liu, X. A1 - Zhang, Y. A1 - Li, Q. T1 - AUTOMATIC PEDESTRIAN CROSSING DETECTION AND IMPAIRMENT ANALYSIS BASED ON MOBILE MAPPING SYSTEM JO - ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Annals VL - IV-2/W4 SP - 251 EP - 258 Y1 - 2017/09/13 PB - Copernicus Publications SN - 2194-9050 UR - https://isprs-annals.copernicus.org/articles/IV-2-W4/251/2017/ L1 - https://isprs-annals.copernicus.org/articles/IV-2-W4/251/2017/isprs-annals-IV-2-W4-251-2017.pdf DO - 10.5194/isprs-annals-IV-2-W4-251-2017 ER -