Fig. 5From: Fast building damage mapping using a single post-earthquake PolSAR image: a case study of the 2010 Yushu earthquakeReference map of the building earthquake damage information at the city block scale in the Yushu urban region. If more than half of buildings collapsed after the earthquake, the city block was considered as serious damage. The city block with less than one-third buildings collapsing was considered as slight damage. The city block with the damage level between slight damage and serious damage was considered as moderate damageBack to article page