LIU Hui. Extraction of  the Floor Area Ratio in  the Central District  of  Fuzhou Cit y Based on an Improved Shadow Index Model[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1241-1247.
Citation: LIU Hui. Extraction of  the Floor Area Ratio in  the Central District  of  Fuzhou Cit y Based on an Improved Shadow Index Model[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1241-1247.

Extraction of  the Floor Area Ratio in  the Central District  of  Fuzhou Cit y Based on an Improved Shadow Index Model

  • This paper  presents  a new method that  combines PCA with HSI to differentiate  and extractconstruction shadows  from hi gh resolution  remote  sensing images  and then calculates  each block  floorarea  ratio by using re gression  anal ysis.The  proposed method reduces  the  complexit y and  instabilit y when extracting floor  area  ratios  using the  traditional  method.Taking downtown Fuzhou as  an example we extracted  the  construction shadow and floor  area  ratio by the new methodto  compare  andvalidate  it  against  the  traditional  method.The results  show that  the  shadow index  from the new method  is more reliable  and precise  than  results  obtained from the  traditional  approach
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