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- Title
URBAN VEGETATION MAPPING BASED ON THE HJ-1 NDVI RECONSTRCTION.
- Authors
Feng Li; Liu Han; Zhu Liujun; Huang Yinyou; Guo Song
- Abstract
HJ-1A/B NDVI (HJ NDVI) time-series data possess relatively high spatio-temporal resolution which is significant for the research on urban areas. However, its application is hindered by noise resulting from the restrictions of imaging quality and limits of the satellite platform. The NDVI noise reduction is necessary. Some noise-reduction techniques including the asymmetric Gaussian filter (AG), the double logistic filter (DL), the Savitzky-Golay (S-G) filter and the harmonic analysis (Hants) of NDVI time-series have been used to carry out the NDVI time series reconstruction, and based on the comparison results of different filter, S-G filter is the optimal in the application on urban areas. Finally,urban vegetation mapping is carried out based on the new HJ NDVI.
- Subjects
URBAN vegetation management; TIME series analysis; RANDOM noise theory
- Publication
International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 2016, Vol 41, Issue B8, p867
- ISSN
1682-1750
- Publication type
Article
- DOI
10.5194/isprsarchives-XLI-B8-867-2016