Title
Improving Leaf Area Index Retrieval Over Heterogeneous Surface by Integrating Textural and Contextual Information: A Case Study in the Heihe River Basin
Abstract
Spatial heterogeneity of land surface induces scaling bias in leaf area index (LAI) products. In optical remote sensing of vegetation, spatial heterogeneity arises both by textural and contextual effects. A case study made in the middle reach of the Heihe River Basin shows that the scaling bias in LAI retrieval is large up to 26% if the spatial heterogeneity within low-resolution pixels is ignored. To reduce the influence of spatial heterogeneity on LA! products, a correcting method combining both textural and contextual information is adopted, and the scaling bias may decrease to less than 2% in producing resolution-invariant LAI products.
Year
DOI
Venue
2015
10.1109/LGRS.2014.2341925
IEEE Geosci. Remote Sensing Lett.
Keywords
Field
DocType
geophysical techniques,remote sensing,textural information,vegetation optical remote sensing,land surface,leaf area index retrieval,surface texture,contextual information,spatial resolution,surface structures,heihe river basin,heterogeneous surface,low-resolution pixels,resolution-invariant lai products,textural effects,vegetation,contextual effects
Leaf area index,Vegetation,Contextual information,Drainage basin,Remote sensing,Pixel,Spatial heterogeneity,Image resolution,Scaling,Mathematics
Journal
Volume
Issue
ISSN
12
2
1545-598X
Citations 
PageRank 
References 
11
0.74
3
Authors
8
Name
Order
Citations
PageRank
Gaofei Yin16113.33
Jing Li2175.26
Qinhuo Liu328085.97
Longhui Li4283.21
Yelu Zeng56811.63
Baodong Xu66610.21
Le Yang727333.24
Jing Zhao8579.49