文献类型： 会议论文
第一作者： Yingying Dong
作者： Yingying Dong 1 ; Jinkai Zhang 1 ; Zhijie Wang 1 ; Karl Staenz 1 ; Craig Coburn 1 ; Wei Xu 1 ; Xiaodong Yang 2 ; Jihua Wang 3 ;
作者机构： 1.Alberta Terrestrial Imaging Center, University of Lethbridge
2.Beijing Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences
3.Beijing Research Center for Agricultural Standards and Testing, Beijing Academy of Agriculture and Forestry Sciences
关键词： Parameter mapping;PROSAIL model;Look-up table (LUT);Binary search
会议名称： IEEE International Geoscience and Remote Sensing Symposium
主办单位：
页码： 2078-2081
摘要： Estimation of canopy biophysical and biochemical parameters using remote sensing data is important for regional crop-growth condition monitoring and yield assessment. The inversion of the radiative transfer model PROSAIL based on the look-up table (LUT) approach is widely used for this purpose, taking remotely sensed reflectance as input. For the LUT-based parameter mapping, the main part is searching for the optimal solution from a large LUT. Due to the computational complexity of the sorting algorithm and size of the LUT for the solution search, a substantial amount of time is normally needed for estimation. In order to speed up the mapping of parameters using remote sensing observations, a faster method is developed for searching the LUT by introducing a binary search algorithm. The results of the experiments based on SPOT-5 imagery show that the proposed method can increase the mapping speed by about 70 times compared to the sorting algorithm.
分类号： TP7-53
- 相关文献
[1]Newly Combined Spectral Indices to Improve Estimation of Total Leaf Chlorophyll Content in Cotton. Jin, Xiuliang,Feng, Haikuan,Xu, Xingang,Yang, Guijun,Li, Zhenhai. 2014
作者其他论文 更多>>
-
Estimation of leaf C/N in crops based on hyperspectral measurements and machine learning methods
作者：Xingang Xu;Hao Yang;Wenbiao Wu;Guijun Yang;Xiaoyu Song;Xiaodong Yang;Yang Meng;Haikuan Feng
关键词：Reflectivity;Maximum likelihood estimation;Pipelines;Crops;Machine learning;Nutrients;Nitrogen
-
Study the Spatial-Temporal Variation of Wheat Growth Under Different Site-Specific Nitrogen Fertilization Approaches
作者：Bei Cui;Wenjiang Huang;Xiaoyu Song;Huichun Ye;Yingying Dong
关键词：Site-specific N fertilization;Winter wheat;Spatial-temporal variation
-
A novel electronic nose for meat quality testing
作者：Wenshen;Sizhe Zhang;Ping Han;Jihua Wang;Jie Ma
关键词：Electronic nose;Meat;Freshness evaluation;Quality classification
-
COMPARING BROAD-BAND AND RED EDGE-BASED SPECTRAL VEGETATION INDICES TO ESTIMATE NITROGEN CONCENTRATION OF CROPS USING CASI DATA
作者：Yanjie Wang;Qinhong Liao;Guijun Yang;Haikuan Feng;Xiaodong Yang;Jibo Yue
关键词：LNC;SVIs;NDVI;broad-band;red edge-based;CASI
-
SPATIAL VARIABILITY OF WINTER WHEAT GROWTH BASED ON THE INDIVIDUAL INDEX AND THE POPULATION INDEX
作者：Bei Cui;Xiaoyu Song;Wude Yang;Meichen Feng;Jihua Wang
关键词：Winter wheat;Growth;Remote sensing;Spatial variability
-
Comparative analysis of three regression methods for the winter wheat biomass estimation using hyperspectral measurements
作者：Xingang Xu;Yuanyuan Fu;Guijun Yang;Haikuan Feng;Xiaoyu Song;Jihua Wang
关键词：Winter wheat biomass;Hyperspectral;Partial least squares regression;Principal component regression;Stepwise multiple linear regression;Spectral transformation
-
Detection of clusters and outlying nodes in spatial networks
作者：Jiaogen Zhou;Chunjiang Zhao;Jihua Wang;La Qi;Wenjiang Huang
关键词：Spatial network;network Clustering;Outlying node detection
