Paper Info
Title
Leaf Parameter Estimation Based On Shading Distribution In Leaf Scale Hyperspectral Images
Abstract
Low altitude hyperspectral observation systems provide us with leaf scale optical properties which are not affected by atmospheric absorption and spectral mixing due to the long distance between the sensors and objects. However, it is difficult to acquire Lambert coefficients as inherent leaf properties because of the shading distribution of leaf scale hyperspectral image In this paper, we propose an estimation method of Lambert coefficients by making good use of the shading distribution. The surface reflection of a set of leaves is modeled by a combination of dichromatic reflection under direct sunlight and reflection under the shadow of leaves. Lambert coefficient is derived from the first eigenvector of diffuse cluster. Experimental results show that chlorophyll indices based on the estimated Lambert coefficients are consistent with the growth stages of paddy fields.
Year
Venue
Keywords
2013
2013 5TH WORKSHOP ON HYPERSPECTRAL IMAGE AND SIGNAL PROCESSING: EVOLUTION IN REMOTE SENSING (WHISPERS)
Leaf scale hyperspectral imagery, Lambert coefficient, Dichromatic model, Gaussian mixture model
Field
DocType
ISSN
Shadow,Remote sensing,Altitude,Hyperspectral imaging,Atmospheric model,Estimation theory,Mathematics,Eigenvalues and eigenvectors,Mixture model,Shading
Conference
2158-6268
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Kuniaki Uto13210.40
Yukio Kosugi212726.67