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Estimating texture independently of tone in simulated images of forest canopies

Estimating texture independently of tone in simulated images of forest canopies
Estimating texture independently of tone in simulated images of forest canopies
Tone and texture are two fundamental characteristics of remotely sensed images. Current research on the remote sensing of tropical forest biomass uses the tone (i.e., backscatter) of Synthetic Aperture Radar (SAR) images as this is related directly to biomass (albeit up to the backscatter/biomass asymptote). As a tropical forest canopy ages so its unevenness increases, progressing from smooth to rough. Therefore a measure of SAR texture that is independent of SAR tone has the potential of increasing the biomass maxima that can be estimated with SAR data. This experiment used simulated SAR images designed to reproduce forest canopies and different patterns of tone (or contrast) and texture (or clumpiness). Twenty six texture measures (derived from local statistics, the grey-level co-occurrence matrix (GLCM) and variograms) were calculated for these simulated images. Measures sensitive to texture (clumpiness) and/or tone (contrast) were identified using Analysis of Variance (ANOVA). Seven texture measures were recommended for the estimation of tropical forest biomass with SAR images.
sar, texture, simulated images, forest canopies
2209 -2216
INPE Press
Kuplich, T.M.
70046705-bb8a-400b-9517-b28e4cacb569
Curran, P.J.
3f5c1422-c154-4533-9c84-f2afb77df2de
Kuplich, T.M.
70046705-bb8a-400b-9517-b28e4cacb569
Curran, P.J.
3f5c1422-c154-4533-9c84-f2afb77df2de

Kuplich, T.M. and Curran, P.J. (2003) Estimating texture independently of tone in simulated images of forest canopies. In Papers in proceedings of XI Simpósio Brasileiro de Sensoriamento Remoto. INPE Press. 2209 -2216 .

Record type: Conference or Workshop Item (Paper)

Abstract

Tone and texture are two fundamental characteristics of remotely sensed images. Current research on the remote sensing of tropical forest biomass uses the tone (i.e., backscatter) of Synthetic Aperture Radar (SAR) images as this is related directly to biomass (albeit up to the backscatter/biomass asymptote). As a tropical forest canopy ages so its unevenness increases, progressing from smooth to rough. Therefore a measure of SAR texture that is independent of SAR tone has the potential of increasing the biomass maxima that can be estimated with SAR data. This experiment used simulated SAR images designed to reproduce forest canopies and different patterns of tone (or contrast) and texture (or clumpiness). Twenty six texture measures (derived from local statistics, the grey-level co-occurrence matrix (GLCM) and variograms) were calculated for these simulated images. Measures sensitive to texture (clumpiness) and/or tone (contrast) were identified using Analysis of Variance (ANOVA). Seven texture measures were recommended for the estimation of tropical forest biomass with SAR images.

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More information

Published date: 2003
Venue - Dates: XI Simpósio Brasileiro de Sensoriamento Remoto (SBSR), Belo Horizonte, Brazil, 2003-04-04 - 2003-04-09
Keywords: sar, texture, simulated images, forest canopies

Identifiers

Local EPrints ID: 14812
URI: http://eprints.soton.ac.uk/id/eprint/14812
PURE UUID: 76783ddf-0e6f-4a76-9ff0-3939956c90ca

Catalogue record

Date deposited: 02 Mar 2005
Last modified: 11 Dec 2021 13:55

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Contributors

Author: T.M. Kuplich
Author: P.J. Curran

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