Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images

© 2019 IEEE. Notable works on the use of the triangular greenness index (TGI) to estimate vegetation fraction of croplands or chlorophyll content of crops, proved that relevant metrics on crop health monitoring can be derived from images at the visible spectrum. However, the performance of the TGI-b...

Full description

Saved in:
Bibliographic Details
Main Authors: De Ocampo, Anton Louise P., Bandala, Argel A., Dadios, Elmer P.
Format: text
Published: Animo Repository 2019
Online Access:https://animorepository.dlsu.edu.ph/faculty_research/672
https://animorepository.dlsu.edu.ph/context/faculty_research/article/1671/type/native/viewcontent
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: De La Salle University
id oai:animorepository.dlsu.edu.ph:faculty_research-1671
record_format eprints
spelling oai:animorepository.dlsu.edu.ph:faculty_research-16712023-01-10T02:37:24Z Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images De Ocampo, Anton Louise P. Bandala, Argel A. Dadios, Elmer P. © 2019 IEEE. Notable works on the use of the triangular greenness index (TGI) to estimate vegetation fraction of croplands or chlorophyll content of crops, proved that relevant metrics on crop health monitoring can be derived from images at the visible spectrum. However, the performance of the TGI-based metric in crop health monitoring greatly depends on knowledge of wavelength sensitivities of the CMOS sensors used to obtain the RGB images of the crop. This becomes a problem when generic digital cameras are used and the specifications of the CMOS sensors are not available. The proposed method in this study compensates for the lack of information on the peak wavelength sensitivities of generic CMOS sensors by performing a parametric sweep on the proportions of 670nm-, 550nm-, and 480nm-peak wavelengths to derive a TGI equation normalized by the green signal. This allows the use of any available digital cameras even without prior knowledge of the wavelength sensitivity at the visible spectrum of the installed CMOS sensors. 2019-11-01T07:00:00Z text text/html https://animorepository.dlsu.edu.ph/faculty_research/672 https://animorepository.dlsu.edu.ph/context/faculty_research/article/1671/type/native/viewcontent Faculty Research Work Animo Repository
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
description © 2019 IEEE. Notable works on the use of the triangular greenness index (TGI) to estimate vegetation fraction of croplands or chlorophyll content of crops, proved that relevant metrics on crop health monitoring can be derived from images at the visible spectrum. However, the performance of the TGI-based metric in crop health monitoring greatly depends on knowledge of wavelength sensitivities of the CMOS sensors used to obtain the RGB images of the crop. This becomes a problem when generic digital cameras are used and the specifications of the CMOS sensors are not available. The proposed method in this study compensates for the lack of information on the peak wavelength sensitivities of generic CMOS sensors by performing a parametric sweep on the proportions of 670nm-, 550nm-, and 480nm-peak wavelengths to derive a TGI equation normalized by the green signal. This allows the use of any available digital cameras even without prior knowledge of the wavelength sensitivity at the visible spectrum of the installed CMOS sensors.
format text
author De Ocampo, Anton Louise P.
Bandala, Argel A.
Dadios, Elmer P.
spellingShingle De Ocampo, Anton Louise P.
Bandala, Argel A.
Dadios, Elmer P.
Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
author_facet De Ocampo, Anton Louise P.
Bandala, Argel A.
Dadios, Elmer P.
author_sort De Ocampo, Anton Louise P.
title Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
title_short Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
title_full Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
title_fullStr Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
title_full_unstemmed Estimation of triangular greenness index for unknown PeakWavelength Sensitivity of CMOS-acquired crop images
title_sort estimation of triangular greenness index for unknown peakwavelength sensitivity of cmos-acquired crop images
publisher Animo Repository
publishDate 2019
url https://animorepository.dlsu.edu.ph/faculty_research/672
https://animorepository.dlsu.edu.ph/context/faculty_research/article/1671/type/native/viewcontent
_version_ 1754713733357109248