Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data

Remote sensing has been applied to agriculture, making it possible to acquire a large amount of data far away from crops, providing information for decision making by producers that can impact production costs and crops quality. One way of getting the production information is through vegetation ind...

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Main Authors: Daniel Caio de Lima, Diego Saqui, Steve Ataky Tsham Mpinda, José Hiroki Saito
Format: Article
Language:English
Published: Taylor & Francis Group 2022-03-01
Series:Canadian Journal of Remote Sensing
Online Access:http://dx.doi.org/10.1080/07038992.2021.2016056
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author Daniel Caio de Lima
Diego Saqui
Steve Ataky Tsham Mpinda
José Hiroki Saito
author_facet Daniel Caio de Lima
Diego Saqui
Steve Ataky Tsham Mpinda
José Hiroki Saito
author_sort Daniel Caio de Lima
collection DOAJ
description Remote sensing has been applied to agriculture, making it possible to acquire a large amount of data far away from crops, providing information for decision making by producers that can impact production costs and crops quality. One way of getting the production information is through vegetation indices, arithmetic operations that use spectral bands, especially the Near Infrared (NIR). However, sensors that capture this spectral information are very expensive for small producers to afford it. In a previous article, a pixel-to-pixel image synthesis model to estimate NIR images from RGB data using hyperspectral endmembers (pure hyperspectral signatures) was described. In this work, an image-to-image synthesis model, known as Pix2Pix, is used for estimating NIR images from low-cost RGB camera images. Pix2Pix is a kind of Generative Adversarial Networks (GANs), composed by two neural networks, a generator (G) and a discriminator (D), that compete. G learns to create images from a random noise inputs and D learns to verify if these images are real or fake. The results showed that the presented method generated NIR images quite similar to real ones, reaching a value of 0.912 on M3SIM similarity metric, outperforming results obtained with the previous endmembers method (0.775 on M3SIM).
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spelling doaj.art-b3ceadc6544242f8a5ec6afa9ab6229b2023-10-12T13:36:24ZengTaylor & Francis GroupCanadian Journal of Remote Sensing1712-79712022-03-0148229931510.1080/07038992.2021.20160562016056Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB DataDaniel Caio de Lima0Diego Saqui1Steve Ataky Tsham Mpinda2José Hiroki Saito3Computer Department, UFSCar – Federal University of São CarlosIFSULDEMINAS, Federal Institute of Southern Minas GeraisUQAM, Université du Québec à MontréalComputer Department, UFSCar – Federal University of São CarlosRemote sensing has been applied to agriculture, making it possible to acquire a large amount of data far away from crops, providing information for decision making by producers that can impact production costs and crops quality. One way of getting the production information is through vegetation indices, arithmetic operations that use spectral bands, especially the Near Infrared (NIR). However, sensors that capture this spectral information are very expensive for small producers to afford it. In a previous article, a pixel-to-pixel image synthesis model to estimate NIR images from RGB data using hyperspectral endmembers (pure hyperspectral signatures) was described. In this work, an image-to-image synthesis model, known as Pix2Pix, is used for estimating NIR images from low-cost RGB camera images. Pix2Pix is a kind of Generative Adversarial Networks (GANs), composed by two neural networks, a generator (G) and a discriminator (D), that compete. G learns to create images from a random noise inputs and D learns to verify if these images are real or fake. The results showed that the presented method generated NIR images quite similar to real ones, reaching a value of 0.912 on M3SIM similarity metric, outperforming results obtained with the previous endmembers method (0.775 on M3SIM).http://dx.doi.org/10.1080/07038992.2021.2016056
spellingShingle Daniel Caio de Lima
Diego Saqui
Steve Ataky Tsham Mpinda
José Hiroki Saito
Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
Canadian Journal of Remote Sensing
title Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
title_full Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
title_fullStr Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
title_full_unstemmed Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
title_short Pix2Pix Network to Estimate Agricultural Near Infrared Images from RGB Data
title_sort pix2pix network to estimate agricultural near infrared images from rgb data
url http://dx.doi.org/10.1080/07038992.2021.2016056
work_keys_str_mv AT danielcaiodelima pix2pixnetworktoestimateagriculturalnearinfraredimagesfromrgbdata
AT diegosaqui pix2pixnetworktoestimateagriculturalnearinfraredimagesfromrgbdata
AT steveatakytshammpinda pix2pixnetworktoestimateagriculturalnearinfraredimagesfromrgbdata
AT josehirokisaito pix2pixnetworktoestimateagriculturalnearinfraredimagesfromrgbdata