Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots

This study introduces two methods for crop identification and growth stage determination, focused primarily on enabling mobile robot navigation. These methods include a two-phase approach involving separate models for crop and growth stage identification and a one-phase method employing a single mod...

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Main Authors: Eloisa Cortinas, Luis Emmi, Pablo Gonzalez-de-Santos
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/13/12/2873
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author Eloisa Cortinas
Luis Emmi
Pablo Gonzalez-de-Santos
author_facet Eloisa Cortinas
Luis Emmi
Pablo Gonzalez-de-Santos
author_sort Eloisa Cortinas
collection DOAJ
description This study introduces two methods for crop identification and growth stage determination, focused primarily on enabling mobile robot navigation. These methods include a two-phase approach involving separate models for crop and growth stage identification and a one-phase method employing a single model capable of handling all crops and growth stages. The methods were validated with maize and sugar beet field images, demonstrating the effectiveness of both approaches. The one-phase approach proved to be advantageous for scenarios with a limited variety of crops, allowing, with a single model, to recognize both the type and growth state of the crop and showed an overall Mean Average Precision (mAP) of about 67.50%. Moreover, the two-phase method recognized the crop type first, achieving an overall mAP of about 74.2%, with maize detection performing exceptionally well at 77.6%. However, when it came to identifying the specific maize growth state, the mAP was only able to reach 61.3% due to some difficulties arising when accurately categorizing maize growth stages with six and eight leaves. On the other hand, the two-phase approach has been proven to be more flexible and scalable, making it a better choice for systems accommodating a wide range of crops.
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spelling doaj.art-f0314f965fca458dbc7c70f52f38e9e52023-12-22T13:46:06ZengMDPI AGAgronomy2073-43952023-11-011312287310.3390/agronomy13122873Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural RobotsEloisa Cortinas0Luis Emmi1Pablo Gonzalez-de-Santos2Centre for Automation and Robotics (UPM-CSIC), Arganda del Rey, 28500 Madrid, SpainCentre for Automation and Robotics (UPM-CSIC), Arganda del Rey, 28500 Madrid, SpainCentre for Automation and Robotics (UPM-CSIC), Arganda del Rey, 28500 Madrid, SpainThis study introduces two methods for crop identification and growth stage determination, focused primarily on enabling mobile robot navigation. These methods include a two-phase approach involving separate models for crop and growth stage identification and a one-phase method employing a single model capable of handling all crops and growth stages. The methods were validated with maize and sugar beet field images, demonstrating the effectiveness of both approaches. The one-phase approach proved to be advantageous for scenarios with a limited variety of crops, allowing, with a single model, to recognize both the type and growth state of the crop and showed an overall Mean Average Precision (mAP) of about 67.50%. Moreover, the two-phase method recognized the crop type first, achieving an overall mAP of about 74.2%, with maize detection performing exceptionally well at 77.6%. However, when it came to identifying the specific maize growth state, the mAP was only able to reach 61.3% due to some difficulties arising when accurately categorizing maize growth stages with six and eight leaves. On the other hand, the two-phase approach has been proven to be more flexible and scalable, making it a better choice for systems accommodating a wide range of crops.https://www.mdpi.com/2073-4395/13/12/2873object detectionprecision agricultureagricultural robotscrop identification
spellingShingle Eloisa Cortinas
Luis Emmi
Pablo Gonzalez-de-Santos
Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
Agronomy
object detection
precision agriculture
agricultural robots
crop identification
title Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
title_full Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
title_fullStr Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
title_full_unstemmed Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
title_short Crop Identification and Growth Stage Determination for Autonomous Navigation of Agricultural Robots
title_sort crop identification and growth stage determination for autonomous navigation of agricultural robots
topic object detection
precision agriculture
agricultural robots
crop identification
url https://www.mdpi.com/2073-4395/13/12/2873
work_keys_str_mv AT eloisacortinas cropidentificationandgrowthstagedeterminationforautonomousnavigationofagriculturalrobots
AT luisemmi cropidentificationandgrowthstagedeterminationforautonomousnavigationofagriculturalrobots
AT pablogonzalezdesantos cropidentificationandgrowthstagedeterminationforautonomousnavigationofagriculturalrobots