Proceedings :: International Society of Precision Agriculture

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Martin Carbajal Gamarra, F

Cruz, O.A

CARNEIRO FILHO, M.F

Maes, W

Mundada, K

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Authors

Andrade, M

da Silva Fonseca, J

Toledo, R

Martin Carbajal Gamarra, F

Maes, W

Rodrigues , L

Tommaselli, A.M

Pereira da Silva, R.P

Carreira, V

Wagner, N.K

Teixeira, C

Fontena, V

Junior, C.S

Cruz, O.A

Morgan Pereira, P.H

Lazzarini, L.V

Hurtado, S.M

Gonçalves, I.D

CARNEIRO FILHO, M.F

, A

Cândido, G.P

Topics

Remote and Proximal Sensing of Soils and Crops

UAV-Based Scouting, Imaging, and Targeted Applications

Agricultural Robotics, Automation, and Mechanization

Type

Poster

Year

2026

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Filter results4 paper(s) found.
1. Estimation of Leaf Area in Hydroponic Microgreenhouses by Digital Image Processing and Color-Based Segmentation Monitoring plant development is a fundamental pillar of precision agriculture, as leaf area is a primary indicator of photosynthetic capacity, transpiration rates, and overall biomass accumulation. In controlled environments such as hydroponic micro-greenhouses, real-time growth monitoring enables timely adjustments to nutrient film technique (NFT) parameters. However, conventional leaf area measurement methods often rely on invasive sampling or expensive, high-maintenance optical equipment, limiting... M. Andrade, J. Da Silva Fonseca, R. Toledo, F. Martin Carbajal Gamarra Download paper
2. Sun-view Geometry Causes Hotspot Effect in UAV Imagery During Summer in Tropical Regions High-resolution imagery acquired by Unmanned Aerial Vehicles (UAVs) is essential for remote sensing applications. However, the high solar elevation around noon during summer in tropical regions produces a hotspot effect when the camera is mapping at nadir. The sun-view alignment generates a bright spot in each image acquired during the flight, which significantly changes the digital number and, consequently, the estimated surface reflectance. The objective of this research was to analyze the presence... W. Maes, L. Rodrigues , A.M. Tommaselli, R.P. Silva, V. Carreira
3. Software Protocol Converters as Enablers for Interoperability in Heterogeneous Multi-Robot Systems Advancements in agricultural robotics are driving a transition toward ecosystems composed of heterogeneous platforms from multiple manufacturers. In this context, robotic platforms from multiple vendors must coexist and collaborate to perform complex tasks, including autonomous monitoring and precision weeding. However, this evolution introduces a fundamental challenge: the lack of a standardized communication stack capable of supporting cross-platform integration. The widespread use of proprietary... N.K. Wagner, C. Teixeira, V. Fontena, C.S. Junior, O.A. Cruz, P.H. Morgan Pereira Download paper
4. NDVI Index and Its Correlation with Biennial Coffee Yield Precision agriculture (PA) has consolidated itself as an important tool in agricultural management, allowing greater productive efficiency, cost reduction, and environmental sustainability. Among PA tools, the use of vegetation indices stands out, as it allows inferences about crop biomass both spatially and temporally. In this context, this study aimed to evaluate the relationship between the normalized difference vegetation index (NDVI) and the yield of Arabica coffee (Coffea arabica... L.V. Lazzarini, S.M. Hurtado, I.D. Gonçalves, M.F. Carneiro Filho, A. , G.P. Cândido Download paper

Filter results4 paper(s) found.

1. Estimation of Leaf Area in Hydroponic Microgreenhouses by Digital Image Processing and Color-Based Segmentation

Monitoring plant development is a fundamental pillar of precision agriculture, as leaf area is a primary indicator of photosynthetic capacity, transpiration rates, and overall biomass accumulation. In controlled environments such as hydroponic micro-greenhouses, real-time growth monitoring enables timely adjustments to nutrient film technique (NFT) parameters. However, conventional leaf area measurement methods often rely on invasive sampling or expensive, high-maintenance optical equipment, limiting... M. Andrade, J. Da Silva Fonseca, R. Toledo, F. Martin Carbajal Gamarra

Download paper

2. Sun-view Geometry Causes Hotspot Effect in UAV Imagery During Summer in Tropical Regions

High-resolution imagery acquired by Unmanned Aerial Vehicles (UAVs) is essential for remote sensing applications. However, the high solar elevation around noon during summer in tropical regions produces a hotspot effect when the camera is mapping at nadir. The sun-view alignment generates a bright spot in each image acquired during the flight, which significantly changes the digital number and, consequently, the estimated surface reflectance. The objective of this research was to analyze the presence... W. Maes, L. Rodrigues , A.M. Tommaselli, R.P. Silva, V. Carreira

3. Software Protocol Converters as Enablers for Interoperability in Heterogeneous Multi-Robot Systems

Advancements in agricultural robotics are driving a transition toward ecosystems composed of heterogeneous platforms from multiple manufacturers. In this context, robotic platforms from multiple vendors must coexist and collaborate to perform complex tasks, including autonomous monitoring and precision weeding. However, this evolution introduces a fundamental challenge: the lack of a standardized communication stack capable of supporting cross-platform integration. The widespread use of proprietary... N.K. Wagner, C. Teixeira, V. Fontena, C.S. Junior, O.A. Cruz, P.H. Morgan Pereira

Download paper

4. NDVI Index and Its Correlation with Biennial Coffee Yield

Precision agriculture (PA) has consolidated itself as an important tool in agricultural management, allowing greater productive efficiency, cost reduction, and environmental sustainability. Among PA tools, the use of vegetation indices stands out, as it allows inferences about crop biomass both spatially and temporally. In this context, this study aimed to evaluate the relationship between the normalized difference vegetation index (NDVI) and the yield of Arabica coffee (Coffea arabica... L.V. Lazzarini, S.M. Hurtado, I.D. Gonçalves, M.F. Carneiro Filho, A. , G.P. Cândido

Download paper