Sergio Vélez

ORCID: 0000-0001-9004-2877
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About
Contact & Profiles
Research Areas
  • Remote Sensing in Agriculture
  • Remote Sensing and LiDAR Applications
  • Horticultural and Viticultural Research
  • Smart Agriculture and AI
  • Forest Insect Ecology and Management
  • Plant Pathogens and Fungal Diseases
  • Fermentation and Sensory Analysis
  • Plant Water Relations and Carbon Dynamics
  • 3D Surveying and Cultural Heritage
  • Wine Industry and Tourism
  • Robotics and Sensor-Based Localization
  • Spectroscopy and Chemometric Analyses
  • Soil erosion and sediment transport
  • Food Supply Chain Traceability
  • Land Use and Ecosystem Services
  • Microbial infections and disease research
  • UAV Applications and Optimization
  • Nuts composition and effects
  • Date Palm Research Studies
  • Robotic Path Planning Algorithms
  • Allergic Rhinitis and Sensitization
  • Medical Practices and Rehabilitation
  • Biomedical and Chemical Research
  • Contact Dermatitis and Allergies
  • Photovoltaic Systems and Sustainability

Fraunhofer Institute for Solar Energy Systems
2024-2025

Wageningen University & Research
2021-2025

Universidad de Burgos
2025

Instituto Tecnológico Agrario de Castilla y León
2019-2024

Seminario Permanente de Investigación Agraria
2012

Medizinische Hochschule Hannover
2010

Hôpital Robert-Debré
2005

Laboratoire Montpelliérain d’Economie Théorique et Appliquée
2005

Hannoversche Kinderheilanstalt
2004

Institut Alfred Fournier
2004

The fungus Botrytis cinerea causes severe diseases in many crops. In grapevines, it bunch rot (BBR), one of the most reported worldwide. It affects all herbaceous organs vine, especially ripe berries, causing significant reductions yield and wine quality. detection models traditionally focus on temporal analysis at a specific spatial location, ignoring study variability crop. Unmanned aerial vehicles (UAVs) equipped with multispectral cameras can provide high-resolution images that be...

10.1016/j.eja.2022.126691 article EN cc-by European Journal of Agronomy 2022-11-12

Grapevine phenotyping is the process of determining physical properties (e.g., size, shape, and number) grape bunches berries. information provides valuable characteristics to monitor sanitary status vine. Knowing number dimensions berries at an early stage development relevant winegrowers about yield be harvested. However, counting measuring usually done manually, which laborious time-consuming. Previous studies have attempted implement bunch detection on red in vineyards with leaf removal...

10.1016/j.compag.2023.108051 article EN cc-by Computers and Electronics in Agriculture 2023-07-13

Remote sensing makes it possible to gather data rapidly, precisely, accurately, and non-destructively, allowing assess grapevines accurately in near real-time. In addition, multispectral cameras capture information different bands, which can be combined generate vegetation indices useful precision agriculture. This dataset contains 16,504 images from a 1.06 ha vineyard affected by Botrytis cinerea, the north of Spain. The photos were taken throughout four UAV flights at 30 m height with...

10.1016/j.dib.2022.108876 article EN cc-by Data in Brief 2023-01-03

Pistachio (Pistacia vera L.) has earned recognition as a significant crop due to its unique nutrient composition and adaptability the growing threat of climate change. Consequently, utilization remote sensing techniques for non-invasive pistachio monitoring become critically important. This research was conducted in two orchards located Spain, aiming assess effectiveness vegetation indices (VIs) estimating nut yield quality under various irrigation conditions. To this end, high-resolution...

10.3390/app13137716 article EN cc-by Applied Sciences 2023-06-29

This study explores spectroscopy in the 350 to 2500 nm range for detecting powdery mildew (Erysiphe necator) grapevine leaves, crucial precision agriculture and sustainable vineyard management. In a controlled experimental setting, spectral reflectance on leaves with varying infestation levels was measured using FieldSpec 4 spectroradiometer during July September. A detailed assessment conducted following guidelines recommended by European Mediterranean Plant Protection Organization (EPPO)...

10.3390/agronomy14030634 article EN cc-by Agronomy 2024-03-21

The "EscaYard" dataset comprises multimodal data collected from vineyards to support agricultural research, specifically focusing on vine health and productivity. Data collection involved two primary methods: (1) unmanned aerial vehicle (UAV) for capturing multispectral images 3D point clouds, (2) smartphones detailed ground-level photography. UAV used was DJI Matrice 210 V2 RTK, equipped with a Micasense Altum sensor, flying at 30 meters above ground level ensure coverage. Ground-level were...

10.1016/j.dib.2024.110497 article EN cc-by Data in Brief 2024-05-03

Innovations in precision agriculture enhance complex tasks, reduce environmental impact, and increase food production cost efficiency. One of the main challenges is ensuring rapid information availability for autonomous vehicles standardizing processes across platforms to maximize interoperability. The lack drone technology standardisation, communication barriers, high costs, post-processing requirements sometimes hinder their widespread use agriculture. This research introduces a...

10.1016/j.atech.2024.100488 article EN cc-by-nc-nd Smart Agricultural Technology 2024-06-15

Remote Sensing (RS) allows the estimation of some important vineyard parameters. There are several platforms for obtaining RS information. In this context, Sentinel satellites a valuable tool since they provide free and regular images earth’s surface. However, problems regarding low-resolution imagery arise when using technology, such as handling mixed pixels that include vegetation, soil shadows. Under condition, Normalized Difference Vegetation Index (NDVI) value in particular pixel is an...

10.3390/app10103612 article EN cc-by Applied Sciences 2020-05-23

Object Detection and Tracking have provided a valuable tool for many tasks, mostly time-consuming prone-to-error jobs, including fruit counting while in the field, among others. Fruit can be challenging assignment humans due to large quantity of available, which turns it into mentally-taxing operation. Hence, is relevant use technology ease task farmers by implementing algorithms facilitate counting. However, those suffer undercounting occlusion, means that hidden behind leaf or branch,...

10.1016/j.dib.2024.110432 article EN cc-by Data in Brief 2024-04-16

Viticulture benefits significantly from rapid grape bunch identification and counting, enhancing yield quality. Recent technological machine learning advancements, particularly in deep learning, have provided the tools necessary to create more efficient, automated processes that reduce time effort required for these tasks. On one hand, drone, or Unmanned Aerial Vehicles (UAV) imagery combined with algorithms has revolutionised agriculture by automating plant health classification, disease...

10.1016/j.heliyon.2025.e42525 article EN cc-by Heliyon 2025-02-01

Integrating Artificial Intelligence (AI) and Extended Reality (XR) technologies into agriculture presents a transformative opportunity to modernize education sustainable food production. Traditional training remains resource-intensive, time-consuming, geographically restrictive, limiting scalability. This study explores an AI-driven Digital Twin (DT) system embedded within gamified XR environment designed enhance decision-making, resource management, practical in viticulture as well woody...

10.3390/asi8020038 article EN cc-by Applied System Innovation 2025-03-17

<title>Abstract</title> Agrivoltaic systems, combining solar energy generation with agricultural activities, offer a sustainable approach to maximising land efficiency. However, these systems can present challenges, such as potential shading effects that may impact fruit quality or crop yields. This study evaluated the of overhead agrivoltaic on apple (<italic>Malus domestica</italic> L. cv. Gala) ripening and maturation patterns in temperate orchard near Lake Constance, Germany. Experiments...

10.21203/rs.3.rs-5527009/v1 preprint EN cc-by Research Square (Research Square) 2025-03-20

A few decades ago, farmers could precisely monitor their croplands just by walking over the fields, but this task becomes more difficult as farm size increases. Precision viticulture can help better understand vineyard and measure some key structural parameters, such Leaf Area Index (LAI). Remote Sensing is a typical approach to monitoring vegetation which measures spectral information directly emitted reflected from vegetation. This study explores new method for estimating LAI projected...

10.20870/oeno-one.2021.55.4.4639 article EN cc-by OENO One 2021-11-29

Counting the number of grape bunches at an early stage development offers relevant information to winegrower about potential yield be harvested. However, manual counting on fields is laborious and time-consuming. Remote sensing, more precisely unmanned aerial vehicles mounted with RGB or multispectral cameras, facilitate this task rapidly accurately. This dataset contains 40 videos from a 1.06-ha vineyard located in northern Spain. Moreover, includes mask labels visible bunches. The were...

10.1016/j.dib.2022.108848 article EN cc-by Data in Brief 2022-12-23

Unmanned Aerial Vehicle (UAV) thermal imagery is rapidly becoming an essential tool in precision agriculture. Its ability to enable widespread crop status assessment increasingly critical, given escalating water demands and limited resources, which drive the need for optimizing use yield through well-planned irrigation vegetation management. Despite advancements methodologies, including of indices, 2D mapping, 3D point cloud technologies, some aspects remain less understood. For instance,...

10.3390/s23208625 article EN cc-by Sensors 2023-10-21

Assessing crop diseases at an early stage allows farmers to apply chemicals the most efficient moment control pest and focus on plants with highest risk of developing disease. Moreover, earlier assessment lower consequences, such as yield reduction, which is crucial feed increasing world population. BBR first open-source software based physical phenological parameters that grant botrytis bunch rot disease, caused by Botrytis cinerea, in vineyards using UAV images. This has been released...

10.1016/j.softx.2023.101542 article EN cc-by SoftwareX 2023-10-07

Typically, commercial orchards and vineyards consist of large fields that encounter similar development phases at once. Thus, it becomes necessary to efficiently fly over all detect fruit identify their status in a very limited timeframe. For this purpose, Unmanned Aerial Vehicles (UAVs) path planning plays pivotal role agriculture as enables optimal coverage agricultural fields, leading enhanced data acquisition improved precision practices, for instance, disease assessment pesticide...

10.1016/j.compag.2024.108972 article EN cc-by Computers and Electronics in Agriculture 2024-04-23

Interest in pistachios has increased recent years due to their healthy nutritional profile and high profitability. In pistachio trees, as other woody crops, the volume of canopy is a key factor that affects crop load, water requirements, quality. However, canopy/crown monitoring time-consuming labor-intensive, it traditionally carried out by measuring tree dimensions field. Therefore, methods for rapid characterization are needed providing accurate information can be used management...

10.3390/rs14236006 article EN cc-by Remote Sensing 2022-11-27
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