Entradas por Servicio Periférico I+D basado en Drones

Effects of image orientation and ground control points distribution on unmanned aerial vehicle photogrammetry projects on a road cut slope

26 septiembre, 2016 /0 Comentarios/en , /por

Fernando Carvajal Ramírez, Francisco Agüera Vega, and Patricio J. Martínez Carricondo 2016 Journal of Applied of Remote Sensing, 034004 http://dx.doi.org/10.1117/1.JRS.10.034004 ABSTRACT The morphology of road cut slopes, such as length and high slopes, is one of the most prevalent causes of landslides and terrain stability troubles. Digital elevation models (DEMs) and orthoimages are used for […]

Accuracy of Digital Surface Models and Orthophotos Derived from Unmanned Aerial Vehicle Photogrammetry

10 agosto, 2016 /0 Comentarios/en , /por

Francisco Agüera Vega, Fernando Carvajal Ramírez, Patricio J. Martínez Carricondo 2016 Journal of Surveying Engineering, 04016025 http://dx.doi.org/10.1061/(ASCE)SU.1943-5428.0000206 ABSTRACT This paper explores the influence of flight altitude, terrain morphology, and the number of ground control points (GCPs) on digital surface model (DSM) and orthoimage accuracies obtained with unmanned aerial vehicle (UAV) photogrammetry. For this study, 60 photogrammetric […]

Estimating the Evaporation from Irrigation Reservoirs of Greenhouses Using Satellite Imagery

15 julio, 2016 /0 Comentarios/en , /por

Fernando Carvajal Ramírez, Francisco Agüera Vega, and Julián Sánchez-Hermosilla López 2016 Environ. Prog. Sustainable Energy, 35: 1750–1757 http://dx.doi.org/10.1002/ep.12419 ABSTRACT The agricultural system in south-eastern Spain is based on intensive horticulture in greenhouses. Public and private organizations have spent substantial resources on optimizing irrigation, due to the scant annual precipitation (close to 250 mm). In order […]

Modelización virtual de la Fortaleza de Bač, Serbia en su contexto cultural e histórico

23 junio, 2016 /0 Comentarios/en , /por

Fecha de defensa: 2016 Doctorando: Svetlana Nikcevic Directores: Fernando Carvajal Ramírez Francisco Agüera Vega https://www.educacion.gob.es/teseo/mostrarRef.do?ref=1273659   RESUMEN En los últimos años, se viene comprobando la necesidad de registrar el patrimonio cultural, gráfica y numéricamente, bien para su estudio, rehabilitación o conservación. Uno de los métodos utilizados para este fin es la Fotogrametría, terrestre o aérea, […]

Multi-temporal imaging using an unmanned aerial vehicle for monitoring a sunflower crop

31 enero, 2015 /0 Comentarios/en , /por

Francisco Agüera Vega, Fernando Carvajal Ramírez, Mónica Pérez Saiz, Francisco Orgaz Rosúa 2015 Biosystems engineering 132: 19-2 7 http://dx.doi.org/10.1016/j.biosystemseng.2015.01.008 ABSTRACT The objective of this study is to determine the capability of an unmanned aerial vehicle system carrying a multispectral sensor to acquire multitemporal images during the growing season of a sunflower crop. Measurements were made […]

Water balance in artificial on-farm agricultural water reservoirs for the irrigation of intensive greenhouse crops

1 enero, 2014 /0 Comentarios/en , /por

Fernando Carvajal Ramírez, Francisco Agüera Vega, Julián Sánchez-Hermosilla López. 2014 Agricultural Water Management 131: 146– 155 http://dx.doi.org/10.1016/j.measurement.2016.12.002 ABSTRACT The intensive-cropping system used in southeastern Spain is one of the most productive of the European Union. It is based on the efficient use of irrigation water using localised irrigation systems with water obtained mostly from small […]

Adquisición y análisis de imágenes tomadas desde una aeronave no tripulada para el manejo localizado de cultivos en Agricultura de Precisión

16 diciembre, 2013 /0 Comentarios/en , /por

Fecha de defensa: 2013 Doctorando: Mónica Pérez Saiz Directores: Francisco Agüera Vega Fernando Carvajal Ramírez Julián Sánchez-Hermosilla López https://www.educacion.gob.es/teseo/mostrarRef.do?ref=1065159 RESUMEN  El Manejo Localizado del Cultivo (MLC) se refiere a un sistema agrícola de rápido desarrollo que promueve prácticas de manejo agrícola variables dentro de un campo de acuerdo a las condiciones específicas del lugar. Una […]

Low cost surveying using an unmanned aerial vehicle

4 septiembre, 2013 /0 Comentarios/en , /por

Mónica Pérez Saiz, Francisco Agüera Vega, Fernando Carvajal Ramírez 2013 UAV-g 2013. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences – ISPRS Archives 40: 311-315 http://www.scopus.com/inward/record.url?eid=2-s2.0-84896036384&partnerID=MN8TOARS ABSTRACT Traditional manned airborne surveys are usually expensive and the resolution of the acquired images is often limited. The main advantage of Unmanned Aerial Vehicle (UAV) […]

Modelo para la determinación del volumen de aplicación de fitosanitarios en cultivos de tomate en invernadero

23 julio, 2013 /0 Comentarios/en , /por

Fecha de defensa: 2013 Doctorando: Francisco César Páez Cano Directores: Julián Sánchez-Hermosilla López Fernando Carvajal Ramírez Francisco Agüera Vega https://www.educacion.gob.es/teseo/mostrarRef.do?ref=1045077 RESUMEN La aplicación de productos fitosanitarios para el control de plagas y enfermedades en invernadero, se realiza habitualmente mediante el empleo de equipos poco tecnificados, como son las pistolas pulverizadoras manuales. Se trata de equipos […]