A software application for automatic descriptive feature extraction from image-objects, FETEX 2.0, is presented and described in this paper. The input data include a multispectral high resolution digital image and a vector ...
[EN] Mapping forest structure variables provides important information for the estimation of forest biomass, carbon stocks, pasture suitability or for wildfire risk prevention and control. The optimization of the prediction ...
Sapena Moll, Marta; Ruiz Fernández, Luis Ángel(Elsevier, 2019-01)
[EN] Promoting sustainable urbanization and limiting land consumption is a local and regional priority policy target in Europe. Monitoring and quantifying urban growth supports decision-making processes for the prevention ...
[EN] The abandonment of agricultural plots entails a low economic productivity of the land and a higher vulnerability to wildfires and degradation of affected areas. In this sense, the local government of Galicia is promoting ...
Mauro, Francisco; Monleón, V. J.; Temesgen, H.; Ruiz Fernández, Luis Ángel(Canadian Science Publishing, 2017)
[EN] Accounting for spatial correlation of LiDAR model errors can improve the precision of model-based estimators. To estimate spatial correlation, sample designs that provide close observations are needed, but their ...
Estornell Cremades, Javier; Ruiz Fernández, Luis Ángel; Velázquez Martí, Borja; Hermosilla, T.(Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2011)
[EN] The creation of a quality Digital Terrain Model (DTM) is essential for representing and analyzing the Earth in a digital form. The continuous improvements in the acquisition and the potential of airborne Light Detection ...
This paper assesses the combined effect of field plot size and LiDAR density on
the estimation of four forest structure attributes: volume, total biomass, basal area and
canopy cover. A total of 21 different plot sizes ...
[EN] LiDAR full-waveform (LFW) pulse density is not homogeneous along study areas due to overlap between contiguous flight stripes and, to a lesser extent, variations in height, velocity and altitude of the platform. As a ...
Soriano Belda, Inmaculada(Universitat Politècnica de València, 2017-10-02)
[ES] La calidad ambiental en las áreas urbanas es un aspecto cada vez más relevante que requiere de un seguimiento de su evolución.
La caracterización tipológica de áreas urbanas en función del número, área y distribución ...
Ruiz Fernández, Luis Ángel(Universitat Politècnica de València, 2013-07-04)
Fundamentos del método de análisis de componentes principales orientado al análisis de imágenes multiespectrales. Aplicaciones más relevantes en teledetección.
Estornell Cremades, Javier(Universitat Politècnica de València, 2011-09-12)
Los objetivos de esta investigación han sido adaptar un algoritmo basado en procesos iterativos de búsqueda de elevaciones mínimas a partir de datos LiDAR para el cálculo de un MDE en zonas de montaña mediterránea, y ...
Ruiz Fernández, Luis Ángel(Universitat Politècnica de València, 2016-07-28)
Los métodos de clasificación de imágenes multiespectrales se basan normalmente en la asignación de un valor temático (clase) a cada píxel a partir de sus valores de intensidad en las diferentes bandas espectrales. Sin ...
Crespo Peremarch, Pablo(Universitat Politècnica de València, 2015-06-17)
[EN] This project tries to improve the land cover classification of aerial images using data
mining. A comparison of some data mining techniques is done so as to classify urban
and peri-urban areas, using the image ...
Navarro Gisbert, Yolanda(Universitat Politècnica de València, 2015-05-19)
[ES] El Parque Natural de la Albufera constituye uno de los ecosistemas húmedos más
importantes de la Comunidad Valenciana y de la cuenca mediterránea. Cuenta con
una superficie de 21.120 hectáreas, está situado a 10 Km ...
Puig Mengual, Carlos Antonio(Universitat Politècnica de València, 2014-12-04)
En este treball es va plantejar i desenrotllar una metodologia per a la delineació
i extracció de forma individual de les diferents copes arbòries que es troben
situades en l’àmbit de la zona d’estudi per mitjà de dades ...
A methodology for mapping urban land-use types integrating information from multiple data sources (high spatial resolution imagery, LiDAR data, and cadastral plots) is presented. A large set of complementary descriptive ...
Estornell Cremades, Javier; Ruiz Fernández, Luis Ángel; Velázquez Martí, Borja; Hermosilla Gómez, Txomin(Society of Photo-optical Instrumentation Engineers (SPIE), 2012)
Shrub vegetation is a key element of Mediterranean forest areas and it is necessary to develop tools that allow a precise knowledge of this vegetation. This study aims to predict shrub volume and analyze the factors affecting ...
A plot-based approach is proposed to detect fruit trees from high spatial resolution aerial images and extract tree and plot-based parameters, such as fraction of tree cover, number of trees, and planting patterns. Each ...
A high precision geometric method for automated shoreline detection from Landsat TM and ETM+ imagery is presented. The methodology is based on the application of an algorithm that ensures accurate image geometric registration ...