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Browsing by Author "Ruiz Fernández, Luis Ángel"

Now showing items 21-40 of 87

Aplicación de datos LiDAR aéreo en la estimación de copas y de variables dendrométricas de árboles frutales

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 ...
Aplicación de filtros morfológicos en imágenes

Ruiz Fernández, Luis Ángel (Universitat Politècnica de València, 2020-06-10)

Se describe la aplicación de filtros morfológicos en imágenes, con orientación a imágenes adquiridas mediante técnicas de teledetección
Assessing contextual descriptive features for plot-based classification of urban areas

Hermosilla, T.; Ruiz Fernández, Luis Ángel; Recio Recio, Jorge Abel; Cambra López, María (Elsevier, 2012-05-15)

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 ...
Assessment of factors affecting shrub volume estimations using airborne discrete-return LiDAR data in Mediterranean areas

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 ...
Automated classification of crop types and condition in a mediterranean area using a fine-tuned convolutional neural network

Ruiz Fernández, Luis Ángel; Almonacid-Caballer, J.; Crespo-Peremarch, P.; Recio Recio, Jorge Abel; Pardo Pascual, Josep Eliseu; Sánchez-García, Elena (ISPRS, 2020-09-02)

[EN] Crop classification based on satellite and aerial imagery is a recurrent application in remote sensing. It has been used as input for creating and updating agricultural inventories, yield prediction and land management. ...
Automated extraction of tree and plot-based parameters in citrus orchards from aerial images

Recio Recio, Jorge Abel; Hermosilla, T.; Ruiz Fernández, Luis Ángel; Palomar-Vázquez, Jesús (Elsevier, 2013-01-01)

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 ...
Automatic extraction of shorelines from Landsat TM and ETM+ multi-temporal images with subpixel precision

Pardo Pascual, Josep Eliseu; Almonacid Caballer, Jaime; Ruiz Fernández, Luis Ángel; Palomar-Vázquez, Jesús (Elsevier, 2012-08)

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 ...
Caracterización del ciclo del cultivo del arroz en l´Albufera de Valencia mediante imágenes Landsat

Gómez Jiménez, José Manuel (Universitat Politècnica de València, 2015-05-25)

[ES] Con el presente trabajo se persigue un triple objetivo. En primer lugar, se pretende realizar un proceso completo en el ámbito de la teledetección, partiendo de cero, y realizando todas las fases importantes que ...
Cartografía de variables forestales a partir de datos LiDAR

Ruiz Fernández, Luis Ángel (Universitat Politècnica de València, 2020-07-06)

Se describe el procedimiento para la elaboración de mapas de variables forestales a partir de datos LiDAR (Light Detection and Ranging) y datos de campo
Catalogación de rutas de montaña en el Pirineo Central mediante datos georreferenciados y técnicas SIG

Moll Romeu, Kevin (Universitat Politècnica de València, 2019-09-25)

[ES] Se realiza un inventario de rutas de montaña en la zona del Pirineo Central mediante estudio bibliográfico y de campo, adquisición, preprocesado y combinación de datos georreferenciados (MDT, imágenes Sentinel 2, ...
Change detection in periurban areas based on contextual classification

Hermosilla Gómez, Txomin; Gil Yepes, José Luis; Recio Recio, Jorge Abel; Ruiz Fernández, Luis Ángel (E. Schweizerbart Science Publishers, 2012)

This paper presents a methodology for change detection in peri-urban areas using high spatial resolution image and lidar data, founded on object-based image classification and a comparison of the classification results ...
Characterizing Landscape Spatial Heterogeneity Using Semivariogram Parameters Derived from NDVI Images

de Oliveira Silveira, Eduarda Martiniano; de Mello, Jose Marcio; Acerbi Junior, Fausto Weimar; dos Reis, Aliny Aparecida; Withey, Kieran Daniel; Ruiz Fernández, Luis Ángel (SciELO, 2017)

[EN] Assuming a relationship between landscape heterogeneity and measures of spatial dependence by using remotely sensed data, the aim of this work was to evaluate the potential of semivariogram parameters, derived from ...
Characterizing understory vegetation in Mediterranean forests using full-waveform airborne laser scanning data

Crespo-Peremarch, Pablo; Tompalski, P.; Coops, N.C.; Ruiz Fernández, Luis Ángel (Elsevier, 2018)

[EN] The use of laser scanning acquired from the air, or ground, holds great potential for the assessment of forest structural attributes, beyond conventional forest inventory. The use of full-waveform airborne laser ...
Cityscape, poverty and crime: a quantitative assessment using VHR imagery

Patiño Quinchía, Jorge Eduardo (Universitat Politècnica de València, 2016-01-07)

[EN] The first part of this work reviews the potential applications of satellite remote sensing to regional science research in urban settings. The availability of satellite remote sensing data has increased significantly ...
Clasificación. Estudio de Método Vector de Cambios, en cultivos del Condado de Wiltshire (Inglaterra)

Villoslada Del Valle, María José (Universitat Politècnica de València, 2015-05-19)

[ES] Este proyecto tiene como principal finalidad la Clasificación de los cultivos situados en el Condado de Wiltshire (Inglaterra). Posteriormente, aplicaremos el Método de Vector de Cambios, para interpretar los ...
Classification of UAV-based photogrammetric point clouds of riverine species using machine learning algorithms: a case study in the Palancia river, Spain

Carbonell-Rivera, Juan Pedro; Estornell Cremades, Javier; Ruiz Fernández, Luis Ángel; Torralba, J.; Crespo-Peremarch, P. (ISPRS, 2020-09-02)

[EN] The management of riverine areas is fundamental due to their great environmental importance. The fast changes that occur in these areas due to river mechanics and human pressure makes it necessary to obtain data with ...
Comparing the generation of DTM in a forest ecosystem using TLS, ALS and UAV-DAP, and different software tools

Crespo-Peremarch, P.; Torralba, J.; Carbonell-Rivera, Juan Pedro; Ruiz Fernández, Luis Ángel (ISPRS, 2020-09-02)

[EN] Remote sensing and photogrammetry techniques have demonstrated to be an important tool for the characterization of forest ecosystems. Nonetheless, the use of these techniques requires an accurate digital terrain model ...
Conceptualización de una herramienta de visualización basada en web para demostrar la versatilidad de información derivada de imágenes de satélite para estudiar impactos del cambio climático

Fabián Vigueras, Sergio (Universitat Politècnica de València, 2018-04-12)

[ES] Se espera que los datos provenientes de imágenes de satélite y los productos derivados de estas aumenten debido a los nuevos satélites y períodos de observación más largos. El objetivo de esta tesis es llenar la ...
Definition of a comprehensive set of texture semivariogram features and their evaluation for object-oriented image classification

Balaguer Beser, Ángel Antonio; Ruiz Fernández, Luis Ángel; Hermosilla, T.; Recio Recio, Jorge Abel (Elsevier, 2010-02)

In this paper, a comprehensive set of texture features extracted from the experimental semivariogram of specific image objects is proposed and described, and their usefulness for land use classification of high resolution ...
Deriving pseudo-vertical waveforms from small-footprint full-waveform LiDAR data

Hermosilla, T.; Coops, Nicholas; Ruiz Fernández, Luis Ángel; Moskal, Monika (Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2014-03)

[EN] When processing scanning LiDAR data, it is commonly assumed that the extracted full-waveform LiDAR pulse registers truly vertical information of forest canopies. This assumption may lead to uncertain results for the ...