J. L. Pérez
University of Jaén
PhotogrammetryGeologyGeodesyElevationStructure from motionArtificial intelligenceBundle adjustmentDigital elevation modelLandslideGeographySoftwareDigital photogrammetryComputer visionLidarCartographyGeodetic datumGlobal Positioning SystemCultural heritageRemote sensingGeoidOrthophoto
25Publications
7H-index
243Citations
Publications 26
Newest
#1T. FernándezH-Index: 13
#2J. L. PérezH-Index: 7
Last. J. ChacónH-Index: 17
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In this work a detailed analysis of the temporal evolution of the Almegijar landslide is presented. It is a rock slide located in the Alpujarras region (Granada, Spain) that has developed over the last 30 years. Six datasets and photogrammetric flights corresponding to the years 1956, 1984, 1992, 2001, 2008, and 2010 were surveyed. The more recent flight of 2010 combined an aerial digital camera and a LiDAR sensor and was oriented by means of in-flight data and tie points. This 2010 flight allow...
14 CitationsSource
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#1Carlos Manuel Colomo (University of Jaén)H-Index: 5
#2J. L. Pérez (University of Jaén)H-Index: 7
Last. Francisco J. Galindo Rosales (University of Jaén)H-Index: 1
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results obtained in using free software and fusion of data from laser scanner and photographs. In this sense, one of the problems that can occur when Heritage documentation is made, is the impossibility of move the object of study from other places with appropriates environment conditions to capture data. This problem is especially important in the case of sculptures found upright with certain height, where many upper portions are hidden by the inability to locate safely locate the instruments. ...
1 CitationsSource
#1T. FernándezH-Index: 13
#2J. L. PérezH-Index: 7
Last. J. DelgadoH-Index: 8
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This paper deals with the application of Unmanned Aerial Vehicles (UAV) techniques and high resolution photogrammetry to study the evolution of a landslide affecting olive groves. The last decade has seen an extensive use of UAV, a technology in clear progression in many environmental applications like landslide research. The methodology starts with the execution of UAV flights to acquire very high resolution images, which are oriented and georeferenced by means of aerial triangulation, bundle b...
52 CitationsSource
#1J. Cardenal (University of Jaén)H-Index: 8
#2J. L. Pérez (University of Jaén)H-Index: 7
Last. A. Mozas (University of Jaén)H-Index: 2
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Abstract. The province of Jaen (Southern Spain) has one of the largest concentrations of medieval fortresses of all Europe. Moreover ancient Iberian settlements located in oppida (fortified villages) and dated at VI-IV BC also are outstanding examples of historical heritage landmarks in the region. Most of these places are being restored or under documentation analysis to prevent their progressive deterioration. These places have several geometric characteristics in common, such as isolated loca...
1 CitationsSource
#1T. FernandezH-Index: 2
#2J. L. PérezH-Index: 7
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espanolEn este trabajo se presenta una metodologia para la datacion o la estimacion de la actividad de los movimientos de ladera a partir de tecnicas fotogrametricas y LiDAR, que permiten abordar el estudio de regiones extensas. Para ello es necesario orientar los vuelos fotogrametricos empleados, para a continuacion obtener los modelos digitales de elevaciones y las ortofotografias; a partir de ellos se pueden obtener modelos diferenciales entre campanas, para identificar posibles zonas inestab...
#1José Antonio Palenzuela (UGR: University of Granada)H-Index: 6
#2Maria Marsella (Sapienza University of Rome)H-Index: 21
Last. C. Irigaray (UGR: University of Granada)H-Index: 17
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In this work, a simple methodology is presented for processing high-resolution topographical data over wide areas. It is based on digital elevation model of differences (DEMoD) among high-resolution digital models (HRDEM) produced from light-detection and ranging (LiDAR) data. Because these qualitative approaches based on HRDEMs can be affected by errors related to misalignment between different passes of the airborne sensor and errors in classifying points, a simplified strategy was undertaken ...
18 CitationsSource
#1T. Fernández (University of Jaén)H-Index: 13
#2J. L. Pérez (University of Jaén)H-Index: 7
Last. M.C. Sánchez (University of Jaén)H-Index: 1
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This paper presents a methodology for slope instability monitoring using photogrammetric techniques with very high resolution images from an unmanned aerial vehicle (UAV). An unstable area located in La Guardia (Jaen, Southern Spain), where an active mud flow has been identified, was surveyed between 2012 and 2014 by means of four UAV flights. These surveys were also compared with those data from a previous conventional aerial photogrammetric and LiDAR survey. The UAV was an octocopter equipped ...
13 CitationsSource
#1Alberto González-Díez (UC: University of Cantabria)H-Index: 7
#2Gema Fernández-Maroto (UC: University of Cantabria)H-Index: 2
Last. J. Delgado (University of Jaén)H-Index: 8
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This paper presents a method for studying recent landscape evolution due to mass movements. The method presented employs digital photogrammetric techniques, combined with global positioning system (GPS) measurements, to analyse landslide features depicted in aerial images taken by ad hoc and historical flights. The method was applied and validated in a 7 -km2 area, located on a south-facing slope of a tributary of the Pas River (Cantabrian Range, Spain). In this area many landslide deposits and ...
22 CitationsSource
#1T. Fernández (University of Jaén)H-Index: 13
#2J. L. Pérez (University of Jaén)H-Index: 7
Last. J. Delgado (University of Jaén)H-Index: 8
view all 6 authors...
Este trabajo presenta una metodologia para la monitorizacion de laderas inestables mediante tecnicas fotogrametricas, partiendo de vuelos UAV de muy alta resolucion. Para ello se han realizado y analizado cuatro campanas de UAV desde noviembre de 2012 en una zona situada en las inmediaciones de la Guardia (Jaen), y ademas se ha utilizado un vuelo fotogrametrico previo de la misma zona. Los vuelos UAV se han realizado mediante una plataforma aerea ligera de tipo helicoptero o drone �provisto de G...
1 Citations