Search results for " DSM"
showing 10 items of 14 documents
Processing and Assessment of Spectrometric, Stereoscopic Imagery Collected Using a Lightweight UAV Spectral Camera for Precision Agriculture
2013
Imaging using lightweight, unmanned airborne vehicles (UAVs) is one of the most rapidly developing fields in remote sensing technology. The new, tunable, Fabry-Perot interferometer-based (FPI) spectral camera, which weighs less than 700 g, makes it possible to collect spectrometric image blocks with stereoscopic overlaps using light-weight UAV platforms. This new technology is highly relevant, because it opens up new possibilities for measuring and monitoring the environment, which is becoming increasingly important for many environmental challenges. Our objectives were to investigate the processing and use of this new type of image data in precision agriculture. We developed the entire pro…
Efficacy of an internet-based psychological intervention for problem gambling and gambling disorder: study protocol for a randomized controlled trial
2021
Gambling Disorder is a prevalent non-substance use disorder, which contrasts with the low number of people requesting treatment. Information and Communication Technologies (ICT) could help to enhance the dissemination of evidence-based treatments and considerably reduce the costs. The current study seeks to assess the efficacy of an online psychological intervention for people suffering from gambling problems in Spain. The proposed study will be a two-arm, parallel-group, randomized controlled trial. A total of 134 participants (problem and pathological gamblers) will be randomly allocated to a waiting list control group (N = 67) or an intervention group (N = 67). The intervention program i…
Subtyping treatment-seeking gaming disorder patients
2021
Abstract Background and aims Gaming Disorder (GD) is characterized by a pattern of persistent and uncontrolled gaming behavior that causes a marked impairment in important areas of functioning. The evolution of the worldwide incidence of this disorder warrants further studies focused on examining the existence of different subtypes within clinical samples, in order to tailor treatment. This study explored the existence of different profiles of patients seeking treatment for GD through a data-driven approach. Methods The sample included n = 107 patients receiving treatment for GD (92% men and 8% women) ranging between 14 and 60 years old (mean age = 24.1, SD = 10). A two-step clustering anal…
Comorbilidad de TEA y TDAH: revisión sistemática de los avances en investigación
2016
La reciente publicación del DSM-5, introduce la novedad de aceptar la posibilidad de un diagnóstico comórbido de los Trastorno de Espectro Autista (TEA) y el Trastorno por Déficit de Aten- ción/Hiperactividad (TDAH). En este artículo se realiza una revisión de trabajos que han estudiado esta comorbilidad. Se revisaron un total de 28 investigaciones, estableciendo 4 temáticas diferentes. La investigación muestra tasas variables de comorbili- dad de TEA y TDAH dependiendo de la edad y procedencia de las mues- tras, y de los criterios diagnósticos empleados. Cuando se da la comorbili- dad de TEA y TDAH aumenta la severidad de la sintomatología autista y de trastornos externalizantes e internal…
Expert appraisal of criteria for assessing gaming disorder: An international Delphi study
2021
Background and aims Following the recognition of ‘internet gaming disorder’ (IGD) as a condition requiring further study by the DSM‐5, ‘gaming disorder’ (GD) was officially included as a diagnostic entity by the World Health Organization (WHO) in the eleventh revision of the International Classification of Diseases (ICD‐11). However, the proposed diagnostic criteria for gaming disorder remain the subject of debate, and there has been no systematic attempt to integrate the views of different groups of experts. To achieve a more systematic agreement on this new disorder, this study employed the Delphi expert consensus method to obtain expert agreement on the diagnostic validity, clinical util…
THERMOGRAPHIC CHARACTERIZATION OF A LANDFILL TROUGH AN UNMANNED AERIAL VEHICLE
2019
The use of the thermal imaging camera for Unmanned Aerial Vehicle (UAV) survey is to date very common for environmental analysis, especially if high spatial resolution images are required. Some analyses require images to be acquired close to sunrise, to avoid the influence of the incident solar radiation on the surface temperature, as in the case of a landfill survey. Indeed, thermal anomalies due to generated landfill biogas can be characterized once other heat sources are excluded. In this framework, thermal images need to be processed similarly to optical images by typical photogrammetric workflows producing both a Digital Surface Model (DSM) and an ortho-image. The low spatial resolutio…
UAV Systems for Photogrammetric Data Acquisition of Archaeological Sites
2012
The use of UAV systems for surveying archaeological sites is becoming progressively more common due to the considerable potential in terms of rapidity of survey, costs and accuracy. The paper presents the first results of the photogrammetric survey of the archaeological site of Himera in Sicily (Italy) using by UAV systems. A complete documentation of the site through the production of a DSM and an ortho image were carried out. The research further evaluated two different image processing workflows: a typical photogrammetric approach and a computer vision approach. An ortho image of the archaeological site with a very high resolution was obtained. Dept. of Civil, Environmental, Aerospace an…
Tecniche per la misura e il monitoraggio della superficie del fondo di un modello fluviale
2009
L’impiego di modelli fluviali per lo studio delle variazioni della morfologia del fondo è un argomento oggetto di interesse nel campo dell’idrologia a causa dei molteplici fenomeni interconnessi alla evoluzione di alvei naturali. Presso il laboratorio del Dipartimento di Ingegneria Idraulica e Applicazioni Ambientali dell’Università di Palermo, già da diversi anni, viene utilizzato un modello fluviale a fondo mobile per studiare i metodi di previsione della deformazione planimetrica ed altimetrica di un alveo naturale. Le ricerche condotte nel corso degli anni sono state finalizzate a ricostruire la configurazione di equilibrio del fondo deformato per effetto del deflusso della corrente. A …
Analisi e comparazione di modelli di superficie di reperti archeologici realizzati tramite laser scanner e fotogrammetria
2009
La ricerca svolta si è posta come obiettivo quello di verificare l’accuratezza di modelli di superficie (Digital Surface Model – DSM) di reperti archeologici realizzati attraverso procedure fotogrammetriche. La sperimentazione è stata condotta su alcuni reperti, già oggetto di studio in precedenti ricerche, conservati presso il museo Archeologico Regionale di Palermo. In questo lavoro vengono presentati i primi risultati relativi al rilievo della metopa di “Europa rapita dal Toro”. I DSM, generati con due differenti software di fotogrammetria, sono stati messi a confronto con il DSM ottenuto con un laser scanner a triangolazione ottica. Tale modello è stato considerato come riferimento per …