A New Forensic Video Database for Source Smartphone Identification: Description and Analysis

In recent years, the field of digital imaging has made significant progress, so that today every smartphone has a built-in video camera that allows you to record high-quality video for free and without restrictions. On the other hand, rapidly growing internet technology has contributed significantly to the widespread use of digital video via web-based multimedia systems and mobile smartphone applications such as YouTube, Facebook, Twitter, WhatsApp, etc. However, as the recording and distribution of digital videos have become affordable nowadays, security issues have become threatening and spread worldwide. One of the security issues is identifying source cameras on videos. There are some new challenges that should be addressed in this area. One of the new challenges is individual source camera identification (ISCI), which focuses on identifying each device regardless of its model. The first step towards solving the problems is a popular video database recorded by modern smartphone devices, which can also be used for deep learning methods that are growing rapidly in the field of source camera identification. In this paper, a smartphone video database named Qatar University Forensic Video Database (QUFVD) is introduced. The QUFVD includes 6000 videos from 20 modern smartphone representing five brands, each brand has two models, and each model has two identical smartphone devices. This database is suitable for evaluating different techniques such as deep learning methods for video source smartphone identification and verification. To evaluate the QUFVD, a series of experiments to identify source cameras using a deep learning technique are conducted. The results show that improvements are essential for the ISCI scenario on video

Dashcam forensics : a preliminary analysis of 7 dashcam devices

Dashboard cameras (\dashcams") are becoming an important in-car accessory used to record audio and visual footage of car journeys. The audio/video footage produced by dashcams have become important items of evidence. This paper explores the problems related to the management and processing of dashcam evidence, and in particular, highlights challenges to the admissibility of evidence submitted online. The key contribution of this paper is to outline the results of an experiment which aimed to reveal the prevalence and provenance of artefacts created by the use of dashcams on the SD storage system of seven dashcam systems. The research describes the provenance of evidential artefacts relating to: the dashcam recording mode, GPS data, vehicular speed data, licence plate data, and temporal data which was found in at least six locations - namely: NMEA files, configuration/diagnostic files, EXIF metadata, directory structures, filename structures and imagery watermarks

Etude et réalisation d'un système de communications par lumière visible (VLC/LiFi). Application au domaine automobile.

The scientific problematic of this PhD is centered on the usage of Visible LightCommunications (VLC) in automotive applications. By enabling wireless communication amongvehicles and also with the traffic infrastructure, the safety and efficiency of the transportation canbe substantially increased. Considering the numerous advantages of the VLC technologyencouraged the study of its appropriateness for the envisioned automotive applications, as analternative and/or a complement for the traditional radio frequency based communications.In order to conduct this research, a low-cost VLC system for automotive application wasdeveloped. The proposed system aims to ensure a highly robust communication between a LEDbasedVLC emitter and an on-vehicle VLC receiver. For the study of vehicle to vehicle (V2V)communication, the emitter was developed based on a vehicle backlight whereas for the study ofinfrastructure to vehicle (I2V) communication, the emitter was developed based on a traffic light.Considering the VLC receiver, a central problem in this area is the design of a suitable sensorable to enhance the conditioning of the signal and to avoid disturbances due to the environmentalconditions, issues that are addressed in the thesis. The performances of a cooperative drivingsystem integrating the two components were evaluated as well.The experimental validation of the VLC system was performed in various conditions andscenarios. The results confirmed the performances of the proposed system and demonstrated thatVLC can be a viable technology for the considered applications. Furthermore, the results areencouraging towards the continuations of the work in this domain.La problématique scientifique de cette thèse est centrée sur le développement decommunications par lumière visible (Visible Light Communications - VLC) dans lesapplications automobiles. En permettant la communication sans fil entre les véhicules, ou entreles véhicules et l’infrastructure routière, la sécurité et l'efficacité du transport peuvent êtreconsidérablement améliorées. Compte tenu des nombreux avantages de la technologie VLC,cette solution se présente comme une excellente alternative ou un complément pour lescommunications actuelles plutôt basées sur les technologies radio-fréquences traditionnelles.Pour réaliser ces travaux de recherche, un système VLC à faible coût pour applicationautomobile a été développé. Le système proposé vise à assurer une communication très robusteentre un émetteur VLC à base de LED et un récepteur VLC monté sur un véhicule. Pour l'étudedes communications véhicule à véhicule (V2V), l'émetteur a été développé sur la base d’un pharearrière rouge de voiture, tandis que pour l'étude des communications de l'infrastructure auvéhicule (I2V), l'émetteur a été développé sur la base d'un feu de circulation. Considérant lerécepteur VLC, le problème principal réside autour d’un capteur approprié, en mesured'améliorer le conditionnement du signal et de limiter les perturbations dues des conditionsenvironnementales. Ces différents points sont abordés dans la thèse, d’un point de vue simulationmais également réalisation du prototype.La validation expérimentale du système VLC a été réalisée dans différentes conditions etscénarii. Les résultats démontrent que la VLC peut être une technologie viable pour lesapplications envisagées

LE REGIONI D'EUROPA TRA IDENTITÀ LOCALI, NUOVE COMUNITÀ E DISPARITÀ TERRITORIALI

L’Europa è oggi attraversata da una forte domanda di autonomia da parte dei territori: da un lato, a tutela dell’identità delle comunità locali e, dall’altro, per la crescente rivendicazione di una più ampia rappresentanza delle cittadinanze. Queste istanze possono, però, mettere a rischio gli obiettivi di equilibrio e di coesione economica, sociale e territoriale, da sempre al centro della riflessione e delle proposte sviluppate dagli studiosi delle scienze regionali. La recente crisi ha acuito l’instabilità e allargato i complessivi divari tra le regioni, anche nella loro dinamica interna di evoluzione. Alla resilienza economica non sempre è corrisposto, nell’attuale transizione verso un nuovo paradigma, il mantenimento di solidi livelli di coesione sociale e di integrazione tra aree e comunità. Il volume raccoglie una selezione di contributi presentati alla XXXIX Conferenza Italiana di Scienze Regionali, svoltasi a Bolzano il 17, 18 e 19 settembre 2018. Nella sua articolazione, esso si sviluppa in tre parti. La prima analizza il tema della domanda di autonomia da parte dei territori all’interno dello sviluppo economico e sociale di regioni e paesi, e dell’attuale dibattito sul federalismo differenziato. Nella seconda le riflessioni si estendono alla crescente disparità tra aree centrali e aree periferiche, tra aree interne e aree esposte, tra Nord e Sud dei Paesi e dell’Europa, mentre nella terza parte, l’analisi guarda ai mutevoli equilibri tra territori e sistemi locali urbani e rurali, tra pianura e montagna e, all’interno delle aree montane, tra i fondivalle maggiormente urbanizzati e i territori di alta quota, zone spesso di confine tra province, regioni e stati. La novità editoriale di quest’anno è rappresentata da uno spazio dedicato a brevi contributi a cura di giovani autori vincitori dei premi AISRe.Europe is today crossed by a strong demand for autonomy from the territories: to protect the identity of local communities and, also analyze the growing demand for a broader representation of citizens. However, these issues can jeopardize the objectives of balance and economic, social and territorial cohesion, which have always been at the center of the reflection and proposals developed by scholars of regional sciences. The recent crisis has worsened instability and widened the overall gaps between the regions, including in their internal dynamics of evolution. Economic resilience is not always matched, in the current transition towards a new paradigm, by maintaining solid levels of social cohesion and integration between areas and communities. The volume collects a selection of contributions presented at the XXXIX Italian Conference of Regional Science, held in Bolzano on 17, 18 and 19 September 2018. The volume is divided into three parts. The first analyzes the issue of the demand for autonomy by the territories within the economic and social development of regions and countries, and the current debate on differentiated federalism. In the second, the reflections extend to the growing disparity between central and peripheral areas, between internal and exposed areas, between North and South of countries and Europe, while in the third part, the analysis looks at the changing balance between territories and systems. urban and rural areas, between plains and mountains and, within mountain areas, between the most urbanized valleys and high altitude territories, areas often bordering provinces, regions and states. This year ia space is dedicated to short contributions by young authors who have won the AISRe Awards

E-SCAPE New tools and new opportunities for the localization of Expo 2015 general interest services along the Canale Cavour, a backbone of the Milan-Turin urban region

Publication of the Alta Scuola Politecnica project "E-SCAPE. New tools and new opportunities for the localization of Expo 2015 general interest services along the Canale Cavour, a backbone of the Milan-Turin urban region