Search results for "Video"

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2007

Hierarchical Parallelization of an H.264/AVC Video Encoder

2006

Last generation video encoding standards increase computing demands in order to reach the limits on compression efficiency. This is particularly the case of H.264/AVC specification that is gaining interest in industry. We are interested in applying parallel processing to H.264 encoders in order to fulfill the computation requirements imposed by stressing applications like video on demand, videoconference, live broadcast, etc. Given a delivered video quality and bit rate, the main complexity parameters are image resolution, frame rate and latency. These parameters can still be pushed forward in such a way that special purpose hardware solutions are not available. Parallel processing based on…

Security, QoS and self-management within an end-to-end Cloud Computing environment

2015

Today, Cloud Networking is one of the recent research areas within the Cloud Computing research communities. The main challenges of Cloud Networking concern Quality of Service (QoS) and security guarantee as well as its management in conformance with a corresponding Service Level Agreement (SLA). In this thesis, we propose a framework for resource allocation according to an end-to-end SLA established between a Cloud Service User (CSU) and several Cloud Service Providers (CSPs) within a Cloud Networking environment (Inter-Cloud Broker and Federation architectures). We focus on NaaS and IaaS Cloud services. Then, we propose the self-establishing of several kinds of SLAs and the self-managemen…

Role of videofluorography with water siphon test in otolaryngologic presentations of GERD

2004

In recent years digital videofluorography (VFG) with water siphon test (WST) has been proposed just for diagnosing hiatal hernia and/or gastroesophageal reflux. PATIENTS AND METHODS: Fifteen patients undergone Laparoscopic Nissen (LN) for complicated GERD associated to hiatal hernia, were referred for VFG and WST in order to evaluate the functional results of surgery. At one-month videofluorographic control thirteen patients had just a minimal prolonged esophageal transit time but only six of these had an early postoperative dysphagia, whereas at six months control the prolonged esophageal transit time was present in three patients two of which complained a very light dysphagia. One patient…

Videofluorography swallow study of patients with systemic sclerosis

2009

PURPOSE: This study was undertaken to evaluate the role of the videofluorographic (VFG) swallow study in patients with systemic sclerosis. MATERIALS AND METHODS: Over a 23-month period, 45 women (mean age 58 years, range 27-76 years) with a known diagnosis of systemic sclerosis and a history of dysphagia underwent a dynamic and morphological study of the oral, pharyngeal and oesophageal phases of swallowing with videofluorography. All examinations were performed with a remote-controlled digital C-arm device with 16-in image intensifier, 0.6- to 1.2-mm focal spot range and maximum tube voltage of 150 kVp in fluorography and 120 kVp in fluoroscopy. Cineradiographic sequences were acquired for…

VIDEOGAMES: AN INCLUSIVE LEARNING ENVIRONMENT A MEDIA EDUCATION PROJECT IN PRIMARY SCHOOL

2015

Many studies say that video game play is beginning to threaten traditional home entertainment choices (especially television), posing a very real threat to other media revenue streams. The reasons for video games growth in sales and popularity can be credited to the growth in the popularity and the technical innovations in the mobile sector. Attempting to support videogames for education and learning purposes has prompted considerable attention over the last years. The great variety of digital games available has provided much for educators and researchers to explore, resulting in intense disputes that many games have benefits both in and out of the classroom for learners of primary school.…

Acceptance of Branded Video Games (Advergames)

2014

Advergames are free, branded video games used by advertisers to target audiences with marketing communications in a playful, interactive, and engaging way. Despite their advantages for consumers (i.e., free entertainment content), advergames can also cause concern in consumers (i.e., advertising clutter), making it necessary to explore consumers' attitudes that lead to acceptance of advergames. This chapter analyses the factors that lead consumers to accept advergames as an advertising format analyzing three variables related to consumer-media relationships: 1) consumer attitude toward advertising, 2) consumer attitude toward the presence of brands in video games, and 3) previous experience…

Videojugar puede disminuir la violencia.

2018

Videojugar contribuye al control, percepción y disminución de la violencia. Es una hipótesis a corroborar en este ensayo planteado desde la neurociencia en el que se describen en primer lugar los conceptos de agresión y violencia. A continuación se estudian los sustratos de la violencia que para Muñoz (2010) tienen que ver en primer lugar con las emociones y en segundo con el temperamento. Seguidamente los mecanismos neurobiológicos que podrían conducir a la agresión y violencia y las consecuencias de una baja autoestima. Por último se describe cómo los videojuegos pueden contribuir a crear las condiciones sobre el cerebro para el control de la agresividad y la violencia. Videogaming contri…

Kritisches Feedback bei internationalen Videokonferenzen in der DaF-Lehrendenbildung

2022

Der Beitrag beschäftigt sich damit, wie DaF-Lehrende in internationalen Videokonferenzen untereinander negatives oder kritisches Feedback aushandeln. Nach einem kurzen Überblick zum Forschungsstand zu negativem bzw. kritischem Feedback in der Lehrendenbildung wird das Konzept von kollegialem Feedback im Erasmus+-Projekt LEELU (www.leelu.eu) dargelegt, das die Datengrundlage für die vorliegende empirische Untersuchung liefert. Für die Analyse wurden aus dem Videomaterial, das im Rahmen der Bildungsmaßnahme entstanden ist, Sequenzen ausgewählt und einer multimodalen Mikroanalyse unterzogen. Ziel der Studie ist es offenzulegen, wie Fremdsprachenlehrende mit unterschiedlichen Kenntnissen in der…

Schweigen in Videokonferenzen: Vom Umgang mit Störungen in Online-Besprechungen

2020

This paper deals with silence in video-based discourse, which includes pauses and delays. The data of the study is provided by international video conferences in which six in-service teachers and six pre-service teachers from three countries (Italy, the Netherlands, Hungary) together with a moderator and an assistent discuss sequences of their lessons. These discussions are part of a teacher training progrmme as conceived and implemented in the Erasmus+ project LEELU (www.leelu.eu). The focus of the present study is to analyse through a multimodal approach how the above-mentioned moments of silence co-constitute the video-based interaction, and how the discourse is built up with the other m…