Why do people subtitle movies? A survey research of the subtitler motivations and practices

In this paper we investigate the reasons why enthusiasts dedicate time and effort to create subtitles for third-party videos shared on-line. Based on results obtained from a survey research with a community of Brazilian subtitlers, we highlight basic features of these enthusiasts as well as their motivations and main objectives. Our observations suggest that this is a volunteering and collaborative activity after all.CNPq (#312148/2014-3); FAPES (#67927378/2015

Investigating the collaborative process of subtitles creation and sharing for videos on the Web

In this paper we concentrate on the study of the collaborative practices of enthusiasts that create and share subtitles for third party videos. Based on preliminary results from interviews with some volunteers, we formalize the subtitles creation and sharing process using a business process management model and compare it with other collaborative and crowdsourcing models. We expect that our initial observations can bring a new understanding of the process and, thus, help in the design of next generation video enriching tools

MediaSync: Handbook on Multimedia Synchronization

This book provides an approachable overview of the most recent advances in the fascinating field of media synchronization (mediasync), gathering contributions from the most representative and influential experts. Understanding the challenges of this field in the current multi-sensory, multi-device, and multi-protocol world is not an easy task. The book revisits the foundations of mediasync, including theoretical frameworks and models, highlights ongoing research efforts, like hybrid broadband broadcast (HBB) delivery and users' perception modeling (i.e., Quality of Experience or QoE), and paves the way for the future (e.g., towards the deployment of multi-sensory and ultra-realistic experiences). Although many advances around mediasync have been devised and deployed, this area of research is getting renewed attention to overcome remaining challenges in the next-generation (heterogeneous and ubiquitous) media ecosystem. Given the significant advances in this research area, its current relevance and the multiple disciplines it involves, the availability of a reference book on mediasync becomes necessary. This book fills the gap in this context. In particular, it addresses key aspects and reviews the most relevant contributions within the mediasync research space, from different perspectives. Mediasync: Handbook on Multimedia Synchronization is the perfect companion for scholars and practitioners that want to acquire strong knowledge about this research area, and also approach the challenges behind ensuring the best mediated experiences, by providing the adequate synchronization between the media elements that constitute these experiences

Deliverable D1.2 Visual, text and audio information analysis for hypervideo, first release

Enriching videos by offering continuative and related information via, e.g., audiostreams, web pages, as well as other videos, is typically hampered by its demand for massive editorial work. While there exist several automatic and semi-automatic methods that analyze audio/video content, one needs to decide which method offers appropriate information for our intended use-case scenarios. We review the technology options for video analysis that we have access to, and describe which training material we opted for to feed our algorithms. For all methods, we offer extensive qualitative and quantitative results, and give an outlook on the next steps within the project

Multimedia Forensics

This book is open access. Media forensics has never been more relevant to societal life. Not only media content represents an ever-increasing share of the data traveling on the net and the preferred communications means for most users, it has also become integral part of most innovative applications in the digital information ecosystem that serves various sectors of society, from the entertainment, to journalism, to politics. Undoubtedly, the advances in deep learning and computational imaging contributed significantly to this outcome. The underlying technologies that drive this trend, however, also pose a profound challenge in establishing trust in what we see, hear, and read, and make media content the preferred target of malicious attacks. In this new threat landscape powered by innovative imaging technologies and sophisticated tools, based on autoencoders and generative adversarial networks, this book fills an important gap. It presents a comprehensive review of state-of-the-art forensics capabilities that relate to media attribution, integrity and authenticity verification, and counter forensics. Its content is developed to provide practitioners, researchers, photo and video enthusiasts, and students a holistic view of the field

Multimedia Forensics

This book is open access. Media forensics has never been more relevant to societal life. Not only media content represents an ever-increasing share of the data traveling on the net and the preferred communications means for most users, it has also become integral part of most innovative applications in the digital information ecosystem that serves various sectors of society, from the entertainment, to journalism, to politics. Undoubtedly, the advances in deep learning and computational imaging contributed significantly to this outcome. The underlying technologies that drive this trend, however, also pose a profound challenge in establishing trust in what we see, hear, and read, and make media content the preferred target of malicious attacks. In this new threat landscape powered by innovative imaging technologies and sophisticated tools, based on autoencoders and generative adversarial networks, this book fills an important gap. It presents a comprehensive review of state-of-the-art forensics capabilities that relate to media attribution, integrity and authenticity verification, and counter forensics. Its content is developed to provide practitioners, researchers, photo and video enthusiasts, and students a holistic view of the field

UX research: uma proposta baseada no desenvolvimento do portal da UA

As a process inherent to the HCI area, UX Research can be seen as a strategy that supports the development of digital products, namely when usability and accessibility guidelines are used to drive the approach adopted. Practices and strategies based on user experience can facilitate understanding the generation of inputs to drive the digital products development as well as support requirements. In this context, this research is focused on the observation of the UX Research process in the development of the new web portal of the University of Aveiro aiming to investigate how UX Research practice can support the methodological approach used, regarding requirements support, identification of typology interface problems, and collection of information towards the continuous improvement of the development of the University of Aveiro (UA) New Portal. For this purpose, a Mixed Methodology was used based on the Grounded Theory framework, by the inductive process of data observation, delimited to the observation of the new News area of the web portal. Data saturation allowed us to know which UX Research sources had more capacity to raise data from the end-users, support requirements, identify types of interface problems, and supply the development of product solutions. As a consequence of the data processing, this research presents a UXR flow proposal to support data collection and engage stakeholders with the end-user needs and interests.Como um processo inerente à área de Interação Humano-Computador (HCI), a Investigação em Experiência do Utilizador (UX Research) pode ser vista como uma estratégia de apoio ao desenvolvimento de produtos digitais quando princípios de usabilidade e acessibilidade são utilizados para impulsionar a abordagem adoptada. Práticas e estratégias baseadas na coleta de dados relativos à experiência do utilizador podem facilitar a geração de inputs para impulsionar desenvolvimento de produtos digitais bem como suportar a defesa de requisitos. Neste contexto, esta investigação está centrada na observação do processo de UX Research no desenvolvimento do novo portal web da Universidade de Aveiro com o objetivo de compreender como a prática da Investigação em UX pode apoiar a abordagem metodológica utilizada, no que diz respeito ao suporte de requisitos, identificação de tipologias de problemas da interface, e recolha de informação para a melhoria contínua do desenvolvimento do Novo Portal da Universidade de Aveiro (UA). Para este fim, foi utilizada uma Metodologia Mista, Qualiquantitativa fundamentada na estrutura de Grounded Theory, em que parte-se do processo indutivo da observação dos dados, delimitado à observação da nova Área de Notícias do portal web. O tratamento estatístico permitiu saber quais as fontes da UX Research com maior capacidade para levantar dados dos utilizadores finais, qual delas mais dá suporte aos requisitos, ajuda na identificação de tipos de problemas da interface, e apoia o desenvolvimento de soluções de produto. Como consequência do processamento de dados, esta investigação apresenta uma proposta de fluxo de Investigação em UX para apoiar a recolha de dados e motivar os envolvidos no processo para atender as necessidades e interesses dos utilizadores finais.Mestrado em Comunicação Multimédi

Experiential Perspectives on Sound and Music for Virtual Reality Technologies

This thesis examines the intersection of sound, music, and virtuality within current and next-generation virtual reality technologies, with a specific focus on exploring the experiential perspectives of users and participants within virtual experiences. The first half of the thesis constructs a new theoretical model for examining intersections of sound and virtual experience. In Chapter 1, a new framework for virtual experience is constructed consisting of three key elements: virtual hardware (e.g., displays, speakers); virtual software (e.g., rules and systems of interaction); and virtual externalities (i.e., physical spaces used for engaging in virtual experiences). Through using and applying this new model, methodical examinations of complex virtual experiences are possible. Chapter 2 examines the second axis of the thesis through constructing an understanding of how sound is designed, implemented, and received within virtual reality. The concept of soundscapes is explored in the context of experiential perspectives, serving as a useful approach for describing received auditory phenomena. Auditory environments are proposed as a new model for exploring how auditory phenomena can be broadcast to audiences. Chapter 3 explores how inauthenticity within sound can impact users in virtual experience and uses authenticity to critically examine challenges surrounding sound in virtual reality. Constructions of authenticity in music performance are used to illustrate how authenticity is constructed within virtual experience. Chapter 4 integrates music into the understanding of auditory phenomena constructed throughout the thesis: music is rarely part of the created world in a virtual experience. Rather, it is typically something which only the audience – as external observers of the created world – can hear. Therefore, music within immersive virtual reality may be challenging as the audience is placed within the created world.The second half of this thesis uses this theoretical model to consider contemporary and future approaches to virtual experiences. Chapter 5 constructs a series of case studies to demonstrate the use of the framework as a trans-medial and intra/inter-contextual tool of analysis. Through use of the framework, varying approaches to implementation of sound and music in virtual reality technologies are considered, which reveals trans-medial commonalities of immersion and engagement with virtual experiences through sound. Chapter 6 examines near-future technologies, including brain-computer interfaces and other full-immersion technologies, to identify key issues in the design and implementation of future virtual experiences and suggest how interdisciplinary collaboration may help to develop solutions to these issues. Chapter 7 considers how the proposed model for virtuality might allow for methodical examination of similar issues within other fields, such as acoustics and architecture, and examines the ethical considerations that may become relevant as virtual technology develops within the 21st Century.This research explores and rationalises theoretical models of virtuality and sound. This permits designers and developers to improve the implementation of sound and music in virtual experiences for the purpose of improving user outcomes.<br/