Temporal Video Transcoding Based on Frame Complexity Analysis for Mobile Video Communication

2013 ◽  
Vol 59 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Chia-Hung Yeh ◽  
Shu-Jhen Fan Jiang ◽  
Chih-Yang Lin ◽  
Mei-Juan Chen
Keyword(s):  
Complexity Analysis ◽  
Video Communication ◽  
Video Transcoding ◽  
Mobile Video

Mobile Video Transcoding Approaches and Challenges

2007 ◽  
pp. 627-631
Author(s):  
A. Ahmad
Keyword(s):  
Video Transcoding ◽  
Mobile Multimedia ◽  
Mobile Video

This article examines the challenges and limitations that face video transcoding schemes in a mobile multimedia transporting network. Then we explore different approaches for video transcoding schemes in a mobile multimedia transporting network.

Primary and secondary context in mobile video communication

2007 ◽  
Vol 12 (4) ◽  
pp. 281-288 ◽  
Author(s):  
Erika Reponen ◽  
Pertti Huuskonen ◽  
Kristijan Mihalic
Keyword(s):  
Video Communication ◽  
Mobile Video

Scalable portrait video for mobile video communication

2003 ◽  
Vol 13 (5) ◽  
pp. 376-384 ◽  
Author(s):  
Jiang Li ◽  
Keman Yu ◽  
Tielin He ◽  
Yunfeng Lin ◽  
Shipeng Li ◽  
...  
Keyword(s):  
Video Communication ◽  
Mobile Video

Low Complexity HEVC INTRA Coding for High-Quality Mobile Video Communication

2015 ◽  
Vol 11 (6) ◽  
pp. 1492-1504 ◽  
Author(s):  
Yun Zhang ◽  
Sam Kwong ◽  
Guangjun Zhang ◽  
Zhaoqing Pan ◽  
Hui Yuan ◽  
...  
Keyword(s):  
Low Complexity ◽  
Video Communication ◽  
Mobile Video ◽  
High Quality ◽  
Intra Coding

scholarly journals Energy-Reduction Offloading Technique for Streaming Media Servers

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Yeongpil Cho ◽  
Oparin Mikhail ◽  
Yunheung Paek ◽  
Kwangman Ko
Keyword(s):  
Mobile Devices ◽  
Streaming Media ◽  
Video Stream ◽  
Video Data ◽  
Multimedia Data ◽  
Video Transcoding ◽  
Mobile Video ◽  
Tablet Pcs ◽  
Additional Burden ◽  
Media Server

Recent growth in popularity of mobile video services raises a demand for one of the most popular and convenient methods of delivering multimedia data, video streaming. However, heterogeneity of currently existing mobile devices involves an issue of separate video transcoding for each type of mobile devices such as smartphones, tablet PCs, and smart TVs. As a result additional burden comes to media servers, which pretranscode multimedia data for number of clients. Regarding even higher increase of video data in the Internet in the future, the problem of media servers overload is impending. To struggle against the problem an offloading method is introduced in this paper. By the use of SorTube offloading framework video transcoding process is shifted from the centralized media server to the local offloading server. Thus, clients can receive personally customized video stream; meanwhile the overload of centralized servers is reduced.

scholarly journals An empirical study on the user's context in mobile videoconferencing devices

2015 ◽  
Vol Volume 3, Issue 2, Special... (Special Issue "the best...) ◽  
Author(s):  
Ignacio Calvo ◽  
Tomas Dorta ◽  
Jean-Marc Robert
Keyword(s):  
User Interface ◽  
Empirical Study ◽  
Video Communication ◽  
Mobile Video ◽  
Mobile Interfaces ◽  
Sense Of Presence ◽  
International Audience ◽  
The Rich ◽  
Mobile Context ◽  
Groupes De Discussion

International audience This paper presents an exploratory empirical study on the user's context in mobile videoconferencing in order to improve the user interface of mobile video devices. Through the rich exchange of information, mobile video communication can provide a better sense of presence than other means of communication. Yet the current mobile interfaces lack the flexibility required to be creative and more meaningful in a videoconference exchange. We conducted observations with 16 participants in three activities where their conversations, reactions and behaviours were observed. Two focus groups were used to identify habits formed from regular use. Results suggest an important difference between the use of the front-facing or back-facing camera and the importance of offering tools that provide more control over the video exchange. From theses results, the study proposes several design recommendations for mobile video communication interfaces in order to support the construction of the user's mobile context. Ce document présente une étude empirique sur l'utilisation de la vidéoconférence mobile et le contexte de l'usager afin de proposer des lignes directrices pour la conception des interfaces des dispositifs de communication vidéo mobile. Grâce à un échange riche d'informations, ce type de communication peut amener un sentiment de présence fort, mais les interfaces actuelles manquent de flexibilité pour permettre aux usagers d'être créatifs et pour avoir des échanges plus significatifs dans une vidéoconférence. Nous avons mené des observations avec 16 participants dans trois activités où leurs conversations, les réactions et les comportements ont été observés. Deux groupes de discussion ont aussi servi pour identifier les habitudes formées à partir d'une utilisation régulière. Les résultats suggèrent une différence importante entre l'utilisation de la caméra de face ou de dos, le type de comportement, et la nécessité de fournir des outils qui offrent plus de contrôle sur l'échange dans la conversation. D'après les résultats, l'étude propose plusieurs lignes directrices de conception pour les interfaces de communication vidéo mobiles, concernant la construction du contexte mobile de l'utilisateur.

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