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A rich media service is a dynamic, interactive collection of multimedia data such as audio, video, graphics, and text. Services range from movies enriched with vector graphic overlays and inter-activity (possibly enhanced with closed captions) to complex multistep services with fluid interaction and different media types at each step. Demand for these(More)
This paper presents the Spatial Representation Description (SRD) feature of the second amendment of MPEG DASH standard part 1, 23009-1:2014 [1]. SRD is an approach for streaming only spatial sub-parts of a video to display devices, in combination with the form of adaptive multi-rate streaming that is intrinsically supported by MPEG DASH. The SRD feature(More)
GPAC is a multimedia framework for research and academic purposes in different aspects of multimedia, with a focus on presentation technologies (graphics, animation and interactivity). The project started in 2003 with the initial goal to develop from scratch, in ANSI C, clean software compliant to the MPEG-4 Systems standard, a small and flexible(More)
The delivery of multimedia content over HTTP and on top of existing Internet infrastructures is becoming the preferred method within heterogeneous environment. The basic design principle is having an intelligent client which selects given and applicable media representations by issuing HTTP requests for individual segments based on the users' context and(More)
In recent years, audio-visual distribution over Internet has witnessed the growing usage of HTTP based delivery systems. While these systems have their drawbacks for some use-cases, they also have many advantages, the most important one being reusing the existing delivery infrastructure such as HTTP servers, proxies and caches. The MPEG group has started(More)
— The seamless access to rich multimedia content on any device and over any network, usually known as Universal Multimedia Access, requires interoperable description tools and adaptation techniques to be developed. To address this, MPEG-21 introduces an adaptation framework, which provides several mechanisms for making adaptation decisions according to(More)
As the newly created standard for interactive television, HbbTV (for Hybrid broadband broadcast TV), is getting traction, the problem of recording TV services takes on new dimensions with interactive and hybrid services. This paper explores the different issues raised by the recording and on-demand playback of broadcast HbbTV services containing interactive(More)
This paper presents a new approach that exploits existing web applications and re-purposes them towards the multi-screen environment. For this purpose, a virtual splitting system is proposed. It consists of a generalized mapping technique that, contrary to previous works, automatically analyzes the application content based on a semantic or a visual(More)
The Huawei/3DLife Grand Challenge Dataset provides multimodal recordings of Salsa dancing, consisting of audiovisual streams along with depth maps and inertial measurements. In this paper, we propose a system for augmented reality-based evaluations of Salsa dancer performances. An essential step for such a system is the automatic temporal synchronisation of(More)
HTTP Streaming is a recent topic in multimedia communications with on-going standardization activities, especially with the MPEG DASH standard which covers on demand and live services. One of the main issues in live services deployment is the reduction of the overall latency. Low or very low latency streaming is still a challenge. In this paper, we push the(More)