Metadata driven adaptation in the ADMITS project

Böszörményi, László; Hellwagner, Hermann; Kosch, Harald; Libsie, Mulugeta; Podlipnig, Stefan

doi:10.1016/s0923-5965(03)00062-6

Cited by 35 publications

(10 citation statements)

References 13 publications

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“…A first solution to the adaptation problem is the use of (offline) variations [46,47], covering a number of predefined versions of the content that are generated and stored prior to being consumed by users. Figure 2 shows an example of adapted versions available as offline variations (e.g.…”

Section: Variations and Transcodingmentioning

confidence: 99%

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Combining MPEG Tools to Generate Video Summaries Adapted to the Terminal and Network

Herranz

Martínez

2012

The Computer Journal

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Moving picture experts group (MPEG) standards provide tools for a broad range of purposes, covering from coding to metadata description tools. In this paper, the combined use of tools from different MPEG standards is described in the context of a video summarization application. The main objective of the framework is the efficient generation of summaries, integrated with their adaptation to the user's terminal and network. The MPEG-4 Scalable Video Coding specification is used for fast adaptation and summary bitstream generation. MPEG-21 digital item adaptation tools are used to describe metadata related to the user's terminal and network. MPEG-7 tools are used to describe the summary. Finally, the framework is compared with alternative approaches (variations and transcoding), in terms of efficiency, rate-distortion performance and other aspects. Downloaded from FIGURE 7. Low-level extraction process: (a) IDR AUs (no header update) and (b) I AUs (header update).

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Section: Variations and Transcodingmentioning

confidence: 99%

“…MPEG-7 MDS defines the Variation description scheme to describe each of these elements (e.g. different bitrate, spatial or temporal resolution) [44,46,47]. Each variation is created and encoded prior to the interaction with users.…”

Section: Comparison Of Architecturesmentioning

confidence: 99%

Combining MPEG Tools to Generate Video Summaries Adapted to the Terminal and Network

Herranz

Martínez

2012

The Computer Journal

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“…Unfortunately, only few projects (Steiger et al, 2003) have exploited the extended metadata annotation possibilities available with the new MPEG standards. The ViTooKi video tool kit project (http://vitooki.sourceforge.net/) is a representative example (Schojer et al, 2003;Böszörmenyi et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Intelligent multimedia engines for multimedia content adaptation

Kanellopoulos

2010

IJMIS

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Current end user devices are not able to display all kind of multimedia data. However, this does not conform to the vision of universal multimedia access (UMA). Server side resource adaptation can solve some of the problems caused by heterogeneity because the multimedia resources are transformed sufficiently such that they fit the consumer's preferences and usage environment before they are sent to client. MPEG-21 is the ISO/IEC standard that defines a normative open framework for multimedia delivery and consumption concerning all parties in the delivery and consumption chain. However, the implementation of an intelligent adaptation engine (AE) capable of determining the required transformations is intentionally left to the tool vendors. An AE, based on the MPEG-21 digital item adaptation (DIA) framework, has an adaptation decision-taking engine (ADTE). In this paper, we present research efforts on ADTEs and consider how intelligent ADTEs can be designed and developed.

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“…Certaines se concentrent sur l'adaptation de la logique de service [1], [2], [3]; celle-ci peut se faire en agissant sur les paramètres d'un service, ou si le service est conçu comme un assemblage de composants, en modifiant cet assemblage par ajout, retrait ou remplacement de composants ; l'action peut également se faire sur la distribution des composants. D'autres architectures traitent l'adaptation de flux multimédia grâce à des techniques d'adaptation concernant la description de format et de contenu [4], [5], [6]. Notre approche vise à regrouper les deux techniques d'adaptation en une seule et même architecture.…”

Section: Introductionunclassified