A novel objective approach to assessing the relative perceptual quality of MPEG-encoded video sequences is presented. Quality comparison of the original and filtered MPEG-encoded video sequences is performed directly in the frequency domain. Experimental results show a very good correlation between the objective quality measurement and the human subjective perception. This objective approach pr...

We describe the architecture and key features of the MPEG-4 Systems specification, as well as the encoding methodology of its various components: scene description and BIFS, animation streams, object descriptors, object content infonnation, as well as delivery and multiplexing. We also describe the MPEG-4 reference software as well as our own prototype software for MPEG-4 authoring, streaming, ...

This paper proposes a phase assignment algorithm “Silent Wave Algorithm (SWA)” for real-time MPEG traffic in ATM networks. Our algorithm decides when a new MPEG source should begin to transmit based on its notification parameters and traffic measurement of ongoing connections. Simulation results show that it is hard to accommodate MPEG traffic effectively without any control of phase assignment...

The emerging ISO/IEC MPEG-7 and MPEG-21 multimedia standards use XML Schema for digital content descriptions and digital item declarations. They have posed an interesting challenge to XML query language design. The paper shows certain critical query specification issues for MPEG-7 and MPEG-21 XML documents and illustrates a logic method to handle the limitations in current text-oriented XML que...

This document describes Real-time Transport Protocol (RTP) payload formats for carrying each of MPEG-4 Audio and MPEG-4 Visual bitstreams without using MPEG-4 Systems. This document obsoletes RFC 3016. It contains a summary of changes from RFC 3016 and discusses backward compatibility to RFC 3016. It is a necessary revision of RFC 3016 in order to correct misalignments with the 3GPP Packetswitc...

This memo describes extensions for the RTP payload format defined in RFC 3640 for the transport of MPEG Surround multi-channel audio. Additional Media Type parameters are defined to signal backwardscompatible transmission inside an MPEG-4 Audio elementary stream. In addition, a layered transmission scheme that doesn’t use the MPEG-4 systems framework is presented to transport an MPEG Surround e...

Selective encryption of visual data and especially MPEG has attracted a considerable number of researchers in recent years. Scalable visual formats are offering additional functionality, which is of great benefit for streaming and networking applications. The MPEG-2 and MPEG-4 standards provide a scalability profile in which a resolution scalable mode is specified. In this paper we evaluate a s...

The authors give a brief account of their combined 7+ years in multimedia standardization, namely in the MPEG arena. They discuss specifics on musical content description in MPEG-7 Audio and other items relevant to Music Information Retrieval among the MPEG-7 Multimedia Description Schemes. In the presentation, they will give a historical overview of the MPEG-7 standard, its motivations, and wh...

Zusammenfassung Neben einer hohen Kompressionseffizienz und einer guten Fehlerrobustheit stellt MPEG-4 Video als einziger internationaler Standard objektbasierte Funktionalitäten für Anwendungen zur Verfügung. In diesem Beitrag werden die Ziele und Techniken der MPEG-4 objektbasierten Kodierung beschrieben. Summary MPEG-4 is the first international standard that supports applications with objec...

The paper discusses the problem of video transmission in an IP network. authors consider ability using most popular codecs that use both MPEG2 Transport Stream and Dynamic Adaptive Streaming over Hypertext Transfer Protocol (DASH). main emphasis was given to ensuring quality service assessment methods, taking into account not only service- or network provider’s point view but also end user’s pe...