نتایج جستجو برای: mpeg

تعداد نتایج: 8267  

Journal: :CoRR 2005
Jeroen Bekaert Xiaoming Liu Herbert Van de Sompel

Various efforts aimed at representing digital assets have emerged from several communities over the last years, including the Metadata Encoding and Transmission Standard (METS), the IMS Content Packaging (IMS-CP) XML Binding and the XML Formatted Data Units (XFDU). The MPEG-21 Digital Item Declaration (MPEG-21 DID) is another approach that can be used for the representation of digital assets in...

2001
Jane Hunter

This paper presents an overview of the MPEG-7 Description Definition Language (DDL). The DDL provides the syntactic rules for creating, combining, extending and refining MPEG-7 Descriptors (Ds) and Description Schemes (DSs). In the interests of interoperability, the W3C’s XML Schema language, with the addition of certain MPEG-7-specific extensions, has been chosen as the DDL. This paper describ...

2007
Raphaël Troncy Òscar Celma Suzanne Little Chrisa Tsinaraki

MPEG-7 can be used to create complex and comprehensive metadata descriptions of multimedia content. Since MPEG-7 is defined in terms of an XML schema, the semantics of its elements have no formal grounding. In addition, certain features can be described in multiple ways. In order to make MPEG-7 interoperable with domain-specific ontologies, the semantics of the MPEG-7 descriptors also need to b...

Journal: :RFC 2013
Rachel Huang Qin Wu Hitoshi Asaeda Glen Zorn

An MPEG-2 Transport Stream (TS) is a standard container format used in the transmission and storage of multimedia data. Unicast/ multicast MPEG-2 TS over RTP is widely deployed in IPTV systems. This document defines an RTP Control Protocol (RTCP) Extended Report (XR) block that allows the reporting of MPEG-2 TS decodability statistics metrics related to transmissions of MPEG-2 TS over RTP. The ...

1999
Tolga K. Capin Daniel Thalmann

The MPEG-4 includes support not only for natural video and audio, but also for synthetic graphics and sounds. MPEG-4 Version 2 includes the representation of human bodies in addition to faces. In the MPEG-4 Version 2 Committee Draft, Body Animation Parameters (BAPs) and Body Definition Parameters (BDPs) allow virtual bodies to be streamed in very low bit rates and provide deformation of body su...

Journal: :The Journal of The Institute of Image Information and Television Engineers 2011

2007
Yong Rui

Unlike early versions of MPEG, MPEG-7 is shifting from a data-compression standard to a multimedia content description standard. As a result, it will have much broader implications for the human-computer interaction research. There are countless ways that the MPEG-7 metadata description framework can enhance users’ experiences in accessing multimedia content. In this paper, we will report the a...

2013
Manas Arora Neha Maurya

MPEG stands for MOVING PICTURE EXPERTS GROUP is a standard for video and audio compression for eliminating the noisy signals from the transmitted signals from the satellite. Audio compression is a basic method defined under MPEG-1 and MPEG-4 which by coding techniques compress audio signals to filter out undesired signals .This paper focuses on the MPEG technology, need and coding technique for...

1997
Christopher A. Lanciani Ronald W. Schafer

The MPEG audio standard has recently gained popularity for compressing high quality audio signals. In general, modifying or mixing MPEG signals requires decoding the MPEG signals into time-domain signals, processing the time-domain signals, and re-encoding the processed signals. In this paper, we present a psychoacoustically-based method for processing MPEG signals that eliminates signiicant po...

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