INTERNATIONAL
ORGANISATION FOR STANDARDISATION
ISO/IEC/JTC
1/SC 29/WG 11
CODING
OF MOVING PICTURES AND AUDIO
ISO/IEC
JTC 1/SC 29/WG 11
N6085
December
2003 –
|
Source: |
Convenor
of MPEG |
|
|
Status: |
Approved
by WG11 |
|
|
Subject: |
MPEG
Press Release |
|
|
Date: |
December
2003 |
AVC test results validate
superior technology
Waikoloa , Hawaii December 22, 2003
MPEG is pleased to announce the completion of its verification
test activity on AVC. The test report, that is publicly available from MPEG,
shows conclusively that this important new video coding standard significantly
outperforms the coding efficiency of prior standards. For example, the overall
test results showed that the AVC standard achieved a coding efficiency improvement
of 1.5 times or greater in 78% (66 out of 85) of the statistically conclusive
cases, out of which 77% (51 out of 66) show improvements of 2 times or greater.
Several tested cases even showed improvements of 4 times or greater in terms
of the bit rate needed to achieve statistically-equivalent perceptual video
quality.
These test results illustrate the achievement of this recently
completed standard that was developed by the Joint Video Team (JVT), a collaborative
effort consisting of experts from both ISO/IEC's MPEG workgroup and the ITU-T's VCEG organizations.
Using rigorous testing methodology including formal perceptual
quality measurement and extensive statistical analysis, the tests spanned
a broad range of application areas, video resolutions, bit rates, etc., and
compared the capabilities of the new AVC standard to several prior standards
including MPEG-2, MPEG-4 part 2 Simple Profile, and MPEG-4 part 2 Advanced
Simple Profile.
In other MPEG News
MPEG-4 High Quality Parametric Audio Coding
MPEG has completed an exciting addition to its suite of audio
standards. MPEG-4 High Quality Parametric Audio Coding has been elevated to
its final ballot stage. This provides industry with a remarkable advancement
in audio compression. The parametric audio coding technology shows its optimum
performance at bit rates in the range of 24kbit/s stereo. The parametric decoder
inherently supports pitch and tempo scaling, the latter being of particular
interest for spoken book and language learning applications.
The parametric audio coding technology contains a highly
efficient tool to code the stereo image. The standard enables this parametric
stereo coding tool to be combined in a backwards compatible fashion with High
Efficiency AAC for usage in the low bit-rate range, where it offers an increase
of 33% in coding gain over HE-AAC.
MPEG-21
At the 67th meeting, MPEG promoted MPEG-21 Digital Item Adaptation
to its final ballot stage. When
completed this standard will specify metadata information that facilitates
the adaptation of digital items and media resources for different MPEG-21
usage environments.
MPEG also issued a first ballot on MPEG-21 Digital Item Processing.
This standard will specify basic operators and methods and a language
allowing the functional operations to be carried out on digital items by MPEG-21
peers.
_____________________________________________________________
Details of how to obtain MPEG’s Calls for Proposal’s (CfPs) and other public information is shown below.
Call for Proposals on MPEG Graphics API
MPEG believes
it is important to standardize an application programming interface (API)
for efficient rendering of synthetic objects that comply with the requirements
found in the annex of this CFP. Applications for broadcasting purposes, multi-channel content
production and distribution, surveillance-and-storage, and layered protection
of content. Proposals are due by
Call for Proposals on Event Reporting
This Call addresses technology for Event Reporting as
part of the MPEG-21 multimedia framework. The relationship between Event Reporting
and the other components of the framework is addressed; however, the
content and implementation of these other components is outside the scope
of this call. The scope of this
CfP includes the requirements needed in various applications
using Event Reporting. The
timeline and further details of this call are provided as indicated below.
Call For Proposals
on Scalable Video Coding Technology
MPEG has identified
a set of applications
that require scalable and reliable video coding technologies, such as,