Subject: ANNOUNCEMENT: VRML-CBF/MPEG4-BIFS joint work

From: Steve Carson <[email-masked]>
Date: Sat, 18 Oct 1997 22:32:29 -0600

>From: Gabriel Taubin <[email-masked]>
>To: <[email-masked]>, <[email-masked]>, <[email-masked]>,
<[email-masked]>,
>        <[email-masked]>
>Cc: <[email-masked]>, <[email-masked]>,
>        <[email-masked]>, <[email-masked]>
>Subject: ANNOUNCEMENT: VRML-CBF/MPEG4-BIFS joint work
>Date: Fri, 17 Oct 1997 18:19:10 -0400
>
>The purpose of this message is to announce the commencement of joint work
>among the VRML Consortium,  ISO/IEC JTC 1/ SC 29 / WG 11 (MPEG-4), and
>ISO/IEC JTC 1/ SC 24 (Computer Graphics and Image Processing) to explore
>the feasibility of a common binary format for MPEG-4 Binary Format for
>Scenes (BIFS) and VRML.
>
>Leaders/Editors:
>----------------
>
>Julien Signes   , MPEG-4, BIFS
>Touradj Ebrahimi, MPEG-4, BIFS
>Gabriel Taubin  , VRML Consortium, Compressed Binary Format WG
>Bill Horn       , VRML Consortium, Compressed Binary Format WG
>
>Goals of the work:
>------------------
>
>1) determine the feasibility of developing a single binary encoding that
>meets the needs of both MPEG-4 BIFS and VRML for a binary format that
>includes compression;
>
>2) if the answer to (1) is affirmative, develop a Working Draft encoding
>based on the current BIFS and VRML CBF drafts;
>
>3) if the answer to (1) is affirmative, draft a plan for cooperative work
>in the area of compressed binary formats that includes participation by
>JTC1 SC 29, the VRML Consortium and JTC 1/ SC 24.
>
>Scope of the work:
>------------------
>
>Work on a common compressed binary format is likely to proceed in stages.
>The initial focus will probably be on defining the token stream and on the
>best encoding of that stream that balances compactness with ease of
>generation and of interpretation. A later phase is likely to address
>further compression of specific elements of the format such as the scene
>graph and of geometric meshes. The initial work should recognize the future
>evolution and provide for it in an upwards compatible manner.
>
>Places for the work:
>--------------------
>
>All messages should be sent simultaneously to each of the following
>reflectors:
>
>1) [email-masked] (The VRML Consortium's VRML/MPEG4 Liaison Working
>Group reflector, as a substitute for the cbf-vrml reflector which is not
>yet fully operational);
>
>2) [email-masked] (the MPEG-4 Binary Format for Scenes Reflector)
>
>Please start the message subject with this tag:  "Subject : BF :"
>
>
>Joining the reflectors:
>-----------------------
>
>VRML Consortium:
>
>VRML/MPEG4 Liaison Working Group
>You can subscribe to the mailing list by sending email to
><mailto:[email-masked]>[email-masked] with the body
>subscribe mpeg4-vrml
>
>MPEG-4:
>
>AHG on BIFS Scene Description:
>Reflector : [email-masked]
>Subscription : send message to [email-masked] with the command ®
>subscribe ¯ (without quotes) in the body of the message.
>Unsubscription : send message to [email-masked] with the command ®
>unsubscribe ¯ (without quotes) in the body of the message, followed by the
>subscription address.
>
>Base Documents:
>---------------
>
>VRML-CBF:
>
>Draft 5 of VRML-CBF can be found at
>http://www.research.ibm.com/vrml/binary
>Go to "Specification" and after that to "Draft 5".
>
>MPEG-4 BIFS:
>
>Information will be circulated shortly on how to obtain a copy of the
>relevant version of this document.
>
>

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Steve Carson                 phone:   +1-505-521-7399
GSC Associates Inc.          fax:     +1-505-521-9321
5272 Redman Road             e-mail:  [email-masked]
Las Cruces, NM 88011 USA
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