From carson@siggraph.org Sun Oct 19 05:26:53 1997 Received: from htg-is.vianet.net (htg-is.vianet.net [165.247.47.18]) by dkuug.dk (8.6.12/8.6.12) with ESMTP id FAA17243 for ; Sun, 19 Oct 1997 05:26:51 +0100 Received: from study.huntleigh.net by htg-is.vianet.net (8.8.4/SMI-4.1) id WAA15527; Sat, 18 Oct 1997 22:28:46 -0600 (MDT) Message-Id: <3.0.32.19971018223222.00a3e9d0@siggraph.cgrg.ohio-state.edu> X-Sender: carson@siggraph.cgrg.ohio-state.edu X-Mailer: Windows Eudora Pro Version 3.0 (32) Date: Sat, 18 Oct 1997 22:32:29 -0600 To: SC24@dkuug.dk From: Steve Carson Subject: ANNOUNCEMENT: VRML-CBF/MPEG4-BIFS joint work Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable >From: Gabriel Taubin >To: , , , , > >Cc: , , > , >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) mpeg4-vrml@vlc.com.au (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) bifs-sys@fzi.de (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 >majordomo@vlc.com.au with the body >subscribe mpeg4-vrml > >MPEG-4: > >AHG on BIFS Scene Description: >Reflector : bifs-sys@fzi.de >Subscription : send message to bifs-sys-request@fzi.de with the command =AE >subscribe =AF (without quotes) in the body of the message. >Unsubscription : send message to bifs-sys-request@fzi.de with the command = =AE >unsubscribe =AF (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. > > --------------------------------------------------------- Steve Carson phone: +1-505-521-7399 GSC Associates Inc. fax: +1-505-521-9321 5272 Redman Road e-mail: carson@siggraph.org Las Cruces, NM 88011 USA ---------------------------------------------------------