It is recalled that the source code of both decoder AND encoder should be provided as part of the Reference Software for all technologies to be adopted in MPEG standards. Moreover, not providing the complete software for a published technology shall conduct to the removal of the corresponding technical specification from the standard.
2.1.2Web site
OrangeLabs proposed a new version of the web site, now available at www.mpeg-3dgc.com. The goal of the web site is to disseminate the group activities (documents, software and demonstration), to maintain the FAQ and to be active in providing answers through the use of the Forum. 3DGC contributors are kindly asked to check the web-site and provide comments.
3AFX (14496-16) related activities
3.1Experiments
3.1.1CE1. Mesh Animation Compression
Title
Low-complexity approach for static mesh compression
Authors
Khaled Mamou, Titus Zaharia, Marius Preda
Françoise Prêteux
Summary
- TFAN: encoding the connectivity based on triangle fan decomposition of a mesh
- advantages: low complexity
- comparison of the performances with 3DMC, 6% better in compression performances and 50% in decoding time
Resolution
This technology together with the one presented during the 82nd Meeting shows evidences that mesh compression may be performed with lower complexity than current tools.
A call for proposal will be issued this meeting. The requirements document will be updated to address low complexity.
3.1.2Frame-based animation compression
Title
GNB comments on ISO/IEC 14496-16:2006/PDAM 2 (FAMC)
Authors
Nikolce Stefanoski, Jörn Ostermann
Summary
The contribution addresses the problem of FAMC compression for temporal scalability. When using the delta prediction mode, it is possible than the variable used for prediction belongs to a frame that is not decoded (due to sub sampling in time). The contribution proposes an identity prediction (as an alternative to existent delta prediction)
Resolution
Resolution:
It was identified that prediction always takes place with respect to the static mesh. To clarify this aspect, the specification was updated with en explicative note.
Title
FAMC decoder conformance
Authors
Khaled Mamou, Titus Zaharia, Françoise Prêteux
Summary
The contribution proposes a set of MP4 formatted files showing FAMC functionalities and describe the testing condition for them.
Resolution
Adopt the set of files for conformance
Title
FAMC integration into the MPEG-4 RefSoft
Authors
Khaled Mamou, Titus Zaharia, Marius Preda, Françoise Prêteux
Summary
The contribution presents the implementation of FAMC in IM1 indicating the supported functionalities. A demonstration of the reference software was shown.
Resolution
Adopt the software provided as the RefSoft for FAMC.
It is recommended to upload the software on the SVN when the latter will be ready.
Since providing the encoder in source code is one of the conditions of accepting MPEG technologies, it is also requested to FAMC contributors to provide the FAMC encoder.
3.1.3Scene partitioning
SP will be followed as a joint activity between Systems and 3DGC. The technology will be integrated in Part 11.
3.2Profiles
3.2.1Proposal for 3D MultiResolution Profile
Title
Multi-Resolution Profile AMD 3 and Conformance
Authors
Patrick Gioia
Summary
The contribution shows the status of Conformance for AMD3. Some editorial changes were performed. Some of the old bitstreams (3DMC and BBA) are not working in the last version of the IM1 player
Resolution
Once the ReferenceSoftware is available on the SVN, INT and Samsung will verify the broken bitstreams
3.3Maintenance
3.3.13DMC Extension correction for support of multiple attribute per vertex
Title
KNB Comment on 14496-16:2006/AMD1.Corr1 (3D Mesh Coding Extension Correction)
Authors
Jeong-Hwan Ahn, Daiyong Kim, Euee S. Jang
Summary
In order to preserve the backward compatibility, it is proposed to use an existing variable (function_type) and extend its semantics.
Resolution
Accepted
3.3.2AFX 3rd Edition
The document was updated during the week. However, editing is not finished (an editing period of 2 weeks was accepted).
3.4Dataset and benchmarking
Title
Online platform for 3D graphics compression benchmarking
Authors
Benoit Le Bonhomme, Marius Preda, Françoise Preteux
Summary
The contribution introduces an online platform able to integrate encoder and decoder libraries for 3D graphics compression. The advantages of using it will be the use of the same hardware for executing the programs, the access to a large database and the rapidness in obtaining the curves and other quantitative measures.
Resolution
Use the platform for benchmarking the tools submitted for standardization.
Title
Table of 3D models in the MPEG 3DGC repository
Authors
Sikyung Kim, Euee S. Jang
Summary
The contribution consists in a a table presenting the specificities of each file (attributes per vertex, …) available in the MPEG database.
Resolution
Upload the table on the repository web site.
3.5Software
Title
RefSoftware report for AFX tools
Authors
Francisco Morán Burgos
Summary
A document with the status of encoders for all the 3DGC bitstreams
Resolution
Include the document in the SVN repository, in the Reference Software section
3.6Promotions
Title
3D graphics player for N93 and N95
Authors
Ivica Arsov, Marius Preda, Francoise Preteux
Summary
The contribution presents an implementation of the MPEG-4 3D Graphics player for Symbian 9, able to decode and render static and animated objects
Resolution
-
3.7Future
3.7.1CfP
Call for Proposal for Low Complexity 3D Mesh Compression. More information are provided in the output document w9651.
3.7.2Metaverse
A presentation was done in Joint meeting with Systems and Requirements. No resolution yet.
43D Graphics Compression Model (14496-25) activities
4.1Textual specification
The text was reviewed and a study was issued as the output document.
4.2Software and conformance
Title
Software Implementation for P25
Authors
Blagica Jovanova, Marius Preda, Francoise Preteux
Summary
Contribution on an implementation of the P25 for COLLADA, including the encoder (parser, 3DMCE, BBA, JP2K and GZIP encoders, multiplexer) and the decoder.
Resolution
Accept the software as the reference software for P25. To upload it on the SVN.
Title
3DGC Conformance dataset for P25
Authors
Blagica Jovanova, Marius Preda, Francoise Preteux
Summary
Contribution on a set of files implementing several functionalities (geometry, texture and animation)
Resolution
Accept the files as Conformance Test for P25. To upload on the Conformance directory of the SVN.
5Output documents and Resolutions of 3DGC
5.1Part 4 Conformance testing
5.1.1The 3DGC subgroup recommends approval of the following documents
No.
Title
TBP
Available
14496-4 Conformance testing
9642
Study on PDAM of ISO/IEC 14496-4:2004 AMD32 (FAMC Conformance)
No
08/01/18
9643
Study on PDAM of ISO/IEC 14496-4:2004 AMD33 (MultiResolution Profile Conformance)
No
08/01/18
9644
ISO/IEC 14496-4:2004 PDAM 34 (3DGCM Conformance)
No
08/01/18
5.1.2The 3DGC subgroup recommends nominating Mark Callow (HI Corporation) as project editor for ISO/IEC 14496-4:2004/Amd.16.
5.2Part 5 Reference Software
5.2.1The 3DGC subgroup recommends approval of the following documents
No.
Title
TBP
Available
14496-5 Reference Software
9645
ISO/IEC 14496-5 PDAM 22 (3DGCM RefSoft)
No
08/01/18
5.3Part 16 Animation Framework eXtension (AFX)
5.3.1The 3DGC subgroup recommends approval of the following documents
No.
Title
TBP
Available
14496-16 Animation Framework eXtension (AFX)
9646
Study of ISO/IEC 14496-16:2006/AMD1/DCOR1
No
08/01/18
9647
DoC on ISO/IEC 14496-16:2006/PDAM2 (Frame-based Animated Mesh Compression)
No
08/01/18
9648
Text of ISO/IEC 14496-16:2006/FPDAM2 (Frame-based Animated Mesh Compression)
Yes
08/01/18
9649
WD2.0 of AFX 3rd Edition
No
08/02/01
9650
Requirements for low-complexity 3D mesh compression
Yes
08/01/18
9651
CfP for low-complexity 3D mesh compression
Yes
08/01/18
5.3.2The 3DGC subgroup thanks FNB and GNB for their comments on ISO/IEC 14496-16:2006/Amd.2.
5.3.3The 3DGC subgroup recommends the publication of all Scene Partitioning related technologies in Part 11 of ISO/IEC 14496 and its removal from Part 16, hence conducting the removal of Part 16 Amd.4.
5.3.4The 3DGC subgroup thanks Samsung AIT for the creation and maintenance of the first version of the MPEG-3DGC web site and also thanks Orange Labs for taking over this project.
5.4Part 25 3D Graphics Compression Model
5.4.1The 3DGC subgroup recommends approval of the following documents
No.
Title
TBP
Available
14496-253D Graphics Compression Model
9652
Study of CD of ISO/IEC 14496-25
No
08/01/18
5.5Establishment of 3DGC Ad-Hoc Groups
N9661
AHG on 3DGC documents and software maintenance
Mandate:
1. Coordinate 3DGC related conformance and reference software
2. Maintain and edit 3DGC documents
3. Coordinate editing of the www.mpeg-3dgc.com web-site
