International organisation for standardisation organisation internationale de normalisation

2General issues

2.1General discussion

2.1.1Reference Software

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.

Currently all the AFX tools published in the third edition are supported by both encoder and decoder implementation.

2.1.2Web site

OrangeLabs announced interrupting the maintenance of the group web-site. A call for volunteers is now issued. In the meantime 3DGC contributors are asked to check the web-site and provide comments on the current version of the web-site.

3Current Voting

Document title	DoC	Editor of DoC
none

4General 3DG related activities

4.1AhG on 3DG activities

Title	Report of AHG on 3DGC documents, experiments and software maintenance
Authors	Francisco Moran
Resolution	accepted

Title	Ad Hoc Group on Multi-Resolution 3D mesh Coding
Authors	Khaled Mamou, Minsu Ahn, Xiangyang Ji
Resolution	accepted

4.2Promotions

4.2.1Web Site

Title	Status of www.mpeg-3dgc.com
Authors
Summary	The web site is not more maintained by OrangeLab.
Resolution	Action Point: Transfer the web-site to other location and call for volunteers for maintenance.

4.3Joint activities

4.3.1MPEG-V - Information Exchange with Virtual Worlds (formally Metaverse)

m18253	Additional Use Cases for MPEG-V	[e-mail]	Multimodel interfaces for Virtual Humans and behavior markup, propose to adopt part from BML, examples of how this can be used, Second: the TV platform as a Virtual World I/O device: use of jointSPACE: remote rendering: the content is streamed as video. (it is an ETSI initiative as well) Third: Hybrid communication technology: Interfacing the virtual world with Internet world Resolution: add the use cases in Part 1. Check is new requirements are needed (for the next meeting)
m18025	Proposal of GPS Sensor Capability Type, Altitude Sensor Capability Type, and Global Position Capability Type	Kyoungro Yoon , Doohyun Kim , Min-Uk Kim	These sensors are already in ADM1, here there are presented the capability type for each of them. Resolution: Change the name in MobileDevicePotisionCapability Use the bounding box for defining the 3D space.
m18507	Additional type for Virtual Object	Sanghyun Joo	Add the VOVisual in the common characteristic type that may describe the light, shadow and collision effect. A complete description of light, shadow and collision. Resolution: there is no need to go this level because these features are implemented in the graphics engine.
m18509	Minor changes in MPEG-V Part 4	Sanghyun Joo, Bas du formulaire	Add Wheel Button in the mouse. Add the combination of different input elements. The “Click definition” is proposed. Resolution: change the Event schema for allowing combination of the Mouse/Keyboard/UserDefinedInput. Accept the wheel button. Issue an internal document called “Technical corrections on MPEG-V”. Resolution: update the FDIS for adding the maxOccurent= unbound for the “choice” in the VWOEventType and adding keyCode AMD1: Add the mousewheel events in the MouseEventCS
m18023	Update of Reference SW for MPEG-V Part 2	Bum Suk Choi , Eunseo Lee , Jong Hyun Jang , Kyoungro Yoon , Jonghyung Lee , Ying Ying Chen	Reflects the changes that are done in FDIS Resolution: accepted in a study of FCD
m18024	Update of Reference SW for MPEG-V Part 5	Eunseo Lee , Bum Seok Choi, Kwang Roh Park, Kyoungro Yoon , Jonghyung Lee , Ying Ying Chen	Reflects the changes that are done in FDIS Resolution: accepted in a study of FCD
m18449	Proposed changes for validation rules of MPEG-V Part 7	Markus Waltl , Christian Timmerer	postponed
m18027	Proposal of Header information for binary transmission of MPEG-V information	Kyoungro Yoon , Soohan Kim , Woo Chool Park , Hae Moon Seo	A common header for binary representation for Part 2 to 5. It indicates that the stream is MPEG-V, the mode, the parts and the year of the version. Resolution: to generate a table with all the types, ordered per Parts and to allocate unique identifiers to all the types. The types from Part 1 are 1xx, the ones from Part 2 are 2xx, … Accepted for AMD1 for Part 6 TODO: review the binsarisation of the elements in each part to remove the identifier that is now present in the common header.
m18252	Robot Integration	acordova @tue.nl , jean.gelissen @philips.com	Extension for controlling the robot from the virtual world. The paper proposes some new types for controlling the robot. Resolution: compare the proposed types with the ones already existent in MPEg-V and identify what is missing for covering the functionality. Try to extent to generic tools for controlling the robots and not only one robot.
m18352	Path Finding	jean.gelissen @philips.com , roland @cs.uu.nl ,	In the application of virtual tourism, it is needed to compute the path between two points. The requirement is that MPEG-V should be able to specify the path. We have currently a type called GlobalPositionCommand that can define real positions. We have to add a possible name and description for each point as well as a way to combine several potions to obtain a trajectory.
m18365	Data format for sensed information on Electrograph sensor	SeungJu Han , Jae Joon Han , Won-Chul Bang , James D.K. Kim , Sang-Kyun Kim	The Electrograph sensors have only usage recommendation in other standards but not a formalized data format. The locations for sensors were investigated because the sensors measure the electrical activity as differences between two locations. Waveform Pattern: Maximum amplitude of wave To describe the electrogram it is needed to specify the waveform, the frequency, the amplitude, phase, coherence and location Proposal: label (EEG, ECG, EMG), placement, timeseries, pattern, unit and max amplitude Resolution: prepare an Electrograph base type and extend for the three types: EEG, EMG, ECG. Dissociate the raw data from metadata.
m18377	Tactile Information	jean.gelissen @philips.com , esko.dijk @philips.com	Editorial points for Part 3
m18410	Sensed Information for gas and dust sensors	Jae Joon Han , SeungJu Han , Won-Chul Bang , James D.K. Kim , Sang-kyun Kim , YongSoo Joo	A study on the different types of gas that may be sensed. A set of types are proposed in a classification scheme that can be extended. The unit is ppm but may be also something else. DustType is also proposed that extend the basetype with value and unit. Resolution: add gas and dust in AMD1. Add use cases in Part 1.
m18487	Definition and application domains of new sensors	Seong Yong Lim , Jihun Cha , Injae Lee , Young-kwon Lim , Joong Yun Lee	Multipointing, Gaze tracking, Wind sensor, Add in Part 1 some clarifications, application domain. Resolution: add in AMD 1 of Part 1
m18488	Sensor capability and preference of new sensors	Seong Yong Lim , Jihun Cha , Injae Lee , Young-kwon Lim , Joong Yun Lee	Present the capabilities of the proposed sensors as composition of existent capabilities and additional data. Resolution: accepted partially. Change the blinking in a duration (ms) and not an on/off effect. Wind Adaptation preference not accepted.
m18489	Binary representation of new sensors	Seong Yong Lim , Jihun Cha , Injae Lee , Young-kwon Lim , Joong Yun Lee	Present the binarisation of the proposed sensors. Resolution: Change the synthax of GazeTrackingSensorType to only have binary type for blink. Remove the position component from the Wind sensor
m18508	Descriptions for social network services	Sanghyun Joo	Add the userProfile and communication type for users. Resolution: investigate on the possibilities to integrate multi-user worlds in MPEG-V
m18510	Sensor capability for gas and dust sensors	Jae Joon Han , SeungJu Han , Won-Chul Bang , James D.K. Kim , Sang-kyun Kim , YongSoo Joo	Extends the base capability type. Resolution1. Accepted. Resolution2: Make clear that in the case of multidimentional sensors the min/max, intervals , … from SensorCapabilityBaseType are overwritten and not used.

4.3.2Reconfigurable Graphics Coding

Several joint meetings with Video RVC group took place to review the related contributions. The resolutions are reported in the table above.

4.4Explorations

none

5Liaison

none

6Output documents and Resolutions of 3DGC

1. Part 4 Conformance

   1. The 3DG subgroup recommends to appoint Ralph Sperschneider and Francisco Morán Burgos as editors of 14496-4:2004/Cor.7:2010

2. Part 16 Animation Framework eXtension (AFX)

   1. The 3DG subgroup recommends approval of the following documents

      No.	Title	TBP	Available
      	14496-16 – Animation Framework eXtension (AFX)
      11665	Description of 3DG Core Experiments	No	10/10/15
      11666	Working Draft 3.0 on Multiresolution Mesh Compression	No	10/11/15
      11667	Working Draft 3.0 on Reconfigurable Graphics Coding	No	10/10/30
      11668	Reconfigurable graphics coding tutorial v2.0	No	10/10/15

   2. The 3DG subgroup recommends NBs to study the input contribution m18614 “Proposed requirements for RVC and RGC specification language and solution” and provide comments by the next MPEG meeting

3. Part 25 3DGCM

   1. The 3DG subgroup recommends approval of the following documents

      No.	Title	TBP	Available
      	14496-25– 3DG Compression Model
      11669	Text of 2^nd Edition of ISO/IEC 14496-25 FDIS 3DG compression model	No	10/10/15

   2. The 3DG subgroup recommends to integrate 14496-25:2009/FDAM 1 into 14496-25 2nd Edition and issue FDIS 14496-25 2nd Edition.

7Establishment of 3DG Ad-Hoc Groups

N11670	AHG on 3DG documents, software maintenance and core experiments
Mandate:	Conduct the experiments on efficient representation of 3D meshes with multiple attributes Conduct the experiments on Reconfigurable Graphics Coding Maintain and edit 3DG documents Coordinate 3DG related conformance and reference software Coordinate editing of the www.mpeg-3dgc.com web site
Chairmen:	Francisco Morán Burgos, Seung Wook Lee
Duration:	Until 95^th meeting
Meetings:	Sunday before 95^th meeting
Reflector:	mpeg-3dgc AT gti. ssr. upm. es
Subscribe:	https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc

N11671	AHG on Multi-Resolution 3D mesh Coding
Mandate:	Design an integrated approach combining the PTFAN and KLPMC techniques Provide a first version of the verification model software Continue the evaluation experiments Update the testing platform (MMW.com)
Chairmen:	Khaled Mamou, Minsu Ahn, Xiangyang Ji
Duration:	Until 95^th meeting
Meetings:	Sunday before 95^th meeting
Reflector:	mpeg-3dgc AT gti. ssr. upm. es
Subscribe:	https://mx.gti.ssr.upm.es/mailman/listinfo/mpeg-3dgc

8Closing of the Meeting

See you in Daegu.