International organisation for standardisation

Task Groups

1. 
   MPEG-2 and MPEG-4 Audio, MPEG Audio Conformance, MPEG reference software, MPEG Surround
   
2. 
   MPEG-D Spatial Audio Object Coding
   
3. 
   MPEG-D Unified Speech and Audio Coding
   
4. 
   Exploration: Meta-Data
   

3. Output Documents

No.	Title		TBP	Available
	14496-5 – Reference Software
11202	Study on ISO/IEC 14496-5:2001/AMD 10:2007/DCOR 4, SLS		No	10/1/22
No.	Title		TBP	Available
	23003-1 – MPEG Surround
11203	23003-1/AMD 1/DCOR 1, Corrections to Conformance		No	10/2/19
11204	23003-1 AMD 2/DCOR 2, Corrections to Reference Software		No	10/2/19
11205	Status of MPEG Surround Reference Software		No	10/1/22
No.	Title		TBP	Available
	23003-2 – SAOC
11206	DoC on ISO/IEC FCD 23003-2:2010, Spatial Audio Object Coding		No	10/1/22
11207	ISO/IEC FDIS 23003-2: 2010, Spatial Audio Object Coding		No	10/2/19
11208	WD of MPEG SAOC Conformance and Reference Software		No	10/2/19
11209	Workplan on MPEG SAOC Reference Software		No	10/1/22
11210	Draft Workplan for SAOC Verification Test		No	10/1/22
11211	Application Scenarios for SAOC Teleconferencing Use Cases and Workplan For Their Technical Evaluation		No	10/1/22
No.		Title	TBP	Available
		23003-3 – Unified Speech and Audio Coding
11213		WD6 of USAC	No	10/2/19
11214		Workplan for USAC CEs	No	10/1/22
11215		Workplan on MPEG USAC Reference Software	No	10/1/22
No.	Title		TBP	Available
	Liaison Statements
11216	Response to Liaison from World DMB Forum		No	10/1/22
11217	Response to Liaison from ITU-T SG 16 on Enhanced Low Delay AAC		No	10/1/22
11218	Response to Liaison from ITU-R SG 6/WP 6B		No	10/1/22

4. Agenda for the 92^nd MPEG Audio Meeting

Agenda Item

1. 
   Opening of the meeting
   
2. 
   Administrative matters
   
   1. 
      Communications from the Chair
      
   2. 
      Approval of agenda and allocation of contributions
      
   3. 
      Review of task groups and mandates
      
   4. 
      Approval of previous meeting report
      
   5. 
      Review of AhG reports
      
   6. 
      Joint meetings
      
   7. 
      Received national body comments and liaison matters
      
3. 
   Plenary issues
   
4. 
   Task group activities
   
   1. 
      MPEG-1, MPEG-2, MPEG-4, and MPEG Surround
      
   2. 
      Spatial Audio Object Coding
      
   3. 
      Unified Speech and Audio Coding
      
   4. 
      Audio for HVC
      
5. 
   Discussion of unallocated contributions
   
6. 
   Meeting deliverables
   
   1. 
      Responses to Liaison and NB comments
      
   2. 
      Recommendations for final plenary
      
   3. 
      Establishment of new Ad-hoc groups
      
   4. 
      Approval of output documents
      
   5. 
      Press statement
      
7. 
   Future activities
   
8. 
   Agenda for next meeting
   
9. 
   A.O.B
   
10. 
    Closing of the meeting
    

9. 
   – 3DG report
   

Source: Marius Preda, Chair

1Opening of the meeting

1.1Approval of the agenda

The agenda is approved.

1.2Goals for the week

The goals of this week are:

Review SC-3DMC contributions and issue the associated FDAM

Discuss the software and conformance status for SC-3DMC

Status of software implementation for MP25 AMD1

Status of conformance for MP25 AMD1

Review contributions related to 3D graphics engines in MXM

Review contributions related to 3D graphics aspects of MPEG-V

Review contributions related to Representation of meshes with multiple attributes

Investigate future developments of MPEG 3D Graphics Compression

Review RGC (reconfigurable graphics codec) contribution

Review Liaisons

Review the votes

Web-site

1.3Standards from 3DGC

4	5	2001	Amd.26	Reference software for scalable complexity 3D mesh coding in 3DG compression model			09/10	10/04	10/10	3
4	5	2001	Amd.27	Scalable compl. 3DMC RS			09/02	09/10	10/04	3
4	16	200x	Amd.1	Scalable complexity 3D mesh coding	08/01	08/10	09/02	09/07	10/01	3
4	16	200x	Amd.2	Mesh representation with multiple attributes		10/01	10/04	10/10	11/01	3	NOTOK to go CD
4	25	2009	Amd.1	Scalable complexity 3D mesh coding for 3DG compression model		09/07	09/10	10/04	10/10	3
4	27	200x	Amd.2	Scalable compl. 3DMC conformance			09/02	09/10	10/04	3
4	27	200x	Amd.3	Conformance for scalable complexity 3D mesh coding in 3DG compression model			10/01	10/04	10/10	3

1.4Room allocation

3DGC: 4T2F R3

1.5Allocation of contributions

N°	Title			Schedule	Observation
D1	Monday			D1
	MPEG Plenary			09:00~11:30
	Lunch Break			13:00~14:00
	3DG Plenary	Roll call, Agenda, Goals, FAQ, etc.,	Marius Preda	14:00~15:00
		m17082 Report of AHG on 3DGC documents, experiments and software maintenance	Francisco Moran
		Results of voting	Marius Preda
	Coffee Break			15:00~15:30
	Scalable Complexity 3D Mesh Coding (SC-3DMC)	m17307 SC3DMC software integration on 3DGraphicsEngine in MXM Summary: the contribution introduces the implementation of the SC3DMC into MXM 3D graphics engine. All the three methods (TFAN, SVA and QBCR) are supported. Both encoder and decoder are included. A MXM library was compiled. Resolution: It is necessary to create the MXM APIs for SC3DMC. The Ogre player is agnostic to how the geometry is encoded, thus same application as demonstrated in London meeting should work.	Sowon Kim, Daiyong Kim, Seungwook Lee, Bonki Koo, Euee S. Jang	15:30 – 17:00
		m17177 SC3DMC integration into IM1 Summary: A new version of IM1 including SC3DMC is updated and is available on the SVN. The full set of conformance bitstreams is generated. Resolution: Accepted. Add the conformance files to the Part 27 (Conformance for AFX).	Khaled MAMOU Titus Zaharia Marius Preda Françoise Prêteux
		Player for SC3DMC Done in IM1. Work will continue for the player in Ogre.	All
	Software maintenance	m17308 Implementation and bug fixing of MPEG-4 3DMCe reference software Summary: A new project compliant with VS2008 was released. A GUI is also provided. It allows control of encoding parameters. Resolution: Add a new branch on the SVN in the directory Standalone/3DMC containing the encoder and decoder versions compliant with VS2008.	Seungwook Lee Bonki Koo Daiyong Kim Sowon Kim Euee S. Jang	17:00 – 17:30
	3DG in MXM	m17284 FootPrint API for MXM Summary: An update of the mediaFramework API that supports access and creation of MPEG-4 content including FootPrint is proposed. Resolution: to be discussed with MXM BoG.	Ivica Arsov Luyen van Ngo Marius Preda	17:30 – 18:00
D2	Tuesday			D2

Multi-Resolution 3D Mesh Coding (MR-3DMC)

m17178 PTFAN: a multi-resolution extension for the TFAN codec Summary: Objectives are the spatial & quality scalability, lossless connectivity coding (no re-meshing) & near lossless geometry coding. State of the art: progressive mesh (base mesh + vertex split operations). Adv: progressive transmission & rendering, high quality intermediate LODs. Disadv: limited applicability (manifold meshes), low compression performances (index of the vertex to be refined 9-14 bpv, local topology update 5bpv). Progressive forest split: regroup the vertex split operations in a package (reduce the cost of refinement operations). Adv: better compression performances than progressive meshes (7-10 bpv). Disadv: LODs of lower quality. Patch coloring approach: vertex removal based on a patch. Adv: good compression performance. Connectivity 5-6 bpv. Disadv: low quality LODs. Valence based decimation approach: same as previous but keep the valence of the vertex around value 6. Adv: good compression performances (4bpv for connectivity). Disadv: low quality LODs for non uniform meshes, limited applicability. Octree compression: Adv: good compression perf (2-10 bpv for connectivity). Disadv: Low quality LODs for smooth 3D meshes. Spectral coding: encode statically the connectivity and progressively the geometry. Adv: good compression performances. Disadv: high computational complexity, supports only quality scalability. Proposal of PTFAN: the connectivity is compressed in a monoresolution way. Then it is used to predict the geometry. PTFAN has compression performances 20-70% better than TFAN. Decoding times: PTFAN decodes 10k vertices / sec. Adv: high quality for intermediate LODs.

Khaled Mamou Christophe Dehais

09:00 – 12:00

m17164 Multi-resolution approach for 3D Mesh Compression Summary: Overview of the encoding approach: the mesh is simplified and a set of removed vertices is obtained. The simplified mesh is segmented. A KL transform is applied on the removed vertices of a segment. Finally the coefficients are quantized and an entropy encoder is applied. The base mesh is encoded by using a mono-resolution approach. The base mesh is obtained by vertex removal. KLT is applied on prediction errors (with respect to the baricenter). KLT is applied on segments of the mesh that are obtained by using a normal approach. The results are presented with respect to the curves in the literature, comparing the effect of the quantization step. New 3D models are proposed and will be uploaded on the ftp site.

Minsu Ahn James Do Kyoon Kim

m17338 Test on multi-resolution mesh coding for CE 4 Summary: investigation on the quality and resolution scalability. Depending on the model, there are different benefits in the quality over resolution scalability.

Feng Lu Xiangyang Ji Guihua Er Qionghai Dai

Wrap-up: - concrete motivations (use case scenarios that should clarify what are the features we are looking for) - database (what are the properties of the models) - comparison with other codecs - comparison method (PSNR, Resolution) - platform for testing Resolution: detail the CE with respect to the above mentioned points. Create an AhG treating them in details.

MPEG-V Part 3

Effect duration, Streaming

Christian Timmerer, Sang-Kyun Kim, Marius Preda

12:00 – 12:30

MPEG-V Part 4

Avatar as a Virtual Object

Jae-Joon Han, Marius Preda

12:30 – 13:00

Lunch Break

13:00~14:00

	MPEG-V/MPEG-U		m17203 Data format for MultiPointing Interface Summary: MultiPoint device is an extension of SensedInfoBaseType Proposal for MoveType with two children: straight and rotate. Proposal of MultiPointingSensorCapability Resolution: Extend the MotionSensorType and add hold/release (to be considered as an array). A new sensor called MultiPointingSensor will be created and added to Part 5.					14:00 – 16:00		Joint with S
			Part 5: For the types defined in other standards, we refer to the sections where the original semantic was defined. We create subset of .xsd from other standards and add them in an annex. - Alternatives: 1. add the common types in Part 1 (vector, timing, …) 2. add the common types in Part 5 3. create a new part for the common types			Marius Preda
			m17283 Streaming needs for MPEG-V alternatives TeM, BIM - BIM may be very complex when we need to be extensible - TeM - update Mask Open Question: where to specify the streaming mechanism? Final resolution: use the same mechanisms as in MPEG-7 Visual, that is, defining a binary format for each sensor/actuator.
	Coffee Break							16:00~16:30
	Reconfigurable Graphics Coding		m17309 Case study of 3DMCe implementation in RVC framework using HOPES			Seungwook Lee Bonki Koo Ming-Xiao Chen Sowon Kim Daiyong Kim Hyunok Oh Euee S. Jang		16:30~17:00		Joint with V

	MPEG-4 Part 5 & 27	Status on the AFX & Part 25 conformance and Reference Software	Francisco Morán	17:00~18:00
D3	Wednesday			D3
	MPEG Plenary			09:00~11:00

	MXM		m17284 FootPrint API for MXM Provide the update for the Graphics3D Engine API for including FootPrint codec. Resolution: To Integrate it in the current version of the MXM API specification.			Ivica Arsov Luyen van Ngo Marius Preda		11:00~11:30		Joint with S

Lunch Break

12:00~14:00

MPEG-V

The streaming mechanism should be similar as in 15938-3 MPEG-7 Visual (section 4.2 and 3.9) Part 6 contains the indication on how the streaming is performed (TeM, BIM, BinaryRepresentation)