International organisation for standardisation organisation internationale de normalisation

Wednesday

Wed
Session	Raw audio/video support in MPEG scene				11:30h to 12h
Summary: a proposal for corrections of the initial document. Resolution: duplicate the functionality of the wave file. Analyze all the possibilities (check with Noburu). Issue a corrigendum. Register with MP4RA the raw video (from camera) and audio (from microphone).
Session__Pattern_based_mesh_coding__14h_to_15h'>Session	Pattern based mesh coding				14h to 15h
Summary: Introducing a mechanism to compensate the errors between the reconstructed position of a vertex and the original position. Only three quantification levels are retained and a lookup table (one per whole object) is providing the real quantization steps. Continue the work on benchmark and propose some statistics for the next meeting. Recommendation: Accepted.
Session	Render friendly 3D Decoders				14h to 15h
Summary: 1. Proposal 1: allow for a GPU operating mode where a single index array is used for vertices, normals and texture coordinates encoding. Solution: design a GPU-friendly profile where we constrain the existence of a unique index table shared by coordinates and attributes. Having one index table is already supported by the specification. 2. Proposal 2: allow for an embedded GPU operating mode where only triangles are encoded and supported. Solution: design a GPU-friendly profile where we constrain the facets to be only triangles. 3. Proposal 3: allow for a GPU operating mode where several triangle series can be represented at encoding time in a single vertex array, using the concept of primitive restart as described in OpenGL ES 3.0. Solution: this feature requires changing of the bitstream syntax and semantics. 4. Proposal 4: allow for a GPU operating mode where the model is encoded as already flattened according to its texture UV map. Solution: This proposal is already included in Proposal 1. 5. Proposal 5: allow for a GPU operating mode where texture formats such as ASTC and ETC2 are natively supported at encoder and decoder sides. By doing so the loading time decreases by 10-20 times for typical models with large textures. Solution: Add support for ETC2 and ASTC in MP4 File Format (AMD of MPEG-4 Part1). Check the usage conditions of these texture formats (with Khronos?!, others). 6. Proposal 6: allow for a GPU operating mode where the mipmap texture cascade can be described and formatted by the encoder as a single image track. Solution: this can be done by supporting KTX or a similar wrapper that will refer to ETC2 or ASTC (AMD of MPEG-4 Part1). Check the usage conditions of KTX. 7. Proposal 7: allow for a GPU operating mode where shading techniques can be described at high level by the encoder for efficient execution by GPUs with different capabilities. Solution: Support for Shaders should be added in MPEG-4 BIFS, same level as for COLLADA FX and X3D Shaders. Start an AMD of MPEG-4 Part 11. 8. Proposal 8: allow for an embedded GPU operating mode where the total number of bones and the number of bones associated to a single vertex is limited during encoding to a specification-defined limit. Solution: define several levels wrt the total of bones in the model and the maximum number of vertices connected to a bone. Numbers from OpenGL ES2.0 and ES3.0 can be used. 9. Proposal 9: a cleared integrated reference model should be provided with representative examples and documentation. Solution: a unique place with the latest version of the code, examples, and documentation more precise that the specification. 3DG website is necessary more than ever. 10. Proposal 10: a better distinction between the notions of bones and joints should be made into documentation. See previous solution. 11. Proposal 11: work on detailed description of BBA decompression with complexity measurements. Solution: Revise the implementation of the BBA decoder. 12. Proposal 12: investigate an embedded GPU operating mode usage of transformation matrices at 16 bit floating point precision and related coding. Solution: this should be investigated (during the BBA revision) AP1: start a Profile and Level for 1, 2 and 8 (TFAN and BBA) AP2: start a AMD of Part 11 for shaders (point 7) AP3: start AMD of Part 1 for textures (point 5 and 6) AP4: website (9, 10) AP5: BBA v2 (11, 12) AP6: Corr/AMD of Part 16 (point 3)
Session__Multiresolution_Mesh_Compression__16:30h_to_18h'>Session__Graphics_Tool_Library_Review__16h_to_17:30h'>Session		Graphics Tool Library Review		16h to 17:30h
Resolution: 46 out of 49 Fus will be promoted in DAM 33 out of 49 are implemented in RVC-CAL 15 others will be implemented until the next meeting. If they will not be implemented until the next meeting, they will not be promoted in the final document. The CE will explain the implementation plan
Session		Multiresolution Mesh Compression	16:30h to 18h
Summary: AttributeDecoder class is added in the bitstream synthax. The attributes are encoded with no prediction. Resolutions: Prediction modes for attributes stay in the CE.
Session		MPEG Event @ Korea	16:30h to 18h
Summary: Awareness event on MPEG Multimedia Ecosystem - Main target: outside communities - Concentrate on the business aspects and show how MPEG technologies can be used in the ecosystem. - increase awareness of MPEG activities on non-traditional aspects of MPEG (MPEG beyond the video compression) - Orient the presentations such as the ecosystem aspect be highlighted - Enabling multiple business models - Panel with external speakers (3-5 minutes), people with high impact, business leaders that acknowledge the positive impact of standards (list of possible names should be done quickly; AP: propose names); - Something special: inviting kids imagining what will the multimedia be in 20 years. Promotion videos can be used. - Demonstrations/booths: TV screens, Table, Chairs, Poster place - GreenVideo by Samsung - CDVS by noname company(ies) 24h - AR games by IMT - Collaborative Cross by IMT/yyy - Intelligent Camera by Samsung - Scalable Remote User Interface by KETI - Presentations topics (speakers: choose easy and attractive names!!!) - Not even asking and finding (UD) - (MPEG-V) - Connecting physical and digital worlds (AR) - Not typing, just viewing you get everything (CDVS) - Low power multimedia systems (GreenMPEG) AP: check the feasibility of the event (Joo @ KNB) AP: draft the flyer

4.