International organisation for standardisation organisation internationale de normalisation
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- Output Documents planned
- MPEG-4 part 10 AVC
- AVC stereo and 3D extensions
- Web Video Coding
- Coding independent code points
- MPEG-7 Visual
Joint MeetingsThe following joint meetings were held (see notes, as applicable, in the corresponding sections)
A provisional list of output documents was set up in the opening plenary and further updated during the Wednesday plenary. See list of final output docs in sec. 14.1.
Following the Defect report from the previous meeting, a DCOR N13322 had been issued in Geneva for correction of a rounding operation in interlaced motion compensation, where the current text and software/conformance deviate from each other. No changes were necessary, and the COR was issued as N13742.
A DCOR N13325 had been issued in Geneva for correction of the sub-bitstream extraction process in AVC. The corresponding COR was now issued as N13751, where one more change related to the same item was made upon NB request. The amendment on additional color gamut and tone mapping descriptors is ongoing (FDAM4 or AMD4 depending on DAM ballot outcome in October), no need for a Study document was identified.
The work on the following stereo/3D video related amendments of AVC is ongoing as coordinated action with JCT-3V:
Related software and conformance amendments are also under preparation. The following output documents were produced from the Vienna meeting:
ISO/IEC DIS 14496-19 (N13561) had been issued in Incheon. Even though according resolutions had been formulated by the same time, patent statements received so far seem to represent only a small subset of the statements that were originally submitted for 14496-10. Further, previously mentioned problems regarding the ISO database are not resolved yet. Therefore, resolutions (and related output documents N13755, N13756) were again issued to help settle the issues, particularly urging for action on submitting IPR statements before the closing of the DIS ballot.
A few flaws related to video syntax in CICP had been detected after approval. During the Incheon meeting, a defect report N13594 was produced as first step to resolve these issues in an upcoming corrigendum, and a WD N13595 for an amendment text concerning aspect ratio descriptors (that are currently missing in the CICP spec) was approved. However, there was another Systems output document issued in Incheon (CICP TuC W13489) that touched video issues. To take corrective action, a joint meeting was held between the Video and Systems subgroups, where merging of the documents was agreed, with video experts to assist the Systems SG.
See above AHG report m30567. Since the previous meeting, work was performed by the AHG in further updating the XM software, making it usable with newer compilers and libraries. 15.0.0.1.1.1.1.1.24m30517 MPEG-7 eXperimentation Model Update and Testing [Karol Wnukowicz, Stavros Paschalakis]
The following document was discussed in ajoint meeting with the Systems SG: 15.0.0.1.1.1.1.1.25m29793 Proposal for MPEG-7 Extensions for Visual Quality Metadata [Werner Bailer, Peter Schallauer, Borgotallo Roberto] Request definition of a visual quality description scheme (which would need to be hosted in MDS). However, semantics assignment is missing or not precise. Includes visual quality, defects (like noise, scratches), eventually transmission loss parameters. Intent to define concrete quality descriptors in visual? Consider to issue a public Call? Liaison with EBU was sent last meeting; other liaison activity ongoing. |