|
ITU-T Study Group 16 (Study Period 2005-2008) |
|
Question 6/16 - Visual coding |
|
(Continuation of Question 6/16)
- Motivation
The goal of this Question is to produce Recommendations for visual signal coding
methods appropriate for conversational (e.g. videoconferencing and video telephony)
and non-conversational (e.g., streaming, broadcast, file download, media storage/playback,
or digital cinema) audio/visual services. Visual signal coding includes the coding of:
- video sequences
- still image
- graphics
- stereoscopic and multi-view visual information
- light fields and volumetric imagery
- computer displays
- medical imaging
This Question will focus on the maintenance and extension of existing video and still-image coding
Recommendations, and laying the ground for new Recommendations using advanced techniques
to significantly improve the trade-offs between bit rate, quality, delay, and algorithm complexity.
Video, still-image, and other visual coding standards will be developed with sufficient flexibility
to accommodate a diverse number of transport types (Internet, LAN, Mobile, ISDN, GSTN, H.222.0, NGN, etc.).
- Study Items
- New coding methods in order to achieve the following objectives:
- improvements in compression efficiency;
- robust operation in error/loss-prone environments (e.g. non-guaranteed-bandwidth packet networks or mobile wireless communication);
- reduction of real-time delay;
- reduction of channel acquisition time and random access latency;
- reduction of complexity;
- Organization of the compressed data format to support packetization and streaming;
- Methods to allow streams to be easily mixed by MCUs or terminals;
- Techniques to permit networks or terminals to adjust the bit rate of video streams efficiently;
- Techniques for object coding and multi-view operation;
- Techniques for efficient compressed-digital to compressed-digital processing (including transcoding).
- The impact of colorimetry, video quality assessment, and quality control requirements on video codec development.
- Computer graphics compression.
- Security aspects that directly affect video and still-image coding including watermarking techniques.
- Tasks
Tasks include, but are not limited to:
- Maintenance of existing H-series video coding Recommendations, including H.120, H.261, H.262 | ISO/IEC 13818-2, H.263 and H.264 | ISO/IEC 14496-10;
- Extensions to H.264: 2004-2008;
- Conformance and reference software development for H.264;
- Complete requirements definition and begin detailed algorithm design for H.265;
- Final Rec. H.265: expected 2009-2010 (given sufficient progress in contribution technology);
- Maintain and extend existing Recommendations regarding still image coding, including Recommendations
T.80, T.81, T.82, T.83, T.84, T.85, T.86, T.87, T.88, T.89, T.800, T.801, T.803, T.804, T.851, and T.870.
- Relationships
Recommendations:
- H.300-series Systems Recommendations;
- H.222.0;
- H.241;
- H.245;
- H.248;
- T.80-series, T.800-series.
Questions:
- 20(A), 21(B), 22(C), 23(E), 24(F), 25(G), 26(H), 28(J), 1, 2, 4 of SG 16
Study Groups:
- SGs 9, 11, 12, 13;
- ITU-R SG 6 (in particular, Working Party 6M)
Other bodies:
- ISO/IEC JTC 1/SC 29 (MPEG and JPEG/JBIG) for harmonization of advanced coding objectives;
- IETF, DVB, ATSC, ARIB, 3GPP, 3GPP-2, SMPTE, IMTC, OMA, W3C.
» List of Questions « |
|
