Search Results for "JVET-AF0112"
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Abstract
This contribution describes EE2-5.1 which proposes three additional techniques for the Bilateral Filter (BIF):
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JVET-AF0112 EE2-5.1: Dynamic Scaling of Bilateral Filter (BIF) [V. Shchukin, P. Wennersten, J. Ström (Ericsson)]
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JVET-AF0112 EE2-5.1: Dynamic Scaling of Bilateral Filter (BIF) [V. Shchukin, P. Wennersten, J. Ström (Ericsson)]
Citation
Abstract
This contribution reports the crosscheck results of EE2-5.1 [1]. In EE2-5.1, three additional techniques for Bilateral Filter (BF) are proposed:
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JVET-AF0203 Crosscheck of JVET-AF0112 (EE2-5.1: Dynamic Scaling of Bilateral Filter) [W. Yin (Bytedance)] [late]
References:
Decisions
JVET-AF0203 Crosscheck of JVET-AF0112 (EE2-5.1: Dynamic Scaling of Bilateral Filter) [W. Yin (Bytedance)] [late]
Citation
Abstract
This report summarizes the activities of the AHG6 on ECM software development that has taken place between the 32nd and 33rd JVET meetings.
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JVET-AG0006 JVET AHG report: ECM software development (AHG6) [V. Seregin (chair), J. Chen, R. Chernyak, F. Le Léannec, K. Zhang (vice-chairs)]
Software development
ECM software repository is located at https://vcgit.hhi.fraunhofer.de/ecm/ECM.
ECM software is based on VTM-10.0 with enabled MCTF including the update from JVET-V0056, and GOP32, which is very close to VTM-11.0.
VTM-11.0ecm anchor https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/tree/VTM11_ANC is used for ECM performance evaluation.
The following changes were integrated into ECM-10.1:
Fix: high QP for AA0093 (MR 519)
Fix: reconstruction buffer copied when BIF is not performed for a sub-TU (MR 522)
Fix for uninitialized values usage reported by valgrind (MR 524)
Reduce MCTF peak memory allocation by computing applyMotion in place
Fix: memory reduction: use actual CTU size instead of MAX_CU_SIZE in encoder (MR 520)
ALF optimization - compute only Upper triangular part of covariance matrix (MR 521)
PU memory reduction by moving intraMPM member from PU IntraPredictionData to IntraPrediction (MR 518)
Fix: CU memory reduction. move some members from CU to intra search (MR 517)
Refactor picture buffer to allocate buffers for current frame and not for the entire GOP (MR 523)
CS memory reduction by allocating temporary CodingStructure data only for the current picture (MR 525)
Shrink some deblocking buffers and reduce length of memset() initializations (MR 526)
Memory reduction for sign prediction (MR 527)
Bugfix for multi-model BVG-CCCM (JVET_AE0100_BVGCCCM) (MR 530)
Use transposed buffers (MR 529)
Refactor Cabac ctx (MR 528)
Decisions
merged
The AHG recommended to:
Continue to develop ECM software.
Improve the software documentation.
Encourage people to report all (potential) bugs that they are finding using GitLab Issues functionality https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/issues.
Encourage people to submit merge requests fixing identified bugs.
Encourage people to continue working on ECM memory consumption reduction.
Encourage people to continue working on speeding up ECM encoder to reduce the simulation time.
It was asked what the memory consumption is compared to the VTM. This was not reported, but it is estimated to be larger by a factor of approximately 2x for the current ECM software implementation.
Citation
Abstract
This document reports the verification test results of VVC multi-layer coding according to the “Content layering” category of the verification test plan JVET-AD2021 that was issued in the 30th JVET meeting. Content layering is one of the useful use cases, where main content and multiple sub-content are coded with multi-layer coding into a single bitstream and delivered to the users. By selecting a layer to be decoded, the user can freely select whether to view the main content or the sub-content. The functional test using three test sequences with sub-contents was carried out using a real-time VVC decoder with multilayer coding capability, to demonstrate the effectiveness of content layering application.
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JVET-AF2033 Report of verification test on VVC multi-layer coding: Content layering
The following 4 documents were produced as WG 5 documents only, without a corresponding JVET output document or direct repetition of their content in this meeting report:
WG 5 N 240 Disposition of comments received on ISO/IEC CD 14496-10:202x
WG 5 N 243 Disposition of comments received on ISO/IEC 23008-2:202x (5th ed.) CDAM 1
WG 5 N 251 Liaison statement to ISO/IEC JTC 1/SC 29/WG 1 (JPEG) on JPEG AI and explorations on video coding
WG 5 N 252 Liaison response to 3GPP on feasibility study on film grain synthesis
For the organization and planning of its future work, the JVET established 16 “ad hoc groups” (AHGs) to progress the work on particular subject areas. At this meeting, 2 Exploration Experiments (EE) were defined. The next eight JVET meetings were planned for 17 – 19 and 22 – 26 January 2024 under I...
Cited:
Decisions
a) JVET documents
The meeting was closed at 1724 CEST on 2023-10-20.
Citation
Abstract
This document is Enhanced Compression Model 11 (ECM 11) software algorithm description. It includes the coding features and encoding methods implemented in ECM-11.0 software that are under coordinated exploration study by the Joint Video Exploration Team (JVET) of ITU-T VCEG and ISO/IEC MPEG as potential enhanced video coding technology beyond the capabilities of VVC.
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JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11)
JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11) [M. Coban, R.-L. Liao, K. Naser, J. Ström, L. Zhang] [WG 5 N 250] (2023-12-15)
New elements from notes elsewhere in this report:
Decision (SW): Adopt the new threshold in JVET-AF0111 to the next releases of ECM, VTM and VTM-11ecm.
Decision: Adopt JVET-AF0079 test 2.6c.
Decision: Adopt JVET-AF0066, test 2.9a.
Decision: Adopt JVET-AF0066, test 2.9a.
Decision: Adopt JVET-AF0073 test 3.1d.
Decision: Adopt JVET-AF0128 test 3.2.
Decision: Adopt JVET-AF0163 Test 3.4a.
Decision (SW): Adopt JVET-AF0057 test 3.5b. Not enabled in CTC.
Decision: Adopt JVET-AF0159 Test 3.6a.
Decision: Adopt JVET-AF0190 test 4.1b.
Decision: Adopt JVET-AF0112 Test 5.1a.
Decision: Adopt from JVET-AF0197 the part of luma residual tap in CCALF test 5.2b.
Decision: Adopt t...
Decisions
JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11)
adopted
Adopt JVET-AF0059 (fix to interpolation filters)
Citation
Abstract
This document provides a summary report of Exploration Experiment on Enhanced Compression beyond VVC capability. The tests are categorized as partitioning, intra prediction, inter prediction, transform and coefficient coding, and in-loop filtering.
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JVET-AF0024 EE2: Summary report of exploration experiment on enhanced compression beyond VVC capability [V. Seregin, J. Chen, R. Chernyak, K. Naser, J. Ström, F. Wang, M. Winken, X. Xiu, K. Zhang]
This document provides a summary report of Exploration Experiment on Enhanced Compression beyond VVC capability. The tests are categorized as partitioning, intra prediction, inter prediction, transform and coefficient coding, and in-loop filtering.
The software basis for this EE is ECM-10.0, released at https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/tags/ECM-10.0. ECM-10.0 is used as an anchor in the tests.
Software for EE tests is released in the corresponding branches at https://vcgit.hhi.fraunhofer.de/ecm/jvet-ae-ee2/ECM/-/branches.
Test results can be found in input JVET contributions, cross-check results are uploaded to https://vcgit.hhi.fraunhofer.de/ecm/jvet-ae-ee2/simulation-results if cross...
Decisions
adopted
Adopt the CABAC initialization parameters from JVET-AF0133 Test 6.2. Also the script should be included in the ECM package, such that it can be used by other experts
Citation