Search Results for "JVET-N0447"
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Abstract
In current VTM, the maximum number of triangle merge candidates in uni-prediction candidate list is specified as five without a control of higher-level flag. This contribution proposes to add a tile group flag to allow the maximum number of triangle merge candidates to be in the range of 2 to 5, inclusive. As the maximum number of triangle merge candidates specified as 2, it is further proposed to skip the signaling of the merge candidate index for the second triangle block, i.e., merge_triangle_idx1, because merge_triangle_idx1 must be an opposite index of the merge candidate index for the first triangle block, i.e., merge_triangle_idx0. Compared to VTM-4.0 with the number of triangle merge candidates specified as 2, the proposed signaling skip method shows -0.xx%/-0.xx%/-0.xx% YUV-BDrate with 100/100% encoder/decoder runtime for RA configuration, and -0.xx%/-0.xx%/-0.xx% YUV-BDrate with 100/100% encoder/decoder runtime for LB configuration.
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JVET-N0447 Non-CE4: On triangle merge mode [Y.-J. Chang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)]
References:
PATENTS:
US20200288175A1
0.34
2020-09-10
US11350083B2
0.32
2022-05-31
US11140406B2
0.30
2021-10-05
US11665339B2
0.28
2023-05-30
TWI835922B
0.26
2024-03-21
US11770296B2
0.24
2023-09-26
US11570434B2
0.22
2023-01-31
US11076169B2
0.20
2021-07-27
Decisions
merged
JVET-N0447 Non-CE4: On triangle merge mode [Y.-J. Chang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)]
Citation
Abstract
This contribution reports the crosscheck results of JVET-N0447 on triangle merge mode. It is reported that simulation results match those of JVET-N0447.
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JVET-N0622 Crosscheck of JVET-N0447 on triangle merge mode [X. Li (Tencent)] [late]
References:
Decisions
merged
JVET-N0622 Crosscheck of JVET-N0447 on triangle merge mode [X. Li (Tencent)] [late]
Citation
Abstract
This document reports the work of the JVET ad hoc group on draft text and test model algorithm description editing (AHG2) between the 14th meeting in Geneva, CH, (19-27 March 2019) and the 15th meeting in Gothenburg, SE, (3-12 July 2019).
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JVET-O0002 JVET AHG report: Draft text and test model algorithm description editing (AHG2) [B. Bross, J. Chen, J. Boyce, S. Kim, S. Liu, Y. Ye]
This document reports the work of the JVET ad hoc group on draft text and test model algorithm description editing (AHG2) between the 14th meeting in Geneva, CH, (19–27 March 2019) and the 15th meeting in Gothenburg, SE, (3–12 July 2019).
At the 14th JVET meeting, it was decided to include additional coding features for intra picture-prediction, inter-picture prediction, transform, CABAC engine and in-loop filter in the fifth draft of Versatile Video Coding (VVC D5) and the VVC Test Model 5 (VTM5) encoding.
The normative decoding process for Versatile Video Coding is specified in the VVC draft 5 text specification document. The VVC Test Model 5 (VTM 5) Algorithm and Encoder Description document provides an algorithm description as well as an encoder-side description of the VVC Test Model 5, which serves as a tutorial for the algorithm and encoding model implemented in the VTM5.0 software.
An issue tracker (https://jvet.hhi.fraunhofer.de/trac/vvc) was used to facilitate the reporting of errata with the VVC documents.
Decisions
The AHG recommended to:
Approve the edited JVET-N1001 and JVET-N1002 documents as JVET outputs,
Continue to edit the VVC draft and Test Model documents to ensure that all agreed elements of VVC are fully described,
Compare the VVC documents with the VVC software and resolve any discrepancies that may exist, in collaboration with the software AHG,
Encourage the use of the issue tracker to report issues with the text of both the VVC specification draft and the algorithm and encoder description,
Continue to improve the editorial consistency of VVC WD and Test Model documents,
Ensure that, when considering the addition of new feature to VVC, properly drafted text for addition to the VVC Test Model and/or the VVC Working Draft is made available in a timely manner.
Integrate fixes for open specification tickets in one document and have these fixes confirmed at this meeting.
Citation
Abstract
This document provides description for core experiment 11 (CE11). The objective of CE11 is to investigate the various methods for supporting gradual random access (GRA) in VVC and implementation of those methods on top of VTM reference software.
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JVET-N1031 Description of Core Experiment 11 (CE11): Gradual random access [K. Kazui, J.-M. Thiesse, Hendry, K. Kawamura]
New – the previous CE11 was subsumed under CE5.
The previous CE12 (Tile set boundary MC handling) was discontinued as per discussion on HLS topics.
It was emphasized that those CEs which plan subjective testing to study JVET-N0835 which points to some issues of selecting the test conditions for that.
Future meeting plans, expressions of thanks, and closing of the meeting
Future meeting plans were established according to the following guidelines:
Meeting under ITU-T SG 16 auspices when it meets (starting meetings on the Tuesday of the first week and closing it on the Wednesday of the second week of the SG 16 meeting – a total of 9 meeting days), and
Otherwise meeting under ISO/IEC JTC 1/SC 29/WG 11 auspices when it meets (starting meetings on the Wednesday prior to su...
References:
Cited:
Decisions
Jian Qing Zhu (Fujitsu R&D Center)
Citation
Abstract
This contribution provides a report on the subjective testing performed at the 14th JVET meeting. Subjective tests have been conducted for CE1-6, CE5-1, CE5-2, CE11-1, and CE11-2. A preliminary set of presentation slides has been generated. The report includes a description of the evaluation method, the testing procedure and the test results for the above-mentioned CEs.
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JVET-N0835 Core Experiment Viewing Test Procedure and Results [M. Wien, P. Hanhart]
The content of this report was presented in the context of CE1, CE5, and CE11.
List of actions taken affecting the draft text of VVC, the VTM, and 360Lib
The following is a summary, in the form of a brief list, of the actions taken at the meeting that affect the text of the VVC draft text, VTM or 360Lib description. Both technical and editorial issues are included. This list is provided only as a summary – details of specific actions are noted elsewhere in this report and the list provided here may not be complete and correct. The listing of a document number only indicates that the document is related, not that it was adopted in whole or in part. The description given in the “Tool” column is a best effort for the sake of understanding but may not precisely reflect the functionality of the tool.
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Cited:
Decisions
It was reminded that in cases where the JVET document is also made available as MPEG output document, a separate version under the MPEG document header should be generated. This version should be sent to GJS and JRO for upload.
Citation
Abstract not available in document
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JVET-N0809 BoG report on CE4 inter prediction and motion vector coding related contributions [H. Yang]
Discussed in Track B Monday 25 March 1045 (GJS)
Two sessions of BoG meetings were held, first one from 1615 to 2230 on Mar. 21, and second one from 0915 to 1515 on Mar. 22. 44 contributions have been reviewed.
JVET-N0334, JVET-N0335, JVET-N0336 and JVET-N0235 were identified as appropriate to be discussed in CE4 BoG by proponents, though not marked clearly in the title.
JVET-N0086 was identified to be more closely related CE9 during the discussion, and was recommended to be reviewed in CE9 BoG.
Normative changes:
JVET-N0085/N0335: unified MV rounding by setting the rounding offset to (1 << (shift – 1)) − 1 for rounding applied to an absolute value, to round toward zero.
Notes of Track B review:
At the Macao meeting, based on JVET-L0377 we made the software match the text by rounding tow...
Decisions
adopted
Adopted this aspect
See the notes in section 6.8.
Citation