Search Results for "JVET-C0061"

Found 6 document(s)

Search documents

Use number, keyword, author, or MPEG number. Filter by meeting when needed.

Not signed in yet.
Showing 1-6 of 6 result(s)
3rd Meeting: Geneva, May 2016 2016-05-26 08:14
Decoder-side intra mode derivation
Authors: Xiaoyu Xiu InterDigital Yong He InterDigital Y. Ye InterDigital
Abstract
In this contribution, a decoder-side intra mode derivation (DIMD) approach is proposed based on JEM. The DIMD approach derives the intra prediction mode and reduces the overhead of intra mode signaling. Further, because no mode signaling is needed in DIMD, intra prediction can be performed at higher granularity than in JEM. For the intra CU with 2Nx2N partition, one DIMD flag is signaled. When the flag is true, the intra mode of the CU is derived with a template based method at both encoder and decoder. Additionally, when the DIMD mode is selected, another control flag is signaled to indicate if the intra mode is derived at PU-level or TU-level. For the intra CU with NxN partition, the intra modes derived by DIMD is used to replace one exiting MPM candidate for the intra mode coding of four PUs in this CU. It is reported that compared to JEM-2.0 anchor, the proposed method achieves on average 0.81%, XX%, XX% and XX% luma BD-rate reductions for AI, RA, LDB and LDP configurations, respectively; when compared to the anchor by disabling all JEM tools, the corresponding average BD-rate reductions reach 1.37%, 0.72%, 0.27% and 0.40%.
Meeting Notes
JVET-C0061 Decoder-side intra mode derivation [X. Xiu, Y. He, Y. Ye (InterDigital)]

In this contribution, a decoder-side intra mode derivation (DIMD) approach is proposed based on the JEM. The DIMD approach derives the intra prediction mode and is asserted to reduce the overhead of intra mode signalling. It is asserted that because the only mode signalling needed in DIMD is the indication to use the DIMD mode and the level at which the prediction operates, intra prediction can be performed at higher granularity than in the JEM. For an intra CU with 2Nx2N partition, one DIMD flag is signalled. When the flag is true, the intra mode of the CU is derived using a template-based method at both encoder and decoder. Additionally, when the DIMD mode is selected, another control flag is signalled to indicate whether the intra mode is derived at PU-level or TU-level. For the intra CU with NxN partition, the intra modes derived by DIMD are used to replace one exiting MPM candidate for the intra mode coding of four PUs in this CU. It is reported that, compared to the JEM-2.0 anchor, the proposed method achieves on average 0.81%, 0.47%, 0.21% and 0.23% luma BD-rate reductions for AI, RA, LDB and LDP configurations, respectively; when compared to the anchor by disabling all JEM tools, the corresponding average BD-rate reductions are reported as 1.37%, 0.72%, 0.27% and 0.40%.

A one-line-wide reference is used to determine an intra prediction direction for predicting using an L-shaped template which has a width of 2 or 4 samples, depending on the block size.

A fast search is used;...

References:
JVET-B0022 JVET-B0044 JVET-B0045 JVET-B1001 JVET-B1010
Cited:
JVET-C0001 JVET-C0094 X JVET-C1011 JVET-D0041 X JVET-D0097 JVET-D0098 JVET-D0165 X JVET-V0098
PATENTS:
US12219126B2 1.00 2025-02-04 EP3453174B1 0.34 2024-11-27 EP3453173B1 0.32 2021-08-25 EP4586605A2 0.30 2025-07-16 JP2025170304A 0.26 2025-11-18 US11134259B2 0.24 2021-09-28 EP3777167B1 0.22 2025-01-15 EP4465630A2 0.20 2024-11-20
ARCHIVE v3 :
DIMD_vs_HM_16.6_parallel.xlsm DIMD_vs_JEM2.xlsm JVET-C0061-r1.docx JVET-C0061.docx JVET-C0061_presentation.pdf
Decisions
comparison against an anchor with similar encoder complexity (using other than the fast search for intra mode), and also identifying whether decoder-side derivation still gives similar gains when the encoder would check more modes
Citation
4th Meeting: Chengdu, October 2016 2016-10-15 19:05
EE8: Cross-check of decoder-side intra mode derivation (JVET-C0061)
Authors: Alexey Filippov Huawei Vasily Rufitskiy Huawei

Abstract not available in document

Meeting Notes
JVET-D0041 EE8: Cross-check of decoder-side intra mode derivation (JVET-C0061) [Alexey Filippov, Vasily Rufitskiy (Huawei)] [late]
References:
JVET-C0061
ARCHIVE v2 :
EE8-TEST1.xlsm EE8-TEST2.xlsm JVET-D0041-v2.doc
Decisions
JVET-D0041 EE8: Cross-check of decoder-side intra mode derivation (JVET-C0061) [Alexey Filippov, Vasily Rufitskiy (Huawei)] [late]
Citation
3rd Meeting: Geneva, May 2016 2016-05-26 14:48
Cross-check of JVET-C0061: Decoder-side intra mode derivation
Authors: X. Ma Huawei Hyeong-Gyun Yang Huawei

Abstract not available in document

Meeting Notes
JVET-C0094 Cross-check of JVET-C0061: Decoder-side intra mode derivation [X. Ma, H. Yang (Huawei)] [late]
References:
JVET-C0061
ARCHIVE v1 :
JVET-C0094.doc JVET-C0094_HM16.6+DIMD VS HM16.6.xlsm JVET-C0094_JEM2.0+DIMD VS JEM2.0.xlsm
Decisions
JVET-C0094 Cross-check of JVET-C0061: Decoder-side intra mode derivation [X. Ma, H. Yang (Huawei)] [late]
Citation
4th Meeting: Chengdu, October 2016 2016-12-20 19:34
JVET common test conditions and evaluation procedures for 360° video
Authors: Elena Alshina Jill Boyce Adeel Abbas Y. Ye
Abstract
This document defines common test conditions and software reference configurations to be used in video codec performance evaluation for 360° video. These 360° video test conditions are also recommended for use in technical contributions to the 5th JVET meetings.
Meeting Notes
JVET-D1030 JVET common test conditions and evaluation procedures for 360 video [E. Alshina, J. Boyce, A. Abbas, Y. Ye] [2016-11-11] (MPEG N16515) A draft of this document was presented to the plenary Thursday afternoon. During the closing plenary on Friday, the document was approved without further review; no experts had complaints about the procedure. It was reminded that in cases where a JVET document is also made available as an MPEG output document, a separate version under the MPEG document header should also be generated. This version should be sent to GJS and JRO for review and upload. Title and Email Reflector Chairs Mtg Tool evaluation (AHG1) (jvet@lists.rwth-aachen.de) Coordinate the exploration experiments. Investigate interaction of tools in JEM and exploration experiment branches. Discuss and evaluate methodologies and criteria to assess the benefit of tools, and how to ease...
References:
JVET-B1010 JVET-D0021 JVET-D0026 JVET-D0027 JVET-D0028 JVET-D0030 JVET-D0039 JVET-D0040 JVET-D0071 JVET-D0143 JVET-D0179 JVET-D0195
Cited:
JVET-E0056 JVET-E0058 JVET-E0061 JVET-E0071 JVET-E0075 JVET-E0084 JVET-E0131 X JVET-E0134
ARCHIVE v4 :
HM-16.14-360Lib-1.0.xls JEM-4.1-360Lib-1.0.xls JVET-D1030_r1.docx
Decisions
Wen Zuo (ZTE)
Citation
3rd Meeting: Geneva, May 2016 2016-07-01 14:13
Description of Exploration Experiments on Coding Tools
Authors: Elena Alshina Jill Boyce Y. J. Chang Seung Hwan Kim Vadim Seregin Xiaoyu Xiu
Abstract
Documents describes Exploration Experiments (EEs) planned to be performed between JVET-C and JVET-D meetings in order to get better understanding of technologies considered for inclusion to the next version of JEM, analyse and verify their performance, complexity and interaction with existing JEM tools.
Meeting Notes
JVET-C1011 Description of Exploration Experiments on coding tools [E. Alshina, J. Boyce, Y. J. Chang, S.-H. Kim, V. Seregin, X. Xiu] [2016-06-23] See list of EEs in section 9.1 The version reviewed on Tuesday was again approved in the closing plenary on Wednesday. One minor change was made, adding Qualcomm as an additional contributing party in EE9 test 4. Some affine MC friendly content should be made available, as allowed by content rights, so that it can be used in EE4 tests. X. Ma (Huawei) was requested to contact Mathias Wien to enable uploading of such content to the JVET content repository. Once content has been made available, this should be announced on the JVET reflector. Title and Email Reflector Chairs Mtg Tool evaluation (AHG1) (jvet@lists.rwth-aachen.de) Coordinate the exploration experiments. Investigate interaction of tools in JEM and exploration experiment branches. Disc...
References:
JCTVC-W0039 JVET-B0054 JVET-C0022 JVET-C0040 JVET-C0042 JVET-C0043 JVET-C0047 JVET-C0053 JVET-C0054 JVET-C0061 JVET-C0062 JVET-C0063 JVET-C0066 JVET-C0068 JVET-C0071 JVET-C0095 JVET-C0102 JVET-C102
Cited:
JVET-D0097
ARCHIVE v6 :
JVET-C1011_v6.docx
Decisions
Minhua Zhou (Broadcom)
Citation
3rd Meeting: Geneva, May 2016 2016-05-26 11:20
JVET AHG report: Tool evaluation (AHG1)
Authors: Marta Karczewicz Elena Alshina
Abstract
This document reports the work of the JVET ad hoc group on Tool evaluation (AHG1) between the 2nd JVET meeting at San Diego, USA (20-26 February 2016) and the 3rd Meeting at Geneva, Switzerland (26 May - 1 June 2016).
Meeting Notes
JVET-C0001 JVET AHG report: Tool evaluation (AHG1) [M. Karczewicz, E. Alshina] This document reports the work of the JVET ad hoc group on Tool evaluation (AHG1) between the 2nd JVET meeting at San Diego, USA (20–26 February 2016) and the 3rd Meeting at Geneva, Switzerland (26 May – 1 June 2016). Joint Exploration Test Model Software (HM-16.6-JEM-2.0) was released 19th of March, 2016. The software can be downloaded at: https://jvet.hhi.fraunhofer.de/svn/svn_HMJEMSoftware/tags/HM-16.6-JEM-2.0 Algorithms included into JEM2.0 include Block structure Larger Coding Tree Unit (up to 256x256) and transforms (up to 64x64) Quadtree plus binary tree (QTBT) block structure only in EE SW branch Intra prediction improvements 65 intra prediction directions modified in JEM2.0 compared to JEM1.0 4-tap interpolation filter for intra prediction Boundary filter applied to other directions in addition to h...
References:
JVET-B1001 JVET-B1010 JVET-C0010 JVET-C0022 JVET-C0023 JVET-C0024 JVET-C0025 JVET-C0026 JVET-C0031 JVET-C0035 JVET-C0038 JVET-C0039 JVET-C0040 JVET-C0042 JVET-C0043 JVET-C0046 JVET-C0047 JVET-C0049 JVET-C0053 JVET-C0054 JVET-C0055 JVET-C0061 JVET-C0062 JVET-C0063 JVET-C0066 JVET-C0068 JVET-C0069 JVET-C0071 JVET-C0077 JVET-C0095
ARCHIVE v1 :
JVET-C0001.docx
Decisions
noted
It is also noted that the relatively high gain of class A2 may be misleading since some of these sequences are relatively easy to encode (rollercoaster, trafficflow).
Citation
New Search