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Alexis M. Tourapis

Short name: A. M. Tourapis

Documents
JVET-AP0246
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-29 14:26
HEVC Profile Signalling Reference

A. M. Tourapis, D. Podborski, J. Kim, W. Zia (Apple)

JVET-AP0289
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-27 05:24
Editorial and Technical Issues in the ECFI SEI Message

A. M. Tourapis, D. Podborski (Apple Inc)

JVET-AP0283
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-26 09:51
On the Placement of Metadata and Coordination with File Format

D. Podborski, A. M. Tourapis, J. Kim (Apple Inc)

JVET-AP0284
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-26 07:24
Issues with the Bitstream Conformance Requirements Added to the ECFI SEI Message

A. M. Tourapis, D. Podborski (Apple Inc)

JVET-AP0263
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-24 23:53
Subpicture support in HEVC

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri (Apple)

JVET-AP0245
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-21 19:51
HDRTools software update for the Enhanced Colour Format Information and Picture Segmentation Information SEI messages

A. M. Tourapis, D. Podborski, J. Kim (Apple)

JVET-AP0244
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-21 19:50
MV-HEVC Conformance Bitstreams for Multiview Extended Profiles

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri, S. Choi, W. Zia (Apple)

JVET-AP0243
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-21 19:50
Bug Fixes and Profile Support for MV-HEVC Reference Software (HM)

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri, S. Choi, W. Zia (Apple)

JVET-AP0242
42nd Meeting: Santa Eulària, ES, April 2026 2026-04-21 19:50
On the Creation of Multiview 4:4:4 Profiles for HEVC

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri, S. Choi, W. Zia (Apple)

JVET-AO0227
41st Meeting: by teleconference, CH, January 2026 2026-01-20 05:25
AHG5: Updates on Multiview Reference Software

E. Asbun, S. Choi, S. Paluri, A. M. Tourapis (Apple)

JVET-AN0293
40th Meeting: Geneva, CH, October 2025 2025-10-01 23:31
Multiview 4:4:4 profiles for HEVC

S. Choi, S. Paluri, D. Podborski, E. Asbun, A. M. Tourapis (Apple)

JVET-AN0292
40th Meeting: Geneva, CH, October 2025 2025-10-01 23:31
Multiview HEVC Reference SW implementation status

S. Choi, S. Paluri, D. Podborski, A. M. Tourapis (Apple)

JVET-AM0048
39th Meeting: Daejeon, KR, June 2025 2025-06-29 11:03
AHG9/AHG2: Miscellaneous changes for HEVC

Y.-K. Wang, J. Xu (Bytedance), A. M. Tourapis, D. Podborski (Apple)

JVET-AM0324
39th Meeting: Daejeon, KR, June 2025 2025-06-28 04:07
Correction to the Alpha Channel Information SEI message processing order

D. Podborski, A. M. Tourapis (Apple Inc)

JVET-AK0325
37th Meeting: Geneva, CH, January 2025 2025-01-20 17:54
New SEI message for Segmentation Information

D. Podborski, A. M. Tourapis (Apple)

JVET-AJ0263
36th Meeting: Kemer, TR, November 2024 2024-11-06 16:12
AHG9: New Auxiliary Picture Type and SEI for Image Segmentation

A. M. Tourapis, D. Podborksi, S. Paluri, J. Kim (Apple)

JVET-AJ0219
36th Meeting: Kemer, TR, November 2024 2024-10-31 22:01
Subpicture support in HEVC (status update)

D. Podborski, A. M. Tourapis, S. Paluri, J. Kim (Apple)

JVET-AJ0213
36th Meeting: Kemer, TR, November 2024 2024-10-23 22:35
On Multiview Main 10 profiles

S. Paluri, D. Podborski, A. M. Tourapis (Apple)

JVET-AI0257
35th Meeting: Sapporo, JP, July 2024 2024-07-14 11:23
Derived chroma formats using layered HEVC

A. M. Tourapis, D. Podborski, S. Paluri, J. Kim (Apple)

JVET-AI0256
35th Meeting: Sapporo, JP, July 2024 2024-07-14 04:16
Subpicture support in HEVC

A. M. Tourapis, D. Podborski, S. Paluri, J. Kim (Apple)

JVET-AI0045
35th Meeting: Sapporo, JP, July 2024 2024-07-13 06:36
4:4:4 MV-HEVC profiles

A. M. Tourapis, D. Podborski, S. Paluri (Apple)

JVET-AH0216
34th Meeting: Rennes, FR, April 2024 2024-04-20 06:11
[AHG13] Performance of denoisers on Film Grain ground truth test set

S. Paluri, D. Podborksi, A. M. Tourapis(Apple)

JVET-AH0046
34th Meeting: Rennes, FR, April 2024 2024-04-17 11:36
On MV-HEVC profiles

Y.-K. Wang, H. Liu, L. Zhang, S. Jiao, C. Hu, J. Cui (Bytedance), A. M. Tourapis, D. Podborski, S. Paluri (Apple)

JVET-AG0290
33rd Meeting: by teleconference, CH, January 2024 2024-01-25 05:29
[AHG13] Compressibility analysis of Film Grain test sequences

S. Paluri, J. Kim, D. Podborski, A. M. Tourapis (Apple)

JVET-AG0201
33rd Meeting: by teleconference, CH, January 2024 2024-01-13 01:22
On MV-HEVC profiles

Y.-K. Wang, H. Liu, L. Zhang, S. Jiao, C. Hu, J. Cui, G. Xu (Bytedance), A. M. Tourapis, D. Podborski, S. Paluri (Apple)

JVET-AF0263
32nd Meeting: Hannover, DE, October 2023 2023-10-12 01:20
Suggested process for measuring Grain Fidelity using the Ground Truth test set

A. M. Tourapis, J. Kim, S. Paluri, D. Podborski (Apple Inc)

JVET-AF0262
32nd Meeting: Hannover, DE, October 2023 2023-10-12 01:20
New Film Grain Material based on a Ground Truth approach

D. Ugur, D. Podborski, A. M. Tourapis (Apple Inc)

JVET-AE0251
31st Meeting: Geneva, CH, July 2023 2023-07-12 06:43
Evaluating Denoising methods in the context of Film Grain Analysis/Synthesis

D. Podborski, D. Ugur, A. M. Tourapis

JVET-AE0250
31st Meeting: Geneva, CH, July 2023 2023-07-12 00:20
Film Grain Synthesis: Material Selection for Ground Truth Content Creation

D. Podborski, D. Ugur, B. Williams, L. Levinson, R. Molholm, A. M. Tourapis

JVET-AD0369
30th Meeting: Antalya, TR, April 2023 2023-04-22 12:05
Creation of New Film Grain Content using a Ground Truth Approach

D. Podborski, B. Williams, L. Levinson, R. Molholm, A. M. Tourapis

JVET-Z0164
26th Meeting: by teleconference, April 2022 2022-04-19 00:41
YCgCo-R: Request for new code points in CICP

D. Buitenhuis (Vimeo), A. M. Tourapis (Apple)

JVET-Y0072
25th Meeting: by teleconference, January 2022 2022-01-12 13:30
New Levels for HEVC and VVC

A. M. Tourapis, D. Singer, K. Kolarov (Apple)

JVET-Y0071
25th Meeting: by teleconference, January 2022 2022-01-11 19:37
New Test Content for Video Conferencing Applications

Z. Sinno, G. Desgouttes, A. M. Tourapis, D. Singer (Apple)

JVET-T0111
20th Meeting: by teleconference, October 2020 2020-10-08 19:38
YCgCo-R: Observations and findings

D. Buitenhuis (VideoLAN), A. M. Tourapis (Apple Inc)

JVET-T0054
20th Meeting: by teleconference, October 2020 2020-10-07 22:29
Some errata items for HEVC and AVC

Y.-K. Wang, L. Zhang (Bytedance), A. M. Tourapis (Apple)

JVET-T0056
20th Meeting: by teleconference, October 2020 2020-09-30 19:25
AHG9: SEI manifest and SEI prefix indication SEI messages

Y.-K. Wang (Bytedance), T. Stockhammer (Qualcomm), A. M. Tourapis, D. Singer (Apple)

JVET-S0269
19th Meeting: by teleconference, June 2020 2020-06-29 19:55
AHG17/AHG9: SEI manifest and SEI prefix indication SEI messages

Y.-K. Wang (Bytedance), T. Stockhammer (Qualcomm), A. M. Tourapis, D. Singer (Apple)

JVET-R0456
18th Meeting: Teleconference, April 2020 2020-04-20 08:11
Crosscheck of JVET-R0384 on Alternative film grain characteristics SEI message

A. M. Tourapis

JVET-Q0614
17th Meeting: Brussels, January 2020 2020-01-07 15:45
Film Grain Synthesis Support in VVC

A. M. Tourapis, K. Rapaka, D. Singer, K. Kolarov

JVET-O0756
15th Meeting: Gothenburg, SE, July 2019 2019-07-09 02:42
HDRTools: VTM software integration

D. Mehlem, A. M. Tourapis, D. Singer (Apple)

JVET-O0010
15th Meeting: Gothenburg, SE, July 2019 2019-07-03 11:24
JVET AHG report: Encoding algorithm optimizations (AHG10)

A. Duenas, A. M. Tourapis, C. Helmrich, S. Ikonin, A. Norkin, R. Sjöberg

JVET-M0010
13th Meeting: Marrakech, January 2019 2019-01-09 08:31
JVET AHG report: Encoding algorithm optimizations (AHG10)

A. M. Tourapis, A. Duenas, C. Helmrich, S. Ikonin, A. Norkin, R. Sjoberg

JVET-M0128
13th Meeting: Marrakech, January 2019 2019-01-02 20:41
AHG17: On reference picture management for VVC

Y.-K. Wang, Hendry (Huawei), S. Deshpande (Sharp), M. M. Hannusela (Nokia), G. Ryu, W. Choi (Samsung), X. Wang, Y.-W. Chen (Kawi), L. Zhang (Bytedance), P. Wu, M. Li (ZTE), S.-H. Kim (LG), J. Boyce (Intel), A. M. Tourapis, D. Singer (Apple), F. Edouard, P. Andrivon (Technicolor), Y.-W. Huang, C.-W. Hsu, C.-Y. Chen, T.-D. Chuang, L. Chen (MediaTek), K. Kawamura (KDDI), Y.-C. Sun, J. Lou (Alibaba)

JVET-L0010
12th Meeting: Macao, October 2018 2018-10-01 10:37
JVET AHG report: Encoding algorithm optimizations (AHG10)

A. Duenas, A. M. Tourapis, C. Helmrich, S. Ikonin, A. Norkin, R. Sjoberg

JVET-L0467
12th Meeting: Macao, October 2018 2018-09-29 06:48
Multi-component video coding: an extension for truly versatile video/image compression

A. M. Tourapis, Y. Su, K. Mammou, J. Kim, D. Singer, F. Robinet (Apple Inc)

JVET-H0009
8th Meeting: Macau, October 2017 2017-10-18 06:17
JVET AHG report: 4:4:4 support in JEM (AHG9)

A. M. Tourapis, X. Li

JVET-H0030
8th Meeting: Macau, October 2017 2017-10-12 22:04
BD-Rate/BD-PSNR Excel extensions

A. M. Tourapis, D. Singer, Y. Su, K. Mammou (Apple Inc)

JVET-F0076
6th Meeting: Hobart, March 2017 2017-03-28 03:33
Request for 4:4:4 support in the JEM software

M. Meyer, A. M. Tourapis, D. Singer (Apple)

JVET-AQ0229
43rd Meeting: Geneva, July 2026
AHG9: On the picture segmentation information SEI message — comments and proposed corrections (response to JVET-AQ0161)

S. Zhao, Y. He, L. Kerofsky, M. Karczewicz (Qualcomm), A. M. Tourapis, D. Podborski, J. Kim (Apple)

JVET-AQ0226
43rd Meeting: Geneva, July 2026
Comparison of the Object Mask Information (OMI) and Picture Segmentation Information (PSI) SEI messages

A. M. Tourapis, D. Podborski (Apple)

JVET-AQ0211
43rd Meeting: Geneva, July 2026
Film grain analysis and synthesis support in HDRTools

A. M. Tourapis, J. Kim, D. Podborski (Apple)

JVET-AQ0189
43rd Meeting: Geneva, July 2026
HEVC Profile Signalling Reference

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri, W. Zia (Apple)

JVET-AQ0188
43rd Meeting: Geneva, July 2026
Subpicture support in HEVC

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri (Apple)

JVET-AQ0187
43rd Meeting: Geneva, July 2026
Consolidating the HEVC Reference Software: Adding SHVC Support to the dev-multiview444 Branch

A. M. Tourapis, D. Podborski, J. Kim, S. Paluri, S. Choi, W. Zia (Apple)

JVET-AQ0186
43rd Meeting: Geneva, July 2026
MV-HEVC Conformance Bitstreams for the Multiview Monochrome 10/12 and Multiview 4:4:4 10/12 Profiles

A. M. Tourapis, D. Podborski, J. Kim (Apple)

JVET-AQ0086
43rd Meeting: Geneva, July 2026
AHG2/AHG9: Initial proposed text for a potential WD of VSEI v5

Y.-K. Wang, J. Xu, L. Zhang, K. Zhang (Bytedance), S. Deshpande, J. Samuelsson-Allendes (Sharp), Y. He, L. Kerofsky (Qualcomm), A. M. Tourapis, D. Podborski, J. Kim (Apple), E. François, C.-H. Demarty, A. Ak (InterDigital), S. Wenger, G. Teniou (Tencent), H. Tan (LGE)

JVET-AO0228
41st Meeting: by teleconference, CH, January 2026
AHG9: Remove Bitdepth and Chroma Constraints for YCgCo-Rx Code Points

S. Paluri, D. Podborski, A. M. Tourapis (Apple)