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Atsuro Ichigaya

Short name: A. Ichigaya

ichigaya.a-go@nhk.or.jp NHK 55 document(s)
Affiliations
NHK 2016-02-20 - 2026-07-15
Known Emails
Documents
JVET-AM0239
39th Meeting: Daejeon, KR, June 2025 2025-07-03 11:42
VVdeC with multi-layer decoding capability

S. Iwamura, S. Nemoto, Y. Kondo, A. Ichigaya (NHK)

JVET-AM0242
39th Meeting: Daejeon, KR, June 2025 2025-07-02 05:35
VVC playback on Chromium browser

S. Iwamura, S. Nemoto, Y. Kondo, A. Ichigaya (NHK)

JVET-AM0235
39th Meeting: Daejeon, KR, June 2025 2025-06-30 13:21
Implementation of error resilient transmission system for scalable services

S. Iwamura, S. Nemoto, Y. Kondo, A. Ichigaya (NHK)

JVET-AK0274
37th Meeting: Geneva, CH, January 2025 2025-01-17 09:48
Development of VVC live encoder with content layering capability

S. Nemoto, S. Iwamura, A. Ichigaya (NHK)

JVET-AK0236
37th Meeting: Geneva, CH, January 2025 2025-01-08 10:39
Use cases and requirement of next generation video coding standard for broadcasting services

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AG0329
33rd Meeting: by teleconference, CH, January 2024 2024-01-25 00:36
On update of Multilayer conformance test for multiple profiles signalling

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), F. Urban, P. de Lagrange (InterDigital)

JVET-AE0285
31st Meeting: Geneva, CH, July 2023 2023-07-17 16:59
AHG4: Preparation for content layering functional test

S. Iwamura, D. Arai, S. Nemoto, A. Ichigaya (NHK)

JVET-AE0181
31st Meeting: Geneva, CH, July 2023 2023-07-16 09:34
Scaling window support for VTM

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AE0104
31st Meeting: Geneva, CH, July 2023 2023-07-15 12:55
AHG10: GOP-based RPR encoder control using parallel resolution encoding

D. Arai, S. Nemoto, S. Iwamura, A. Ichigaya (NHK)

JVET-AE0172
31st Meeting: Geneva, CH, July 2023 2023-07-12 17:41
Update on multilayer coding support for VVenC

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AD0101
30th Meeting: Antalya, TR, April 2023 2023-04-22 07:56
Additional conformance tests of scaling window functionality for multilayer coding

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AD0102
30th Meeting: Antalya, TR, April 2023 2023-04-14 14:29
Proposed verification test plan for content layering

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AC0339
29th Meeting: by teleconference, DE, January 2023 2023-01-17 09:05
New higher level for multilayer coding

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AB0085
28th Meeting: Mainz, DE, October 2022 2022-10-25 08:44
AHG5: On conformance test of multilayer coding

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-AB0087
28th Meeting: Mainz, DE, October 2022 2022-10-23 18:42
Multilayer coding use cases for broadcasting and streaming applications

S. Nemoto, S. Iwamura, A. Ichigaya (NHK)

JVET-AB0086
28th Meeting: Mainz, DE, October 2022 2022-10-23 14:55
Optimized VVC encoder with multilayer coding capability

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-S0218
19th Meeting: by teleconference, June 2020 2020-06-26 05:30
4K HLG test sequences for HDR verification test

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-S0217
19th Meeting: by teleconference, June 2020 2020-06-23 02:33
On deblocking filter for ACT

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-R0380
18th Meeting: Teleconference, April 2020 2020-04-23 15:56
Scaling list for adaptive colour transform

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), K. Naser, P. de Lagrange, F. Le Leannec, P. Bordes (InterDigital)

JVET-R0433
18th Meeting: Teleconference, April 2020 2020-04-17 08:42
AHG 9: Combination of JVET-R0177/R0301 and JVET-R0074/R0232 on APS Signaling and Semantics Cleanup

K. Naser, F. Le Léannec, T. Poirier, P. de Lagrange (InterDigital), L. Li, X. Li, B. Choi, S. Wenger, S. Liu (Tencent), Z. Deng, L. Zhang, Y.-K Wang, K. Zhang (Bytedance), S. Iwamura, S. Nemoto, A. Ichigaya (NHK), N. Hu, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-R0132
18th Meeting: Teleconference, April 2020 2020-04-06 15:47
AHG9: On signalling of chroma related APS

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-R0130
18th Meeting: Teleconference, April 2020 2020-04-06 03:33
Cleanup of tC value derivation process for deblocking filter

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-Q0084
17th Meeting: Brussels, January 2020 2020-01-01 08:03
CE1-2: Deblocking for TPM (Triangular Partition Mode)

X.W. Meng, S.S. Wang, S.W. Ma(PKU), S. Iwamura, S. Nemoto, A. Ichigaya(NHK), X.Zheng(DJI)

JVET-Q0096
17th Meeting: Brussels, January 2020 2019-12-25 08:53
CE1-3.2: Boundary strength derivation for blocks with BCW

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), K. Andersson, R. Yu, J. Enjorn (Ericsson)

JVET-P0602
16th Meeting: Geneva, October 2019 2019-10-05 16:56
[AHG18][non-CE5] Boundary strength derivation for CUs with TPM

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-P0616
16th Meeting: Geneva, October 2019 2019-10-05 09:30
AHG13: Compression performance analysis for 8K HLG sequences

S. Nemoto, S. Iwamura, A. Ichigaya (NHK), K. Kazui (Fujitsu)

JVET-P0608
16th Meeting: Geneva, October 2019 2019-10-02 18:49
[AHG15] On scaling list for JCCR

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), P. de Lagrange, F. Le Leannec, E. Francois (InterDigital)

JVET-P0586
16th Meeting: Geneva, October 2019 2019-10-02 17:44
[AHG18][Non-CE5] Proposed cleanup of deblocking filter process

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), K. Andersson, R. Yu, J. Enhorn (Ericsson)

JVET-O0657
15th Meeting: Gothenburg, SE, July 2019 2019-07-08 17:37
AHG7: Tool-on/off experimetns for HLG CTC sequences

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-O0656
15th Meeting: Gothenburg, SE, July 2019 2019-07-06 19:03
Non-CE5: Boundary strength derivation for transform skipped block

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-O0655
15th Meeting: Gothenburg, SE, July 2019 2019-07-05 18:02
Non-CE3: On chroma DM derivation table for 4:2:2 chroma format

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-N0828
14th Meeting: Geneva, March 2019 2019-03-27 09:04
[AHG13] Compression performance analysis for 4K and 8K HLG test sequences

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-M0875
13th Meeting: Marrakech, January 2019 2019-01-14 14:55
Request for flexible unit size tile with implementation friendly restriction

T. Ikai, Y. Yasugi (Sharp), G. Bang (ETRI), Y.-W. Chen, X. Wang (Kwai Inc.), M. Coban (Qualcomm), C.-C. Lin (ITRI), P.-H. Lin (Foxconn), A. Ichigaya (NHK), K. Kawamura (KDDI), K. Kazui (Fujitsu), R. Sjöberg (Ericsson), R. Skupin, K. Sühring, Y. Sanchez, T. Schierl (HHI), L. Zhang (Bytedance),

JVET-M0482
13th Meeting: Marrakech, January 2019 2019-01-13 15:36
CE6-related: Implicit transform selection for Multi-hypothesis inter-intra mode

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-M0480
13th Meeting: Marrakech, January 2019 2019-01-10 07:41
CE6-related: Implicit transform selection for Multi directional LM

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-L0414
12th Meeting: Macao, October 2018 2018-10-26 03:49
CE11: Luma-adaptive deblocking filter (CE11.2.2)

A. Ichigaya, S. Iwamura, S. Nemoto(NHK)

JVET-L0411
12th Meeting: Macao, October 2018 2018-10-07 08:03
CE4-related: Angular merge prediction

S. Iwamura, S. Nemoto, A. Ichigaya(NHK)

JVET-L0413
12th Meeting: Macao, October 2018 2018-10-03 03:33
CE4-3.3: MVPlanar prediction

S. Iwamura, S. Nemoto, A. Ichigaya(NHK)

JVET-K0445
11th Meeting: Ljubljana, July 2018 2018-07-17 09:25
Compression performance report of VTM/BMS for 8K test sequences

S. Iwamura, S. Nemoto, A. Ichigaya

JVET-K0496
11th Meeting: Ljubljana, July 2018 2018-07-11 18:37
Crosscheck report of JVET-K0154 on encoding distortion evaluation

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-K0409
11th Meeting: Ljubljana, July 2018 2018-07-10 13:40
AHG4: On copyright of HLG test sequences

T. Suzuki (Sony), A. Ichigaya (NHK)

JVET-K0386
11th Meeting: Ljubljana, July 2018 2018-07-03 14:22
CE2-2.2.2: Luma-adaptive deblocking filter

S. Nemoto, S. Iwamura, A. Ichigaya(NHK)

JVET-K0349
11th Meeting: Ljubljana, July 2018 2018-07-03 07:17
CE4-2.11: MVPlanar prediction

S. Iwamura, S. Nemoto, A. Ichigaya(NHK)

JVET-J0027
10th Meeting: San Diego, April 2018 2018-04-17 18:32
Description of SDR and HDR video coding technology proposal by NHK and Sharp

S. Iwamura, S. Nemoto, K. Iguchi, A. Ichigaya (NHK), K. Misra, J. Zhao, A. Segall, W. Zhu, B. Choi, F. Bossen, M. Horowitz, P. Cowan, Y. Yasugi, T. Hashimoto, T. Zhou, T. Ikai, T. Chujoh, T. Aono (Sharp)

JVET-H0071
8th Meeting: Macau, October 2017 2017-10-19 02:46
Redundant flag removal on chroma intra mode coding

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-H0083
8th Meeting: Macau, October 2017 2017-10-16 08:16
AHG7: Cross-check of test sequences of 4K Hybrid Log-Gamma transfer characteristics (JVET-H0038)

S. Nemoto, S. Iwamura, A. Ichigaya (NHK)

JVET-H0068
8th Meeting: Macau, October 2017 2017-10-11 11:24
AHG7: HLG rate points for CfP anchor generation

S. Iwamura, S. Nemoto, A. Ichigaya(NHK)

JVET-G0103
7th Meeting: Torino, July 2017 2017-07-18 18:52
AHG7: Candidate rate points of HLG material for anchor generation

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-G0138
7th Meeting: Torino, July 2017 2017-07-16 15:39
Cross-check of JVET-G0084 on luma/chroma QP adaptation for HLG material

S. Iwamura, S. Nemoto, A. Ichigaya (NHK)

JVET-G0059
7th Meeting: Torino, July 2017 2017-07-14 02:50
AHG7: On the need of luma delta QP for BT.2100 HLG content

S. Iwamura, S. Nemoto, A. Ichigaya (NHK), M. Naccari (BBC)

JVET-C0105
3rd Meeting: Geneva, May 2016 2016-05-30 23:46
Request for actions regarding JEM complexity

G. Barroux (Fujitsu), T. Ikai (Sharp), Y. Bandoh (NTT), H. Yang (Huawei), A. Ichigaya (NHK), W. Hamidouche (INSA), R. Hashimoto (Renesas)

JVET-C0069
3rd Meeting: Geneva, May 2016 2016-05-28 12:45
Direction-dependent scan order with JEM tools

S. Iwamura, A. Ichigaya (NHK)

JVET-B0028
2nd Meeting: San Diego, February 2016 2016-02-20 17:30
Direction-dependent sub-TU scan order on intra prediction

S. Iwamura, A. Ichigaya (NHK)

JVET-AQ0191
43rd Meeting: Geneva, July 2026
Browser-based VVC player supporting CMAF/DASH streaming on Android

S. Iwamura, S. Nemoto, K. Unno, Y. Kondo, A. Ichigaya (NHK)

JVET-AQ0190
43rd Meeting: Geneva, July 2026
Prototype VVC decoder supporting dynamic layer switching during multi-layer bitstream playback

S. Iwamura, S. Nemoto, K. Unno, Y. Kondo, A. Ichigaya (NHK)