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Yao-Jen Chang

Short name: Y.-J. Chang

yjchang@qti.qualcomm.com Qualcomm 155 document(s)
Affiliations
Qualcomm 2019-03-19 - 2026-01-23 Foxconn 2018-07-11 - 2019-01-18 Foxconn Technology Group 2018-04-10 - 2018-04-20 ITRI 2016-02-20 - 2017-04-07
Known Emails
Documents
JVET-AO0220
41st Meeting: by teleconference, CH, January 2026 2026-01-08 03:13
AHG12: Optimizations for JVET-AN0271 software

Y.-J. Chang, C.-C. Chen, M. Coban, K. Cui, P. Garus, N. Hu, M. Karczewicz, P.-H. Lin, X. Meng, V. Menon, V. Seregin, Y. Shao, G. Verba, H. Wang, E. Ye, R. Yu, Y. Zhang, Z. Zhang, W. Zhu (Qualcomm)

JVET-AN0271
40th Meeting: Geneva, CH, October 2025 2025-10-07 19:18
Software optimization and complexity reduction of ECM

Y.-J. Chang, C.-C. Chen, M. Coban, K. Cui, P. Garus, N. Hu, M. Karczewicz, P.-H. Lin, X. Meng, B. Ray, V. Seregin, Y. Shao, G. Verba, H. Wang, E. Ye, R. Yu, Y. Zhang, Z. Zhang, W. Zhu (Qualcomm)

JVET-AN0085
40th Meeting: Geneva, CH, October 2025 2025-10-03 11:18
Response to the joint CfE on video compression with capability beyond VVC

M. Abdoli, P. Nikitin, F. Plowman, A. Tissier, R. G. Youvalari, M.-L. Champel (Xiaomi), Y.-J. Chang, C.-C. Chen, M. Coban, K. Cui, P. Garus, N. Hu, M. Karczewicz, J.-L. Lin, P.-H. Lin, X. Meng, B. Ray, V. Seregin, Y. Shao, G. Verba, H. Wang, E. Ye, R. Yu, Y. Zhang, Z. Zhang, W. Zhu (Qualcomm), F. Le Léannec, K. Naser (InterDigital), F. Wang (OPPO), Y. Kidani, H. Kato, T. Chujoh, K. Kawamura (KDDI), Z. Deng, K. Zhang, L. Zhang (Bytedance), A. Filippov, J. Konieczny, V. Rufitskiy, H. Qin, T. Dong, Z. Xu, K. Ding, C. Hollmann, I. Zupancic, D. Li (TCL), X. Xiu, X. Wang (Kwai)

JVET-AL0191
39th Meeting: Daejeon, KR, March 2025 2025-03-27 04:39
EE2-2.2: On cross-component intra prediction

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AK0202
37th Meeting: Geneva, CH, January 2025 2025-01-15 17:40
AHG12: On cross-component intra prediction

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AJ0061
36th Meeting: Kemer, TR, November 2024 2024-11-05 13:21
EE2-2.5: TIMD merge mode

M. Abdoli, R. G. Youvalari, F. Plowman, A. Tissier (Xiaomi), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm), J. Fu, J. Zhang, S. Ma (Peking University)

JVET-AJ0321
36th Meeting: Kemer, TR, November 2024 2024-11-05 09:42
AHG12: ECM complexity trade-offs

Y.-J. Chang, C.-C. Chen, M. Coban, K. Cui, P. Garus, N. Hu, H. Huang, M. Karczewicz, J.-L. Lin, P.-H. Lin, P. Nikitin, B. Ray, V. Seregin, G. Verba, H. Wang, E. Ye, R. Yu, Y. Zhang, Z. Zhang (Qualcomm)

JVET-AJ0180
36th Meeting: Kemer, TR, November 2024 2024-11-01 12:11
EE2-2.8abgh: Combinations of EE2-2.5, EE2-2.7a/c and EE2-2.1

M. Abdoli, R. G. Youvalari, F. Plowman, A. Tissier (Xiaomi), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm), Z. Fan, T. Chujoh, T. Ikai (Sharp), Y. Kidani, K. Kato, K. Kawamura (KDDI), J. Fu, J. Zhang, S. Ma (Peking University)

JVET-AJ0149
36th Meeting: Kemer, TR, November 2024 2024-10-31 15:14
EE2-2.2a/b: Intra merge mode extension with BV development

J. Fu, J. Zhang, S. Wang, S. Ma (PKU), C. Huang (ZTE), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm), M. Abdoli, R. G. Youvalari, F. Plowman, A. Tissier (Xiaomi)

JVET-AJ0341
36th Meeting: Kemer, TR, November 2024 2024-10-31 02:55
EE2-2.8i: Combination of EE2-2.5 and EE2-2.1

M. Abdoli, R.-G. Youvalari, F. Plowman, A. Tissier (Xiaomi), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm), J. Fu, J. Zhang, S. Wang, S. Ma (PKU), Y. Kidani, K. Kato, K. Kawamura (KDDI)

JVET-AI0143
35th Meeting: Sapporo, JP, July 2024 2024-07-17 08:18
EE2-2.4d: Combination of EE2 tests 2.1, 2.2 and 2.4a

D. Bugdayci Sansli, S. Blasi, J. Lainema (Nokia), K. Naser, Y. Chen, F. Le Léannec, M. Radosavljević, K. Reuze (InterDigital), J. Fu, J. Zhang, S. Ma (PKU), Y. Gao, C. Huang (ZTE), M. Abdoli, R. G. Youvalari, A. Tissier (Xiaomi), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AI0110
35th Meeting: Sapporo, JP, July 2024 2024-07-17 06:40
EE2-2.1/EE2-2.5: Merge-based intra prediction

M. Abdoli, R. G. Youvalari, A. Tissier (Xiaomi), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AI0314
35th Meeting: Sapporo, JP, July 2024 2024-07-12 05:05
Crosscheck of JVET-AI0224 (EE2-related: Intra merge mode extension with BV improvement)

Y.-J. Chang (Qualcomm)

JVET-AI0313
35th Meeting: Sapporo, JP, July 2024 2024-07-12 05:02
Crosscheck of JVET-AI0086 (EE2-2.1/2.5 related: History-based merge candidate for merge-based intra prediction)

Y.-J. Chang (Qualcomm)

JVET-AH0211
34th Meeting: Rennes, FR, April 2024 2024-04-19 08:48
Non-EE2: Intra merge mode

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AG0154
33rd Meeting: by teleconference, CH, January 2024 2024-01-17 23:14
EE2-1.1: Decoder Derived Cross-Component Prediction

Y.-J. Chang, P.-H. Lin, V. Seregin, J.-L. Lin, M. Karczewicz (Qualcomm)

JVET-AG0118
33rd Meeting: by teleconference, CH, January 2024 2024-01-16 14:40
EE2-1.9: Intra TMP fusion probing

J.-L. Lin, P.-H. Lin, H. Wang, Y.-J. Chang, Z. Zhang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AF0176
32nd Meeting: Hannover, DE, October 2023 2023-10-15 15:59
Non-EE2: Decoder Derived Cross-Component Prediction

Y.-J. Chang, P.-H. Lin, V. Seregin, J.-L. Lin, M. Karczewicz (Qualcomm)

JVET-AF0166
32nd Meeting: Hannover, DE, October 2023 2023-10-14 16:45
Non-EE2: Intra TMP fusion probing

J.-L. Lin, P.-H. Lin, Y.-J. Chang, Z. Zhang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AF0233
32nd Meeting: Hannover, DE, October 2023 2023-10-13 04:59
Crosscheck of JVET-AF0073 (EE2-3.1b: Cross-component prediction merge mode for chroma inter coding)

Y.-J. Chang (Qualcomm)

JVET-AE0271
31st Meeting: Geneva, CH, July 2023 2023-07-13 19:04
Crosscheck of JVET-AE0055 (AHG12: Sign prediction parameter configuration for low-delay conditions)

Y.-J. Chang (Qualcomm)

JVET-AD0375
30th Meeting: Antalya, TR, April 2023 2023-04-23 13:32
Crosscheck of JVET-AD0105 (Modifications of common test condition and ECM software)

Y.-J. Chang (Qualcomm)

JVET-AD0368
30th Meeting: Antalya, TR, April 2023 2023-04-22 16:43
Crosscheck of JVET-AD0100 (AHG12: Block vector guided CCCM)

Y.-J. Chang (Qualcomm)

JVET-AD0324
30th Meeting: Antalya, TR, April 2023 2023-04-20 20:38
Crosscheck of JVET-AD0188 (EE2-1.6b: Non-local cross-component prediction and cross-component merge mode)

Y.-J. Chang (Qualcomm)

JVET-AD0190
30th Meeting: Antalya, TR, April 2023 2023-04-15 00:40
EE2-1.23: Modification to MPM list derivation

H. Wang, Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AD0202
30th Meeting: Antalya, TR, April 2023 2023-04-14 22:31
EE2-1.2: CCCM using multiple downsampling filters

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AC0191
29th Meeting: by teleconference, DE, January 2023 2023-01-16 22:27
Non-EE2: Modification to MPM list derivation

H. Wang, Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AC0148
29th Meeting: by teleconference, DE, January 2023 2023-01-13 17:31
Non-EE2: CCCM using multiple downsampling filters

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AC0282
29th Meeting: by teleconference, DE, January 2023 2023-01-13 16:58
Crosscheck of JVET-AC0053 (AHG12: Simplified linear model solver)

Y.-J. Chang (Qualcomm)

JVET-AC0281
29th Meeting: by teleconference, DE, January 2023 2023-01-12 00:24
Crosscheck of JVET-AC0054 (EE2-1.12: Gradient and location based convolutional cross-component model (GL-CCCM) for intra prediction)

Y.-J. Chang (Qualcomm)

JVET-AC0147
29th Meeting: by teleconference, DE, January 2023 2023-01-04 23:32
EE2-1.13 and 1.14: CCCM using non-downsampled luma samples

H.-J. Jhu, C.-W. Kuo, X. Xiu, W. Chen, N. Yan, C. Ma, X. Wang (Kwai), V. Seregin, Y.-J. Chang, B. Ray, M. Karczewicz (Qualcomm)

JVET-AB0219
28th Meeting: Mainz, DE, October 2022 2022-10-25 12:13
Crosscheck of JVET-AB0174 (AHG12: Division-free operation and dynamic range reduction for convolutional cross-component model (CCCM))

Y.-J. Chang (Qualcomm)

JVET-AB0180
28th Meeting: Mainz, DE, October 2022 2022-10-23 17:55
Non-EE2: CCCM using non-downsampled luma samples

H.-J. Jhu, C.-W. Kuo, X. Xiu, W. Chen, N. Yan, C. Ma, X. Wang (Kwai), V. Seregin, Y.-J. Chang, B. Ray, M. Karczewicz (Qualcomm)

JVET-AB0220
28th Meeting: Mainz, DE, October 2022 2022-10-22 14:41
Crosscheck of JVET-AB0128 (EE2-related: CCCM template selection)

Y.-J. Chang (Qualcomm)

JVET-AB0187
28th Meeting: Mainz, DE, October 2022 2022-10-22 09:21
Non-EE2: No luma subsampling for CCCM

V. Seregin, Y.-J. Chang, B. Ray, M. Karczewicz (Qualcomm)

JVET-AB0143
28th Meeting: Mainz, DE, October 2022 2022-10-14 23:52
EE2-1.13: On CCCM improvement

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AA0136
27th Meeting: by teleconference, July 2022 2022-07-19 17:18
Non-EE2: On CCCM improvement

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-AA0175
27th Meeting: by teleconference, July 2022 2022-07-14 16:42
Crosscheck of JVET-AA0114 ([EE2-related] Division-free operation and mean-compensation for convolutional cross-component model (CCCM))

Y.-J. Chang (Qualcomm)

JVET-AA0157
27th Meeting: by teleconference, July 2022 2022-07-09 00:49
Crosscheck of JVET-AA0153 (EE2-1.6b: Convolutional cross-component intra prediction model + weighted chroma prediction)

Y.-J. Chang (Qualcomm)

JVET-AA0156
27th Meeting: by teleconference, July 2022 2022-07-09 00:44
Crosscheck of JVET-AA0057 (EE2-1.1a: Convolutional cross-component intra prediction model)

Y.-J. Chang (Qualcomm)

JVET-AA0135
27th Meeting: by teleconference, July 2022 2022-07-08 05:48
EE2-1.5: Chroma intra modes derived from collocated luma blocks and neighbouring chroma blocks

Y.-J. Chang, K. Cao, B. Ray, V. Seregin, M. Karczewicz (Qualcomm)

JVET-Z0143
26th Meeting: by teleconference, April 2022 2022-04-27 00:57
Non-EE2: Chroma intra modes derived from collocated luma blocks and neighboring chroma blocks

Y.-J. Chang, K. Cao, B. Ray, V. Seregin, M. Karczewicz (Qualcomm)

JVET-Z0130
26th Meeting: by teleconference, April 2022 2022-04-26 01:09
EE2-related: Motion compensation boundary padding

Z. Zhang, H. Huang, C.-C. Chen, Y.-J. Chang, Y. Zhang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm), F. Le Léannec, P. Andrivon, M. Radosavljević, E.Thomas (Xiaomi)

JVET-Z0167
26th Meeting: by teleconference, April 2022 2022-04-20 22:39
Crosscheck of JVET-Z0050 (EE2-1.3: Combined intra prediction tests)

Y.-J. Chang (Qualcomm)

JVET-Z0056
26th Meeting: by teleconference, April 2022 2022-04-20 14:07
EE2-2.4: Template matching based reordering for GPM split modes

C.-C. Chen, H. Huang, Y. Zhang, Z. Zhang, Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-Z0166
26th Meeting: by teleconference, April 2022 2022-04-18 20:36
Crosscheck of JVET-Z0061 (EE2-2.3: Template matching based OBMC)

Y.-J. Chang (Qualcomm)

JVET-Y0219
25th Meeting: by teleconference, January 2022 2022-01-21 05:29
Cross-check of JVET-Y0125 (AHG12: Enhanced bi-directional motion compensation)

H. Huang, Y.-J. Chang, C.-C Chen, M. Karczewicz, V. Seregin, Y. Zhang, Z. Zhang (Qualcomm)

JVET-Y0135
25th Meeting: by teleconference, January 2022 2022-01-14 00:51
Non-EE2: Template matching based reordering for GPM split modes

C.-C. Chen, H. Huang, Y. Zhang, Z. Zhang, Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-Y0164
25th Meeting: by teleconference, January 2022 2022-01-13 22:44
Crosscheck of JVET-Y0076 (Non-EE2: Template Matching-based OBMC Design)

Y.-J. Chang (Qualcomm)

JVET-Y0134
25th Meeting: by teleconference, January 2022 2022-01-12 19:42
EE2-3.4, EE2-3.5, EE2-3.6: Experimental results of the MV candidates reordering in candidate types based on template matching costs

Y.-J. Chang, H. Huang, V. Seregin, C.-C. Chen, M. Karczewicz (Qualcomm), R.-L. Liao, J. Chen, Y. Ye, X. Li (Alibaba), L. Zhao, K. Zhang, N. Zhang, L. Zhang (Bytedance), G. Laroche, P. Onno, R. Bellessort (Canon)

JVET-Y0132
25th Meeting: by teleconference, January 2022 2022-01-09 06:28
EE2-3.7: On the increased number of TM merge candidates

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-Y0116
25th Meeting: by teleconference, January 2022 2022-01-05 23:57
EE2-2.1: Extended MRL candidate list

K. Cao, Y.-J. Chang, B. Ray, V. Seregin, M. Karczewicz (Qualcomm)

JVET-X0145
25th Meeting: by teleconference, October 2021 2021-10-11 17:10
EE2-related: Template matching CIIP on top of EE2-3.1

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-X0142
25th Meeting: by teleconference, October 2021 2021-10-11 16:55
Non-EE2: Extended MRL candidate list

K. Cao, Y.-J. Chang, B. Ray, V. Seregin, M. Karczewicz (Qualcomm)

JVET-X0133
25th Meeting: by teleconference, October 2021 2021-10-08 18:20
EE2-related: MV candidate type-based ARMC

Y.-J. Chang, H. Huang, V. Seregin, C.-C. Chen, M. Karczewicz (Qualcomm), R.-L. Liao, J. Chen, Y. Ye, X. Li (Alibaba)

JVET-X0141
25th Meeting: by teleconference, October 2021 2021-10-08 07:26
EE2-3.1-related: CIIP with template matching

Z. Deng, K. Zhang, L. Zhang (Bytedance), X. Li, R.-L. Liao, J. Chen, Y. Ye (Alibaba), Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-X0134
25th Meeting: by teleconference, October 2021 2021-10-07 19:13
EE2-related: On the number of TM merge candidates

Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-W0122
23rd Meeting: by teleconference, July 2021 2021-07-09 09:18
EE2-related: On spatial MV propagation and neighboring template block access for template matching and multi-pass DMVR

C.-C. Chen, C.-T. Hsieh, H. Huang, V. Seregin, W.-J. Chien, Y.-J. Chang, Z. Zhang, Y. Zhang, M. Karczewicz (Qualcomm)

JVET-W0153
23rd Meeting: by teleconference, July 2021 2021-07-08 09:11
Crosscheck of JVET-W0088 (EE2-3.3: GPM with MMVD)

Y.-J. Chang, H. Huang (Qualcomm)

JVET-W0097
23rd Meeting: by teleconference, July 2021 2021-07-07 07:18
EE2-related: Combination of EE2-3.3, EE2-3.4 and EE2-3.5

X. Xiu, C.-W. Kuo, X. Wang (Kwai), R.-L. Liao, Y. Ye, X. Li, J. Chen (Alibaba), Z. Deng, K. Zhang, L. Zhang, N. Zhang, Y. Wang (Bytedance), Y.-J. Chang, H. Huang, V. Seregin, C.-C. Chen, M. Karczewicz (Qualcomm)

JVET-W0065
23rd Meeting: by teleconference, July 2021 2021-06-30 15:01
EE2: Results of Test 3.4 and Test 3.5

R.-L. Liao, Y. Ye, J. Chen, X. Li (Alibaba), Y.-J. Chang, H. Huang, V. Seregin, C.-C. Chen, M. Karczewicz (Qualcomm)

JVET-V0118
22nd Meeting: by teleconference, April 2021 2021-04-23 22:54
EE2-related: Extension of template matching to Affine, CIIP, GPM merge modes, and boundary sub-blocks

C.-C. Chen, V. Seregin, Y.-J. Chang, Z. Zhang, H. Huang, Y. Zhang, M. Karczewicz (Qualcomm)

JVET-V0165
22nd Meeting: by teleconference, April 2021 2021-04-23 00:11
Crosscheck of JVET-V0087 (EE2-Related: Improvements of Decoder-Side Intra Mode Derivation)

Y.-J. Chang (Qualcomm)

JVET-V0120
22nd Meeting: by teleconference, April 2021 2021-04-22 22:20
EE2: Tests of compression efficiency methods beyond VVC

Y.-J. Chang, C.-C. Chen, J. Dong, N. Hu, H. Huang, M. Karczewicz, B. Ray, V. Seregin, Y. Zhang, Z. Zhang (Qualcomm)

JVET-U0100
21st Meeting: by teleconference, January 2021 2021-01-12 07:32
Compression efficiency methods beyond VVC

Y.-J. Chang, C.-C. Chen, J. Chen, J. Dong, H. E. Egilmez, N. Hu, H. Huang, M. Karczewicz, J. Li, B. Ray, K. Reuze, V. Seregin, N. Shlyakhov, L. Pham Van, H. Wang, Y. Zhang, Z. Zhang (Qualcomm)

JVET-S0179
19th Meeting: by teleconference, June 2020 2020-06-25 04:09
AHG9: On conditional signalling of GCI fields

Y.-K. Wang, L. Zhang, Z. Deng, K. Zhang, K. Fan (Bytedance), J. Samuelsson, S. Deshpande, A. Segall (Sharp), M. Coban, V. Seregin, Y. He, Y.-J. Chang, M. Karczewicz (Qualcomm), Hendry, J. Nam (LGE), S. Wenger, B. Choi (Tencent), M. Zhou (Broadcom)

JVET-S0258
19th Meeting: by teleconference, June 2020 2020-06-22 22:28
AHG9: On sub-picture constraints

V. Seregin, Y. He, Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm), Y.-K. Wang (Bytedance), R. Skupin (HHI)

JVET-S0125
19th Meeting: by teleconference, June 2020 2020-06-18 23:59
AHG9: On sub-picture constraints

V. Seregin, Y. He, Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm)

JVET-S0235
19th Meeting: by teleconference, June 2020 2020-06-11 07:17
AHG9: On pps_cabac_init_flag signalling

M. Coban, V. Seregin, Y. He, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-S0221
19th Meeting: by teleconference, June 2020 2020-06-11 02:53
AHG9: On virtual boundaries

Y.-J. Chang, M. Coban, V. Seregin, N. Hu, M. Karczewicz (Qualcomm)

JVET-S0195
19th Meeting: by teleconference, June 2020 2020-06-11 02:00
AHG9: On GCI cleanups

Y. He, Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-S0126
19th Meeting: by teleconference, June 2020 2020-05-28 22:40
AHG8: On scaling window constraint

Y.-J. Chang, V. Seregin, Y. He, A. K. Ramasubramonian, M. Coban, M. Karczewicz (Qualcomm)

JVET-S0127
19th Meeting: by teleconference, June 2020 2020-05-26 21:39
AHG9: On general constraint info signalling

M. Coban, V. Seregin, Y. He, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-S0113
19th Meeting: by teleconference, June 2020 2020-05-25 00:08
AHG9: On new GCI flags

Y. He, Y.-J. Chang, N. Hu, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-S0128
19th Meeting: by teleconference, June 2020 2020-05-23 02:28
AHG12: On entry point signalling

M. Coban, V. Seregin, Y. He, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-S0112
19th Meeting: by teleconference, June 2020 2020-05-23 00:13
AHG9: On GCI semantic constraints

Y. He, N. Hu, Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-S0111
19th Meeting: by teleconference, June 2020 2020-05-23 00:13
AHG9: On GCI syntax structure

Y. He, Y.-J. Chang, N. Hu, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-R0287
18th Meeting: Teleconference, April 2020 2020-04-22 10:00
AHG9: On high level control parameters

H. Huang, Y.-J. Chang, M. Coban, W.-J. Chien, V. Seregin, M. Karczewicz (Qualcomm)

JVET-R0315
18th Meeting: Teleconference, April 2020 2020-04-11 20:15
AHG9: On mixed nal unit type signalling and PPS cleanup

M. Coban, V. Seregin, Y. He, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-R0285
18th Meeting: Teleconference, April 2020 2020-04-06 19:40
AhG12: On tile information signalling

Y.-J. Chang, Y. He, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-R0286
18th Meeting: Teleconference, April 2020 2020-04-04 01:32
AhG9: On general constraint information syntax

Y.-J. Chang, V. Seregin, Y. He, M. Coban, M. Karczewicz (Qualcomm)

JVET-R0284
18th Meeting: Teleconference, April 2020 2020-04-04 01:30
AHG12/AHG9: On independent subpicture signalling

Y.-J. Chang, Y. He, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0798
17th Meeting: Brussels, January 2020 2020-01-16 17:43
SPS level control over the number of merge candidates

L. Li, X. Li, S. Liu (Tencent), Y.-J. Chang, W.-J. Chien, V. Seregin, M. Coban, M. Karczewicz (Qualcomm), S. Esenlik, H. Gao, A. M. Kotra, B. Wang, H. Chen, H. Yang, A. Filippov, E. Alshina (Huawei), C.-W. Hsu, Y.-W. Huang, S.-M. Lei (MediaTek),

JVET-Q0788
17th Meeting: Brussels, January 2020 2020-01-12 14:39
AHG9: A joint solution of constraints on RPR

K. Zhang, L. Zhang, Y.-K. Wang, H. Liu, J. Xu, Z. Deng (Bytedance), T.-D. Chuang, O. Chubach, C.-Y. Chen, C.-W. Hsu, L. Chen, Y.-W. Huang, S.-M. Lei (MediaTek), Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0764
17th Meeting: Brussels, January 2020 2020-01-11 21:18
AHG9: Text for combination of wrap around offset and RPR

B. Choi, S. Wenger, S. Liu (Tencent), B. Heng, P. Chen, T. Hellman, W. Wan, M. Zhou (Broadcom), M. M. Hannuksela (Nokia), Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0781
17th Meeting: Brussels, January 2020 2020-01-11 12:48
AHG 9: On conditioning the presence of inter-/intra- related syntax elements in PH

X. Xu, B. Choi, L. Li, X. Li, S. Wenger, S. Liu (Tencent), S. Paluri, Hendry, J. Zhao, S. Kim (LGE), Z. Deng, L. Zhang, Y.-K. Wang (ByteDance), M. Coban, V. Seregin, Y.-J. Chang, M. Karczewicz (Qualcomm), S.-T. Hsiang, Y.-W. Huang, S.-M. Lei (MediaTek), J. Samuelsson, S. Deshpande, A. Segall (Sharp)

JVET-Q0336
17th Meeting: Brussels, January 2020 2020-01-10 18:40
AhG9: Cleanup for the maximum number of triangle merging candidates

Y.-J. Chang, V. Seregin, M. Coban, A. K. Ramasubramonian, M. Karczewicz (Qualcomm)

JVET-Q0332
17th Meeting: Brussels, January 2020 2020-01-09 05:56
AhG12: On the slice number signaling dependent on subpictures

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0335
17th Meeting: Brussels, January 2020 2020-01-07 03:46
AhG9: On the wraparound offsets

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0334
17th Meeting: Brussels, January 2020 2020-01-07 03:42
AhG8/AhG12: On the reference picture resampling for the subpictures

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0333
17th Meeting: Brussels, January 2020 2020-01-07 03:39
AhG12: On the subpicture-based scaling process

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0331
17th Meeting: Brussels, January 2020 2019-12-31 18:22
AhG8: Constraints on the picture scaling ratios

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0157
17th Meeting: Brussels, January 2020 2019-12-29 05:58
AHG12: On motion compensation for sub-pictures

V. Seregin, Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm)

JVET-Q0155
17th Meeting: Brussels, January 2020 2019-12-28 02:15
AHG9: On separate colour plane coding

V. Seregin, B. Ray, A. K. Ramasubramonian, Y.-J. Chang, M. Coban, G. Van der Auwera, M. Karczewicz (Qualcomm)

JVET-Q0154
17th Meeting: Brussels, January 2020 2019-12-28 01:01
AHG9: On picture header IRAP/GDR signalling

M. Coban, V. Seregin, A. K. Ramasubramonian, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-Q0153
17th Meeting: Brussels, January 2020 2019-12-28 01:00
AHG9: On picture header

M. Coban, V. Seregin, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-Q0152
17th Meeting: Brussels, January 2020 2019-12-28 00:59
AHG9/AHG12: Miscellaneous HLS topics

M. Coban, V. Seregin, Y.-J. Chang, M. Karczewicz (Qualcomm)

JVET-Q0151
17th Meeting: Brussels, January 2020 2019-12-28 00:57
AHG12: On entry point offset signalling

M. Coban, Y.-J. Chang, V. Seregin, A. K. Ramasubramonian, M. Karczewicz (Qualcomm)

JVET-P0427
16th Meeting: Geneva, October 2019 2019-10-10 13:35
AHG17: Bugfixes on constant slice header parameters

Y.-J. Chang, V. Seregin, M. Coban, A. Ramasubramonian, M. Karczewicz (Qualcomm)

JVET-P0429
16th Meeting: Geneva, October 2019 2019-10-06 17:20
AHG17: On log2_min_luma_coding_block_size_minus2

Y.-J. Chang, V. Seregin, M. Coban, A. Ramasubramonian, M. Karczewicz (Qualcomm)

JVET-P0430
16th Meeting: Geneva, October 2019 2019-10-04 16:55
AHG17: High level syntax cleanup on the syntax elements of transform skip

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-P0433
16th Meeting: Geneva, October 2019 2019-10-02 17:25
AHG12: On brick signaling

Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm)

JVET-P0431
16th Meeting: Geneva, October 2019 2019-09-25 09:17
AHG12: On subpicture ID

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-P0432
16th Meeting: Geneva, October 2019 2019-09-25 08:54
AHG12: On signaling and grid size of subpictures

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-P0428
16th Meeting: Geneva, October 2019 2019-09-25 07:04
AHG17: Improvement on signaling of constant slice header parameters

Y.-J. Chang, V. Seregin, M. Coban, M. Karczewicz (Qualcomm)

JVET-O0456
15th Meeting: Gothenburg, SE, July 2019 2019-07-05 11:56
Non-CE4: Grouping the syntax elements of motion vector differences

Y.-J. Chang, Y. Zhang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-O0455
15th Meeting: Gothenburg, SE, July 2019 2019-07-05 10:07
Non-CE8: On IBC merge mode

Y.-J. Chang, Y. Zhang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-O0454
15th Meeting: Gothenburg, SE, July 2019 2019-07-03 10:01
AHG12: On sub-bitstream extraction

Y.-J. Chang, M. Coban, V. Seregin, M. Karczewicz (Qualcomm)

JVET-O0452
15th Meeting: Gothenburg, SE, July 2019 2019-07-03 08:06
AHG12: On tile and brick partition

Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm)

JVET-O0453
15th Meeting: Gothenburg, SE, July 2019 2019-07-02 21:52
AHG12: On rectangular slice signaling

Y.-J. Chang, M. Coban, M. Karczewicz (Qualcomm)

JVET-O0645
15th Meeting: Gothenburg, SE, July 2019 2019-07-02 09:24
Non-CE4/8: Blending-off Switch for TPM Mode

C.-C. Chen, Y. Zhang, K. Reuze, Y.-J. Chang, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-O0198
15th Meeting: Gothenburg, SE, July 2019 2019-06-26 06:15
AHG12: On brick partitioning

M. Coban, A. Ramasubramonian, Y.-J. Chang, V. Seregin, M. Karczewicz (Qualcomm)

JVET-N0851
14th Meeting: Geneva, March 2019 2019-03-24 11:01
CE4-related: On merge list construction

C.-W. Hsu, T.-D. Chuang, C.-Y. Chen, Y.-W. Huang, S.-M. Lei (MediaTek), Y.-J. Chang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-N0448
14th Meeting: Geneva, March 2019 2019-03-21 15:24
Non-CE4: On MMVD signaling

Y.-J. Chang, W.-J. Chien, C.-C. Chen, M. Karczewicz (Qualcomm)

JVET-N0447
14th Meeting: Geneva, March 2019 2019-03-21 05:15
Non-CE4: On triangle merge mode

Y.-J. Chang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-N0449
14th Meeting: Geneva, March 2019 2019-03-20 16:44
CE4-related: Simplification on MMVD distance table

Y. Zhang, Y.-J. Chang, C.-C. Chen, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-N0647
14th Meeting: Geneva, March 2019 2019-03-20 15:37
Crosscheck of JVET-N0400 (CE4-related: Signaling of maximum number of triangle candidates)

Y.-J. Chang (Qualcomm)

JVET-M0525
13th Meeting: Marrakech, January 2019 2019-01-11 10:20
CE10-related: Simplification of intra prediction in CIIP

P.-H. Lin, Y.-J. Chang (Foxconn)

JVET-M0477
13th Meeting: Marrakech, January 2019 2019-01-04 11:04
CE2: Simplification of Affine constructed merge candidates (Test 2.2.6) and supplementary results

Y.-C. Yang, Y.-J. Chang (Foxconn)

JVET-M0098
13th Meeting: Marrakech, January 2019 2019-01-03 07:04
CE3: Joint test on MMLM (Test 2.2.1)

A. K. Ramasubramonian, G. Van der Auwera, T. Hsieh, V. Seregin, M. Karczewicz (Qualcomm), H.-J. Jhu, Y.-J. Chang (Foxconn)

JVET-M0476
13th Meeting: Marrakech, January 2019 2019-01-03 02:50
CE2: Control point MV offset for Affine merge mode (Test 2.2.5)

Y.-C. Yang, Y.-J. Chang (Foxconn)

JVET-M0475
13th Meeting: Marrakech, January 2019 2019-01-03 02:37
CE3: Multiple neighbour LM (Test 3.2.2)

H.-J. Jhu, Y.-J. Chang (Foxconn)

JVET-L0663
12th Meeting: Macao, October 2018 2018-10-08 09:43
Crosscheck of JVET-L0646 (CE4-related: Generalized bi-prediction improvements combined from JVET-L0197 and JVET-L0296)

T.-H. Li, Y.-J. Chang (Foxconn)

JVET-L0390
12th Meeting: Macao, October 2018 2018-10-07 14:41
CE4-related: Simplification of Affine merge common codebase

Y.-J. Chang, Y.-C. Yang (Foxconn)

JVET-L0562
12th Meeting: Macao, October 2018 2018-10-06 14:06
Crosscheck of JVET-L0099 (CE9-related: BIO simplifications)

T.-H. Li, Y.-C. Yang, Y.-J. Chang (Foxconn)

JVET-L0389
12th Meeting: Macao, October 2018 2018-10-05 15:30
CE4-related: Control point MV offsets for Affine merge mode

Y.-C. Yang, Y.-J. Chang (Foxconn)

JVET-L0563
12th Meeting: Macao, October 2018 2018-10-05 12:41
Crosscheck of JVET-L0320 (CE4-related: affine merge mode with prediction offsets)

T.-H. Li, Y.-C. Yang, Y.-J. Chang (Foxconn)

JVET-L0283
12th Meeting: Macao, October 2018 2018-10-03 05:40
CE3: Multiple reference line intra prediction (Test 1.1.1, 1.1.2, 1.1.3 and 1.1.4)

B. Bross, P. Keydel, H. Schwarz, D. Marpe, T. Wiegand (HHI), L. Zhao, X. Zhao, X. Li, S. Liu (Tencent), Y.-J. Chang, H.-Y. Jiang (Foxconn), P.-H. Lin, C.-C. Kuo, C.-C. Lin, C.-L. Lin (ITRI)

JVET-L0388
12th Meeting: Macao, October 2018 2018-10-01 10:52
CE3: Multiple neighbor-based linear model (Test 5.3.1)

H.-Y. Jiang, H.-J. Jhu, Y.-J. Chang (Foxconn)

JVET-K0175
11th Meeting: Ljubljana, July 2018 2018-07-14 09:04
CE3-related: Advanced MPM based on intra reference line selection scheme

H.-Y. Jiang, Y.-J. Chang (Foxconn)

JVET-K0482
11th Meeting: Ljubljana, July 2018 2018-07-14 07:30
CE3-related: MPM based multi-line intra prediction scheme

L. Zhao, X. Zhao, X. Li, S. Liu (Tencent), H.-Y. Jiang, Y.-J. Chang (Foxconn)

JVET-K0074
11th Meeting: Ljubljana, July 2018 2018-07-13 19:12
CE3-related: Combination of LAM (Test 4.1.1) and MNLM (Tests 4.1.3, 4.1.4, and 4.1.5)

Y.-J. Chang, H.-Y. Jiang (Foxconn)

JVET-K0432
11th Meeting: Ljubljana, July 2018 2018-07-13 12:25
Cross-check of JVET-K0101: CE4-related: Affine MVD Coding

T.-H. Li, H.-J. Jhu, Y.-J. Chang (Foxconn)

JVET-K0431
11th Meeting: Ljubljana, July 2018 2018-07-13 12:24
Cross-check of JVET-K0293: CE3-related: Simplifications for chroma intra coding

T.-H. Li, H.-Y. Jiang, Y.-J. Chang (Foxconn)

JVET-K0073
11th Meeting: Ljubljana, July 2018 2018-07-10 15:13
CE3: Multiple neighbor-based linear model (Tests 4.1.3, 4.1.4, and 4.1.5)

Y.-J. Chang, H.-Y. Jiang (Foxconn)

JVET-J0026
10th Meeting: San Diego, April 2018 2018-04-14 00:44
Description of SDR and HDR video coding technology proposal by Sharp and Foxconn

K. Misra, J. Zhao, A. Segall, W. Zhu, B. Choi, F. Bossen, M. Horowitz, P. Cowan, S. Deshpande, Y. Yasugi, T. Hashimoto, T. Zhou, T. Ikai, T. Chujoh, T. Aono (Sharp), Y.-J. Chang, H.-Y. Jiang, T.-H. Li, Y.-C. Yang (Foxconn Technology Group)

JVET-F0063
6th Meeting: Hobart, March 2017 2017-04-04 04:34
AHG5: Enhanced fast algorithm of JVET-E0078

P.-H. Lin, C.-L. Lin, Y.-J. Chang, C.-C. Lin, Y.-H. Ju (ITRI)

JVET-F0095
6th Meeting: Hobart, March 2017 2017-04-02 01:13
AHG5: Cross check of JVET-F0044 on Performance evaluation of Adaptive Search Range on JEM-5.0.1

P.-H. Lin, Y.-H. Ju, C.-C. Lin, Y.-J. Chang, C.-C. Lin (ITRI)

JVET-F0005
6th Meeting: Hobart, March 2017 2017-03-31 03:33
JVET AHG report: Fast encoding, encoding complexity investigation, and configuration settings (AHG5)

K. Choi, Y.-J. Chang, H. Huang, X. Li, P. Philippe, Y. Yasugi

JVET-E0005
5th Meeting: Geneva, January 2017 2017-01-12 15:02
JVET AHG report: Fast encoding, encoding complexity investigation, and configuration settings (AHG5)

K. Choi, Y.-J. Chang, H. Huang, L. Xiang, P. philippe, Y. Yukinobu

JVET-E0110
5th Meeting: Geneva, January 2017 2017-01-12 11:44
AHG4: Evaluation report of SDR test sequences (4K8-9 and 1080p1-5)

Y.-H. Ju, C.-C. Lin, C.-L. Lin, Y.-J. Chang, P.-H. Lin (ITRI)

JVET-E0112
5th Meeting: Geneva, January 2017 2017-01-12 11:42
AHG4: Evaluation report of aerial photography sequences

Y.-H. Ju, C.-C. Lin, C.-L. Lin, Y.-J. Chang, P.-H. Lin (ITRI)

JVET-E0078
5th Meeting: Geneva, January 2017 2017-01-12 03:19
AHG5: improved fast algorithm in JEM-4.0

P.-H. Lin, Y.-J. Chang, C.-L. Lin, C.-C. Lin(ITRI)

JVET-D0171
4th Meeting: Chengdu, October 2016 2016-10-27 05:02
Cross-check of JVET-D0108 Improvement of chroma deblocking filter

P.-H. Lin, Y.-J. Chang, C.-C. Lin, C.-L. Lin (ITRI)

JVET-D0130
4th Meeting: Chengdu, October 2016 2016-10-27 05:01
EE8: Cross-check of decoder-side intra mode derivation (Test 7)

P.-H. Lin, Y.-J. Chang, C.-C. Lin, C.-L. Lin (ITRI)

JVET-D0127
4th Meeting: Chengdu, October 2016 2016-10-20 15:06
AHG5: Removal of software redundancy for intra mode decision in JEM 3.0

Y.-J. Chang, P.-H. Lin, C.-L. Lin, C.-C. Lin(ITRI)

JVET-D0099
4th Meeting: Chengdu, October 2016 2016-10-14 09:27
EE6: Arbitrary Reference Tier for Intra Directional Modes, with Supplementary Results

Y.-J. Chang, P.-H. Lin, C.-L. Lin, C.-C. Lin (ITRI)

JVET-D0167
4th Meeting: Chengdu, October 2016 2016-10-14 07:31
Evaluation report of 1080p test sequences

C.-C. Lin, C.-L. Lin, Y.-H. Ju, Y.-J. Chang, P.-H. Lin (ITRI)

JVET-D0131
4th Meeting: Chengdu, October 2016 2016-10-10 09:08
Suggested Software for Multiple Reference Tiers in EE6

Y.-J. Chang, P.-H. Lin, C.-L. Lin (ITRI), J. Li, B. Li, J. Xu (Microsoft)

JVET-C0043
3rd Meeting: Geneva, May 2016 2016-05-25 21:32
Arbitrary reference tier for intra directional modes

Y.-J. Chang, P.-H. Lin, C.-L. Lin, J.-S. Tu, C.-C. Lin (ITRI)

JVET-C0097
3rd Meeting: Geneva, May 2016 2016-05-25 21:29
Cross-check of JVET-C0071 (Multiple line-based intra prediction)

P.-H. Lin, Y.-J. Chang, J.-S. Tu, C.-C. Lin, C.-L. Lin, (ITRI)

JVET-B0052
2nd Meeting: San Diego, February 2016 2016-02-21 21:55
Report of evaluating Huawei surveillance test sequences

C.-C. Lin, J.-S. Tu, Y.-J. Chang, C.-L. Lin (ITRI)

JVET-B0053
2nd Meeting: San Diego, February 2016 2016-02-20 02:32
Report of evaluating Huawei UGC test sequences

J.-S. Tu, C.-C. Lin, Y.-J. Chang, C.-L. Lin (ITRI)

JVET-O0661
15th Meeting: Gothenburg, SE, July 2019
Non-CE4/8: Simplification of CIIP on IBC mode

Y. Zhang, C.-C. Chen, Y.-J. Chang, W.-J. Chien, M. Karczewicz (Qualcomm)

JVET-AI0315
35th Meeting: Sapporo, JP, July 2024
Crosscheck of JVET-AI0224 (EE2-related: Intra merge mode extension with BV improvement)

Y.-J. CHANG