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32nd Meeting: Hannover, DE, October 2023 2023-12-28 22:28
Algorithm description of Enhanced Compression Model 11 (ECM 11)
Authors: Muhammed Coban Ru-Ling Liao Karam Naser J. Ström Li Zhang Gary Sullivan
Abstract
This document is Enhanced Compression Model 11 (ECM 11) software algorithm description. It includes the coding features and encoding methods implemented in ECM-11.0 software that are under coordinated exploration study by the Joint Video Exploration Team (JVET) of ITU-T VCEG and ISO/IEC MPEG as potential enhanced video coding technology beyond the capabilities of VVC.
Meeting Notes
JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11) [M. Coban, R.-L. Liao, K. Naser, J. Ström, L. Zhang] [WG 5 N 250] (2023-12-15)

New elements from notes elsewhere in this report:

  • Decision (SW): Adopt the new threshold in JVET-AF0111 to the next releases of ECM, VTM and VTM-11ecm.
  • Decision: Adopt JVET-AF0079 test 2.6c.
  • Decision: Adopt JVET-AF0066, test 2.9a.
  • Decision: Adopt JVET-AF0066, test 2.9a.
  • Decision: Adopt JVET-AF0073 test 3.1d.
  • Decision: Adopt JVET-AF0128 test 3.2.
  • Decision: Adopt JVET-AF0163 Test 3.4a.
  • Decision (SW): Adopt JVET-AF0057 test 3.5b. Not enabled in CTC.
  • Decision: Adopt JVET-AF0159 Test 3.6a.
  • Decision: Adopt JVET-AF0190 test 4.1b.
  • Decision: Adopt JVET-AF0112 Test 5.1a.
  • Decision: Adopt from JVET-AF0197 the part of luma residual tap in CCALF test 5.2b.
  • Decision: Adopt the CABAC initialization parameters from JVET-AF0133 Test 6.2. Also the script should be included in the ECM package, such that it can be used by other experts.
  • Decision: Adopt JVET-AF0059 (fix to interpolation filters).
  • Decision (SW): Adopt JVET-AF0101 (cleanup for decoder side intra prediction).
  • Decision (SW): Adopt JVET-AF0177 (ECM encoder memory reduction).
  • Decision (SW): Adopt JVET-AF0237 ECM encoder memory reduction).

It is noted that the list above may not be complete; if some adoption is missing that is recorded somewhere else in the meeting notes it shall also be considered included.

Remains valid – not updated: JVET-AC2026 Conformance testing for VVC operation range extensions (Draft 4) [D. Rusanovskyy, T. Hashimoto, H.-J. Jhu, I. Moccagatta, Y. Yu] (2023-04-14)

This was integrated with v1 (JVET-X2008) and delivered for ITU-T consent as H.266.1 2nd ed.

Primary editor for the ITU consent text: I. Moccagatta.

JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11) [M. Coban, R.-L. Liao, K. Naser, J. Ström, L. Zhang] [WG 5 N 250] (2023-12-15)

New elements from notes elsewhere in this report:

Decision (SW): Adopt the new threshold in JVET-AF0111 to the next releases of ECM, VTM and VTM-11ecm.

Decision: Adopt JVET-AF0079 test 2.6c.

Decision: Adopt JVET-AF0066, test 2.9a.

Decision: Adopt JVET-AF0066, test 2.9a.

Decision: Adopt JVET-AF0073 test 3.1d.

Decision: Adopt JVET-AF0128 test 3.2.

Decision: Adopt JVET-AF0163 Test 3.4a.

Decision (SW): Adopt JVET-AF0057 test 3.5b. Not enabled in CTC.

Decision: Adopt JVET-AF0159 Test 3.6a.

Decision: Adopt JVET-AF0190 test 4.1b.

Decision: Adopt JVET-AF0112 Test 5.1a.

Decision: Adopt from JVET-AF0197 the part of luma residual tap in CCALF test 5.2b.

Decision: Adopt the CABAC initialization parameters from JVET-AF0133 Test 6.2. Also the script should be included in the ECM package, such that it can be used by other experts.

Decision: Adopt JVET-AF0059 (fix to interpolation filters).

Decision (SW): Adopt JVET-AF0101 (cleanup for decoder side intra prediction).

Decision (SW): Adopt JVET-AF0177 (ECM encoder memory reduction).

Decision (SW): Adopt JVET-AF0237 ECM encoder memory reduction).

It is noted that the list above may not be complete; if some adoption is missing that is recorded somewhere else in the meeting notes it shall also be considered included.

Remains valid – not updated: JVET-AC2026 Conformance testing for VVC operation range extensions (Draft 4) [D. Rusanovskyy, T. Hashimoto, H.-J. Jhu, I. Moccagatta, Y. Yu] (2023-04-14)

This was integrated with v1 (JVET-X2008) and delivered for ITU-T consent as H.266.1 2nd ed.

Primary editor for the ITU consent text: I. Moccagatta.

ARCHIVE :
JVET-AF2025-v1.docx
Decisions
JVET-AF2025 Algorithm description of Enhanced Compression Model 11 (ECM 11)
adopted
Adopt JVET-AF0059 (fix to interpolation filters)
Citation