JVET-K0399 CE6-related: Simplification of Shrink Transform (CE6.1.9) [K. Kawamura, Y. Kidani, Sei Naito (KDDI)] [late]

This is applied to transform length 64 (only). From the decoder perspective, the decoder does a length-32 inverse transform and then upscales the result to form the final residual. An encoder may be designed to perform a transform of input length 64 and keep the lower frequency coefficients or to downsample and perform a shorter transform.

In the CE the upscaling used an 8 tap filter. In this contribution it used value replication.

Text was not available.

The BMS uses a 64 point inverse transform with only the 32 lowest-frequency transform coefficients.

This processing treats this particular block length with a different processing in a way that did not seem clearly better and potentially inconsistent with the rest of the design.

JVET-K0416 Cross-check of JVET-K0399: CE6-related: Simplification of Shrink Transform [K. Abe, T. Toma (Panasonic)] [late]

CE7 related – Quantization and coefficient coding (7)

Contributions in this category were discussed Saturday 14 July 1045 (chaired by GJS).

JVET-K1035 Description of Core Experiment 15 (CE15): Palette mode [Y.-C. Sun, Y. H. Chao, X. Xu]

Discussion Tuesday morning Track B (JRO):

• Investigate the palette variant proposed in JVET-K0411 and HEVC-SCC palette mode
• Investigate interrelationship with CPR
• Study the complexity impact of the two palette variants and CPR (in coordination with CE8)

(Initial version presented Wednesday 1430 (GJS & JRO.)

Future meeting plans, expressions of thanks, and closing of the meeting

Future meeting plans were established according to the following guidelines:

• Meeting under ITU-T SG 16 auspices when it meets (starting meetings on the Tuesday or Wednesday of the first week and closing it on the Tuesday or Wednesday of the second week of the SG 16 meeting – a total of 6–7.5 meeting days), and
• Otherwise meeting under ISO/IEC JTC 1/SC 29/WG 11 auspices when it meets (starting meetings on the Wednesday or Thursday prior to such meetings and closing it on the last day of the WG 11 meeting – a total of 8.5 meeting days).

In cases where high workload is expected for a meeting, an earlier starting date may be defined.

Some specific future meeting plans (to be confirmed) were established as follows:

• Wed. 3 – Fri. 12 Oct. 2018, 12^th meeting under WG 11 auspices in Macao, CN.
• Wed. 9 – Fri. 18 January 2019, 13^th meeting under WG11 auspices in Marrakesh, MA.
• Tue. 19 – Wed. 27 March 2019, 14^th meeting under ITU-T auspices in Geneva, CH.
• Wed. 3 – Fri. 12 July 2019, 15^th meeting under WG11 auspices in Gothenburg, SE.

The agreed document deadline for the 12^th JVET meeting was agreed to be Monday 24 September...