JVET-N0004 JVET AHG report: Test material and visual assessment (AHG4) [T. Suzuki, V. Baroncini, R. Chernyak, P. Hanhart, A. Norkin, J. Ye]

The test sequences used for CfP/CTC are available on ftp://jvet@ftp.ient.rwth-aachen.de in directory “/jvet-cfp” (accredited members of JVET may contact the JVET chairs for login information).

Due to copyright restrictions, the JVET database of test sequences is only available to accredited members of JVET (i.e. members of ISO/IEC MPEG and ITU-T VCEG).

Not much activity was reported.

Regarding establishing a new structure at the test sequence repository.

There was not much progress since the last meeting. There was discussion in the last meeting that the current directory structure of test sequence ftp site is not good for the current activities. The ftp directory was created during the preparation of CfE/CfP and the same directory structure is still used. One possibility is to re-design the directory as follows, for example:

ctc/ : Contains the active test set of the common testing conditions

ahg/ : Contains subdirectories with sequences under consideration. The subfolder might be structured by meeting period (e.g. named by the doc-number of the corresponding meeting report?)

ce/ : Contains subdirectories for data exchange for specific CE (already implemented, see ce/JVET-{K,L}1031_Deblocking

upload : stays as before

During the last meeting, there was a comment that all sequences, all classes should be at the same place. But there is still meaningful to separate SDR, HDR, 360.

At the meeting, it was agreed that the coordinator has discretion over changes to the directory structure as needed.

The following related contributions were noted to have been submitted.

• JVET-N0386 AOV YUV4:4:4 sequence for VVC standardization and suggestions for class F [X. Xu, J. Ye, X. Li, S. Liu, L. Wu, C. Xie, K. Liu, B. Wang, P. Liu, K. Dong, Y. Kuang, W. Feng (Tencent)]
• JVET-N0502 Five SCC TGM sequences of both YUV4:4:4 and YUV4:2:0 formats [T. Lin, K. Zhou, S. Wang (Tongji), L. Zhao (Shaoxing)] [late]

The AHG recommended:

• To review related contributions
• To discuss further ftp directory structure
• To continue to collect new test sequences available for JVET with licensing statement