Search Results for "JVET-H0056"
Found 6 document(s)
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JVET-H0056 AHG8: An Update on RSP Projection [A. Abbas, D. Newman (GoPro)]
This contribution offers an modification of the previously proposed Rotated Sphere Projection (RSP) scheme. The proposed method draws inactive region on a 16x16 grid, resulting in better coding efficiency for block based coding. Additionally, a fix to WS-PSNR calculation method was proposed. Overall, a RA coding gain of 0.7% for Luma and 1.0% for Chroma is reportedly achieved over the RSP anchor (using WS-PSNR-E2E metric).
Compared to the previous RSP, the arc (circular shape) is drawn more precisely, which firstly increases the number of inactive pixels. As a second step, the arc is extended such that it is fully fitting into a 16x16 block (a kind of padding). This effectively increases the number of active pixels, but they are easier to code by a block based coder.
Decision (360lib): Replace the current RSP scheme by the method from JVET-H0056.
JVET-H0056 AHG8: An Update on RSP Projection [A. Abbas, D. Newman (GoPro)]
Decision (360lib): Replace the current RSP by the method from JVET-H0056.
General: It had been agreed by the 7th JVET meeting that the list of projection formats included in the CTC & 360Lib will not grow further, to avoid having so many that we can’t properly study them. If we want to add one, we need a decision to remove one. Anchors for projection formats are to be made available only with the HM and using ERP for the JEM. The outcome of this meeting is in line with this decision.
Project planning
Exploration Experiment planning
No EEs were established.
JEM description drafting and...
Abstract not available in document
JVET-H0079 Cross-check of JVET-H0056 on an update on RSP Projection [S. N. Akula, C. Pujara (Samsung)] [late]
The cross-checker confirmed the validity of results and also reported that the code is clean.
Quality assessment and metrics (4)
Abstract not available in document
JVET-I0006 JVET AHG Report: 360° video conversion software development (AHG6) [Y. He, K. Choi, V. Zakharchenko]
The document summarizes activities on 360-degree video content conversion software development between the 8th and the 9th JVET meetings.
The 360Lib-5.0 software package integrated all adoptions about projection format and metrics calculation, including:
- For projection formats and frame packing:
- Update on Rotated Sphere Projection (RSP) (JVET-H0056);
- For software:
- Fix for bug ticket #56;
- Bug fix for the interpolation weight derivation;
360Lib-5.0 related release:
360Lib-5.0rc1 with support of HM-16.16 and JEM-7.0 was released on Nov. 1st, 2017;
360Lib-5.0 with support of HM-16.16 and JEM-7.0 was released on Nov. 10th, 2017;
The 360Lib software is developed using a Subversion repository located at:
https://jvet.hhi.fraunhofer.de/svn/svn_360Lib/
The released version of 360Lib-5.0 can be found at:
https://jvet.hhi.fraunhofer.de/svn/svn_360Lib/tags/360Lib-45.0/
360Lib-5.0 testing results can be found at:
ftp.ient.rwth-aachen.de/testresults/360Lib-45.0
360Lib bug tracker
https://hevc.hhi.fraunhofer.de/trac/jem/newticket?component=360Lib
The table below lists the HM-16.16 based coding performance with different projection formats according to 360o video CTC (JVET-H1030) compared to PERP coding.
HM-16.16-360Lib-5.0 testing (HM PERP coding as anchor)
Projection | E2E WS-PSNR for all sequences | E2E WS-PSNR for 8K sequences | E2E WS-PSNR for 6K sequences | E2E WS-PSNR for 4K sequences | ||||||||
Y | U | V | Y | U | V | Y | U | V | Y | U | V | |
CMP | −2.4% | −0.7% | −1.0% | −5.1% | −3.0% | −3.5% | 0.1% | 3.3% | 2.8% | 0.5% | −1.6% | −1.2% |
AEP | −4.0% | −3.1% | −3.2% | −4.7% | −3.4% | −3.... | ||||||
Abstract not available in document
Abstract not available in document