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JVET-G0074 3 (m40918) pending
7th Meeting: Torino, July 2017 2017-07-15 10:24
AHG8: ECP with padding for 360-degree video
Authors: G. van der Auwera Qualcomm Muhammed Coban Qualcomm Marta Karczewicz Qualcomm
Abstract
The equatorial cylindrical projection (ECP), first introduced in JVET-F0026, is proposed with padding for efficient compression of 360-degree video and reduced seam artifacts in the rendered viewports. ECP projects the equatorial region of the sphere using the Lambert cylindrical equal-area projection, and projects the poles of the sphere onto square faces in the video picture to avoid inactive pixels. Without padding, the RA coding gain is 11.3% (e2e WS-PSNR) compared with the equirectangular projection in accordance with the JVET common test conditions for 360-degree video, while with the proposed padding the gain is only slightly reduced to 11.2%.
Meeting Notes
JVET-G0074 AHG8: ECP with padding for 360-degree video [G. Van der Auwera, M. Coban, M. Karczewicz (Qualcomm)]
References:
JVET-F0026 JVET-F1003 JVET-F1030
Cited:
JVET-G0133 X JVET-G1003 JVET-H1004 JVET-K1004 JVET-L1004 JVET-M1004 JVET-Q2004 JVET-S2004 JVET-T2004
ARCHIVE v1 :
HM-16.15-360Lib-3.0_G0074_ECP_nopad.xls HM-16.15-360Lib-3.0_G0074_ECP_pad.xls JVET-G0074.docx
Decisions
JVET-G0074 AHG8: ECP with padding for 360-degree video [G. Van der Auwera, M. Coban, M. Karczewicz (Qualcomm)]
Citation