6.2.9Other (2 – done)
JCTVC-O0056 MV-HEVC/SHVC: On conversion to ROI-capable multi-layer bitstream [T. Yamamoto, T. Ikai, T. Tsukuba (Sharp)]
Discussed Sun morning (GJS).
This contribution proposes support of bitstream conversion to ROI-capable multi-layer bitstream. The first part of the contribution describes a conversion process with enhancement-layer picture size modification. The second part of the contribution proposes normative changes to SHVC/MV-HEVC to support the described conversion process. The proposed change includes signalling of the information on phase shift between enhancement-layer luma pixel and reference-layer luma pixel. The proposed changes are asserted to help to keep the phase shift after cropping.
It was asked whether there are other changes that would be needed to support the intended functionality. The contributor said that they believe this would be all that is needed.
It was remarked that something somewhat different would be needed to support the phase calculation with ASRs.
Further study in AHG was encouraged to determine exactly what would be needed to support this concept.
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