Opened 5 years ago
Closed 5 years ago
#214 closed defect (fixed)
M0147 - Mismatch of an adopted element(25 points) in VTM
| Reported by: | JeevaRaj | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | VTM-4.1 |
| Component: | VTM | Version: | VTM-4.0 |
| Keywords: | Cc: | sriram.sethuraman@…, ksuehring, XiangLi, fbossen, jvet@… |
Description
As per the meeting notes following elements of DMVR is adopted
- Early termination w/ (0,0) position SAD between list0 and list1
- Block sizes for DMVR W*H>=64 && H>=8
- Split the CU into multiple of 16x16 sub-blocks for DMVR of CU size > 16*16
- Reference block size (W+7)*(H+7) (for luma)
- 25 points SAD-based integer-pel search (i.e. (+-) 2 refinement search range, single stage)
- Bilinear-interpolation based DMVR
- MVD mirroring between list0 and list1 to allow bilateral matching
- “Parametric error surface equation” based sub-pel refinement
- Luma/chroma MC w/ reference block padding (if needed)
- Refined MVs used for MC and TMVPs only
In current VTM version, Adaptive Search pattern is used instead of 25 points raster scan order based exhaustive search for +/- 2 refinement.
Change history (2)
comment:1 Changed 5 years ago by JeevaRaj
comment:2 Changed 5 years ago by XiangLi
- Resolution set to fixed
- Status changed from new to closed
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fix is provided in the following merge request
https://vcgit.hhi.fraunhofer.de/jvet/VVCSoftware_VTM/merge_requests/348