id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
214	M0147 - Mismatch of an adopted element(25 points) in VTM	JeevaRaj		"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.
"	defect	closed	major	VTM-4.1	VTM	VTM-4.0	fixed		sriram.sethuraman@… ksuehring XiangLi fbossen jvet@…