LP	License plate
LPD	License plate detection
CRF	Conditional random field
RPN	Region proposal network
STN	Spatial transformer networks
IoU	Intersection over union
RoI	Region of interest
SSD	Single shot multibox detector
YOLO	You only look once
VGG	Visual geometry group
NMS	Non-maximum suppression
DLPD	Direct license plate detection
ALPD	Approximate license plate detection
LREA	Local region estimation and aggregation
MLPR	Multidirectional license plate refinement
FC	Four corners