In any object recognition system, there are two major problems that need to be solved,
that is detecting an object and recognizing an object in a scene, therefore
the quality of the number plate detector is vary important, since the recognition
subsystem uses the location of the number plate as a reference point when querying
the car database.
An introduction to number plate detection
The aim of this project is to develop a number plate detecting system
that locates’ and extract number plates from a video. We must detect a
single-frame in a video. The result is a purge number plate bitmap; it
can be fed to recognition system.
How does it work
use two times segmentation method to detect number plate. First segmentation should be
rough location of plate, just locate a region which have the number plate. And then
use edge detection and projection process carry out “finally locate”.