According to research on vehicle plate image processing,image pretreatment and license location of VLPR,the license location method based on technology of subtraction images and video edge detection is raised in this paper.

The license plate recognition system contains two main parts:license location and character recognition.

A license location algorithm based on threshold segmentation was provided,and a fast character recognition algorithm based on fuzzy relation is illustrated in detail.

Features fusion ruler for colorful images and its application in vehicle license plate location;

Method of vehicle license plate location fusing edge detection and HSV color feature;

Neural network based vehicle license plate location;

Method of fan-shaped scan license plate location based on MGD algorithm;

Algorithm of vehicle license plate location under nature scenes;

A novel approach for vehicle license plate location and tilt correction;

This paper presents a method for vehicle license plate localization using texture and wavelet analysis.

A fast license plate localization algorithm which is from coarse to precious is presented.

Study of Algorithms on Vehicle Plate Location and Characters Segmentation;

First of all, the paper introduces the research status on license Plate recognition system, and carry out a comprehensive exposition on four key modules about image Pre-processing, license plate location, character segmentation and identification.

Plate location is the first step in LPR,a wrong location will cause a wrong recognition.