Implementation of Mobile CLPR System Based on Smartphone

In this paper we propose a prototype of mobile car license plate recognition system for helping user identify car information on smartphone. The research presented here addresses special requirement and challenges in mobile application. The implementation of new architecture and system process flow with functions will help user real-time car image photograph, recognition and identification. We demonstrate the feasibility of this system by experimental results.

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Research and Design of the License Plate Recognition Systems Based on ARM S3C2440

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.333-335.2484 ◽

2013 ◽

Vol 333-335 ◽

pp. 2484-2488

Author(s):

Zhen Tao Qin ◽

Wu Nian Yang ◽

Ru Yang

Keyword(s):

Real Time ◽

Intelligent Transportation ◽

Recognition System ◽

Experimental Results ◽

Dynamic Monitoring ◽

License Plate ◽

License Plate Recognition ◽

Hough Transformation ◽

Recognition Systems ◽

Research And Design

In order to meet the need of real-time and dynamic monitoring of intelligent transportation, a License Plate Recognition (LPR) System Based on ARM S3C2440 is introduced and a vehicle license recognition system is designed and realized. This thesis comparatively explains the tasks and problems and dose analytic research across all phases of the system. Image binary and slant rectification also be discussed, which are difficulty points in LPR. According to the study of the license plate images, we use hough transformation and image reverse rotation , a inclined rectification method was proposed. The experimental results show that the approach is excellent in the accuracy with rapid speed and is in the robustness.

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A Configurable Tilt License Plate Correction Method Based on Parallel Lines

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.385-386.1429 ◽

2013 ◽

Vol 385-386 ◽

pp. 1429-1433 ◽

Cited By ~ 1

Author(s):

Zhong Yan Liang ◽

San Yuan Zhang

Keyword(s):

Recognition System ◽

Correction Method ◽

Selection Method ◽

Experimental Results ◽

License Plate ◽

License Plate Recognition ◽

Parallel Lines ◽

Bounding Box ◽

Bounding Boxes ◽

Straight Lines

The tilt license plate correction is an important part of the license plate recognition system. Traditional correction methods are based on one theory. It is difficult to use the advantages of different approaches. We propose some methods to help improve the tile license plate correction: a bounding box selection method based on similar height and a mutual correction method based on fitted parallel straight lines. Moreover, we use wide bounding boxes to segment touched characters. If the method based on parallel lines fails, another method, such as PCA-based one, can be used for complement. Experimental results show the proposed method outperforms others.

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