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In a vehicle license plate identification system, locating the license plate in the image or video of a vehicle is an important step before final recognition. In the proposed method care has been taken up to extract license plate of motorcycle (size of plate is small and double row plate), car (single as well as double row type), transport vehicle such as bus, truck, dirty plates as well as multiple...
This paper presents a technique that intends to recognize bangla characters from Bangladeshi automobile registration plates. Even though the recognition of characters from registration plates are nothing new but the conditions and circumstances surrounding the recognition process that is going to be discussed in due course of this paper is something i.e. worth looking into. In this paper we are dividing...
This paper presents an algorithm to detect and recognize the information contained in road panels. The aim of this work is to complement the functionality of a traffic signposting inspection system based on computer vision, which is able to collect data related to the maintenance state of traffic signs and panels automatically. In this context, not only a good visibility of the panels is vital for...
Slant vehicle license plate had the bad effect on its character segmentation and recognition. In this paper, a new method to remedy the effect based on mathematical morphology and Radon transformation was presented. According to the Radon transformation, the corresponding correction methods are presented for three inclined ways. Firstly, the edge of the plate picture is detected by the related operation...
In the vehicle license plate recognition system, the accuracy of location directly decides the effect of latter recognition part. Since the Chinese license plates have complex colors and characters, former methods only can locate certain bounding rectangle of the plate but not the minimum one. Therefore interferences like plate frame and vehicle light may be included in the rectangle, and lead to...
This paper presents a robust vehicle license plate detection algorithm based on multi-features, including mathematical morphology, rectangle features, edge statistics and characters features. Here we utilize the word ??robust?? to describe the proposed algorithm because it is not only adaptive to variance occasions, such as variance of the illumination, vehicle position, the color, both background...
This paper presents an effective license plate location algorithm, which employs Mathematical morphology to extract the number plate from the complicated-background image. Mathematical morphology is a new method which is applied in this filed of image treatments and pattern recognition. The basic mind is using structure element to measure and extract corresponding Shape of image and finally in reach...
As one of the focal points and hot problems of studying modern traffic engineering, the license plate recognition (LPR) has attracted more and more attention. In this paper, an experimental for the LRP of China-style license plates is presented. The proposed consists of four phases: license plate location, image preprocessing, character division, and character recognition. This is effective on solving...
This paper presents a novel texture descriptor based on line-segment features for text detection in images and video sequences, which is applied to build a robust car license plate localization system. Unlike most of existing approaches which use low level features (color, edge) for text/non-text discrimination, our aim is to exploit more accurate perceptual information. A - scale and rotation invariant...
Automatic number plate recognition is a real time embedded system which automatically recognizes the license number of vehicles. Such systems require the localization of number plate area in order to identify the characters present on it. This paper presents a feature based methodology for localization of Indian number plates. Since number plate standards are not strictly practiced in India, a large...
Based on the sharing features of a variety of license plates (LP), the vertical edge was first detected by Sobel edge detector. Then, some approaches were adopted to remove the invalid edge regarding the characteristics of edge grayscale jump and edge density, so that the regions having features of LP were preserved. Next, by horizontal and vertical projections and mathematical morphology (MM) operation,...
This paper presents a character segmentation method of vehicle license plate using modified vertical projection. After analyzing the reason of failure of traditional segmentation methods, the paper gives some methods to deal with character adhesion and segmentation mistakes, which improves the success probability of segmentation obviously. The most valuable feature of this new algorithm is that it...
Based on the sharing features of a variety of license plates (LP), the vertical edge was first detected by sobel color edge detector. Then, some approaches were adopted to adaptively remove the invalid edge regarding the characteristics of edge grayscale jump and edge density, so that the regions having features of LP were preserved. Next, by edge density template matching and the mean and variance...
A robust algorithm for license plate location is proposed, on the basis of connected edge analysis in conjunction with a novel adaptive preprocessing technique. Firstly, with non-conglutination feature of connected edge produced by license plate characters in binarized vertical edge image, filtering and row-scanning location are conducted. Adaptive preprocessing function is then introduced. An input...
License plate recognition (LPR) systems are a key to many traffic related applications such as road traffic monitoring or parking lots access control. We propose an automatic license plate recognition system for GCC license plates. The system presents an algorithm for the extraction of license plate and recognition of Arabic characters and numerals. Preliminary work on the system has been investigated...
In this paper, we have proposed a novel approach of license plate recognition system by adopting comprehensive features of license plate. Firstly, we originally combine the stroke width of license plate character with specified colors of license plate to segment the license plate region. Then, we use linear fitting method and projecting method to rectify the position of slant license plate. Furthermore,...
License plate detection plays an important role in license plate recognition (LPR) system. If license plate can be detected exactly, the character segmentation and recognition can be implemented more precisely and efficiently. In our observation, the illumination affects the result of detecting the license plate. The aim of this paper is to extract more than one license plate from an image and to...
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