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Realization of vehicle license plate recognition system
no vote
Due to capture images of the camera angle problems with the body, the resulting picture is not the level of the license plate. In order to successfully carry out the subsequent identification of the license plate number, license plate angle must be corrected. There are three license plate tilt mode, namely horizontal tilt, tilt and vertical mixing tilt, due to set up the camera angle, vehicle movement and other reasons, the actual license plate image obtained for hybrid tilt, and therefore considering the horizontal and vertical directions when the tilt correction correction.
yanglei420528859746 0 0
1
Implementation of license plate recognition system
no vote
License plate recognition: this subject adopts template matching method to identify the license plate. In the process of recognition, according to the standard font, need not character segmentation and extraction, the existing license plate image can be processed directly, character recognition, feature matching for the license plate number of the license plate area, convenient identification and the recognition accuracy is improved greatly.
yanglei420528859746 0 0
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Realization of vehicle license plate recognition system
no vote
Research and implementation of this project in license plate recognition algorithms can be divided into three steps: license plate location, tilt correction and license plate recognition. Research priorities for the realization of license plate location and tilt correction algorithm
yanglei420528859746 0 0
1
License plate recognition system
no vote
License plate area tilt correction, license plate tilt correction procedures that can be used to image the plate boundary and the boundary is not parallel to the rotation of the image so that it is parallel, can be used for license plate recognition. Procedures can be carried out with the X-axis tilt-corrected image with no image distortion considered (the actual license plate images may be a parallelogram) and image angle with the vertical direction.
yanglei420528859746 0 0
1
Realization of vehicle license plate recognition system
4.1
Research and implementation of this project license plate recognition algorithm can be divided into three steps: license plate location, tilt correction and license plate recognition. Research priorities for the realization of license plate location and tilt correction algorithms.
License Plate Location: Try to use the car standard positioning method to determine the specific location of the license plate of the original grayscale image after image after preprocessing, the auxiliary mainstream license plate positioning is completed quickly and accurately locate the license plate area. Since the license area has obvious characteristics, the exact location is a relatively more concentrated approximately rectangular area, its gray values are significantly different with the surrounding area. The logo is similar to a feature of the license plate area, located in automotive head, covering the vehicle manufacture
yanglei420528859746 0 0
1
Realization of vehicle license plate recognition system
4.0
License Plate Location: Try to use the car standard positioning method to determine the specific location of the license plate of the original grayscale image after image after preprocessing, the auxiliary mainstream license plate positioning is completed quickly and accurately locate the license plate area. Since the license area has obvious characteristics, the exact location is a relatively more concentrated approximately rectangular area, its gray values are significantly different with the surrounding area. The logo is similar to a feature of the license plate area, located in automotive head, covering the vehicle manufacturer information signs, such as Audi, Volkswagen, etc., commonly known as the car emblem. Unlike license plates, car standard difficult to replace and occlusion. So car logo recognition system is intelligent transportation systems indispensable sub-module, has an essential role in confirming the identity of the vehicle. License plate
yanglei420528859746 1 106
1
Realization of vehicle license plate recognition system
no vote
Front introduced OpenCV squares example of locating plates algorithm, the effect is not very satisfactory. License plate location in many ways, where we start from the auto image texture feature to find license plate features different from the background is the key to locating. Look at the picture of a car, we'll find th
yanglei420528859746 0 0
1
Realization of vehicle license plate recognition system
no vote
License plate location we can be divided into the following steps:
1 pretreatment
Image preprocessing is mainly to some filtering and subsequent processing required gradients enhanced processing in order to filter out noise and increase in vertical direction.
yanglei420528859746 2014-09-11
yanglei420528859746 0 0
1
Research on vehicle license plate recognition algorithm
no vote
The algorithm of character segmentation and fuzzy recognition is used to recognize and query the license plate image, and the charge management of the lost car is carried out. Using OpenCV function.
yanglei420528859746 0 0
1
Vehicle license plate tilt correction
no vote
The program development environment: VC6.0 opencv1.0
Function: in order to achieve automatic vehicle tracking, detection and take photographs, location, identification, tracking and photographing is not achieved.
Function: object tracking in video, but it must be manually shut it, camera is a USB camera.
Open license plate pictures, location, vehicle license plate segmentation, segmentation, and character recognition.
Steps: the program's main interface: open the camera, turn off the camera, cutting pictures, license plate recognition
yanglei420528859746 2014-09-05
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