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Automatic identifying method for vehicle number plate through color separating treatment and reintegration result

A technology of automatic recognition and license plate, which is used in image data processing, image data processing, instruments, etc.

Inactive Publication Date: 2006-10-25
CHUNGHWA TELECOM CO LTD
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Problems solved by technology

[0003] This shows that above-mentioned existing mode still has many shortcomings, is not a good design, and urgently needs to be improved

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  • Automatic identifying method for vehicle number plate through color separating treatment and reintegration result
  • Automatic identifying method for vehicle number plate through color separating treatment and reintegration result

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Embodiment Construction

[0016] see figure 1 , the automatic license plate recognition method of the result of color separation processing provided by the present invention, mainly includes: the license plate automatic recognition module 11 for the red component gray scale matrix, the license plate automatic recognition module for the green component gray scale matrix Group 12. License plate automatic recognition module for gray-scale matrix images with blue components 13. License plate number encoding rule base for license plates with red components above a certain level 21. License plate number encoding rules for license plates with green components above a certain level library 22, the license plate number encoding rule library for license plates with blue components higher than a certain level 23, the correction and identification results for the gray-scale matrix of red components and the meter credibility module 31, the gray-scale matrix for green components Calibration identification result and...

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Abstract

An automatic license plate recognition method for color-separated processing and re-integrated results. It mainly performs automatic license plate recognition on individual gray-scale matrix images of red, green, and blue components of the vehicle color image, and then red, green, and blue. The individual license plate recognition results of each component are collected. Since the individual gray-scale matrix images of red, green, and blue components are combined and transformed into an integrated gray-scale matrix image, it is formed by summing up the three components of red, green, and blue in a certain proportion, so the three components of red, green, and blue There is at least one gray-scale matrix image in the individual gray-scale matrix images of the three components for comparison. At least one of the integrated grayscale matrix images transformed by merging is suitable for license plate recognition and better recognition results can be obtained; and because different license plate colors may correspond to different license plate number encoding rules.

Description

technical field [0001] The present invention relates to a license plate automatic recognition method for the results of color separation processing and aggregation, in particular to a method for individually graying out the three components of R (red), G (green) and B (blue) in a color image of a vehicle. An automatic license plate recognition method that performs automatic license plate recognition on Bitmap, and then collects the individual license plate recognition results of the three components of R, G, and B. Background technique [0002] Press, most of the existing license plate recognition methods are to identify the integrated gray-scale matrix image by merging and converting the individual gray-scale matrix images of the three components of R, G, and B. In this way, the identification result may have errors. [0003] This shows that above-mentioned existing method still has many shortcomings, is not a good design, and urgently needs to be improved. [0004] In vi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
Inventor 吴坤荣柳恒崧陈俊文
Owner CHUNGHWA TELECOM CO LTD
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