Intelligent identification method of banknote serial number based on dsp

A technology of intelligent identification and serial number, applied in the field of serial number identification, can solve the problems of high DSP performance requirements and budget real-time requirements, large amount of calculation of artificial neural network, complex edge calculation method, etc., to reduce complexity and improve The effect of recognition speed and accuracy improvement
CN106845542BActive Publication Date: 2019-12-03江苏阿瑞斯智能设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江苏阿瑞斯智能设备有限公司
Publication Date
2019-12-03

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Abstract

The present invention relates to the technical field of serial number identification, in particular to a DSP-based intelligent identification method for banknote serial numbers, the steps of which include: collecting images of banknotes; discriminating information such as currency type, currency value, front and back, and inversion of banknotes; Cut out the 1 / 4 image containing the serial number from the acquired banknote image; cut the 1 / 4 image to segment the image containing only the banknote part; roughly locate the serial number area of ​​the image of the banknote part in turn, Accurate positioning; obtain the binary image of the serial number area; separate the character image in the image of the serial number area, compare it with the character template image, and calculate the similarity to identify the character in the character image; for the identified Skeleton feature extraction is performed on the character image whose characters are confusing characters, and the bone feature is used for secondary discrimination to confirm the character corresponding to the character image; combined with the template comparison result and the bone feature discrimination result, the recognized serial number character is output.
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Description

technical field

[0001] The invention relates to the technical field of serial number identification, in particular to a DSP-based intelligent identification method for banknote serial numbers. Background technique

[0002] Most of the current mainstream serial number recognition methods use a single algorithm such as artificial neural network, bone feature, and feature point matching to realize the recognition of the serial number.

[0003] Chinese patent publication number is CN105261110A invention patent discloses a kind of efficient DSP banknote serial number recognition method, and its specific steps are:

[0004] a) Collect banknote images and find edge points of banknotes;

[0005] b) Discharge the abnormal edge points found at the edge of the banknote, and fit the edge straight line to obtain the slope and intercept of the upper, lower, left and right sides of the banknote;

[0006] c) Identify the face and direction of the banknote;

[0007] d) Locate the serial n...

Claims

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