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A Method of Accelerating Template Matching in Serial Number Recognition

A technology of template matching and serial number, which is applied in the field of intelligent recognition to achieve the effect of small amount of calculation, simple operation and obvious speed-up

Active Publication Date: 2019-12-06
CHENGDU HOLDTECS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to solve the problems raised in the above-mentioned background technology, the present invention proposes a preprocessing method with both small computational complexity and obvious speed-up, and a solution to effectively solve the time-consuming problem of template matching under the condition of a large font library:

Method used

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  • A Method of Accelerating Template Matching in Serial Number Recognition

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] A method for accelerating template matching in serial number recognition, which is completed by four steps of original template data dimension reduction processing, template data compression processing, importing matching data and processing to obtain results, the steps are as follows:

[0039] Known template data T 1 , T 2 ,... T n , the original data of each template is stored as a three-dimensional array 24*32*8, and the data to be matched is P(24,...

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Abstract

The invention discloses a method of accelerating template matching in serial number recognition. The method includes the four steps: dimensionality reduction of original template data; compression ofthe template data; introduction of matched data; and obtaining of a result through processing. The method is easy to operate, is low in operation complexity and fast in matching speed, and is suitablefor conditions in which a serial number recognition rate is high.

Description

technical field [0001] The invention belongs to the field of intelligent identification, and in particular relates to an acceleration method in the process of identifying RMB serial numbers on a DSP (Digital Signal Processor). Background technique [0002] The code on the RMB banknotes is also called the crown number. The "crown" is two or three English letters printed on the banknotes to mark the printing batch. It is arranged and printed by the banknote printing factory according to certain rules; the "number" is It is the serial number of Arabic numerals printed behind the crown, which is used to mark the sequence of each banknote in the batch with the same crown. The person in charge of the central bank said yesterday that the serial number of RMB banknotes is one of the measures of the central bank's management and control of RMB printing and production, and it is constantly adjusted and changed according to the needs of RMB printing and production management. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/0047G07D7/206
Inventor 贾宏宇杨海萍吴子文刘平罗颖
Owner CHENGDU HOLDTECS TECH
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