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Paper characteristic identification method and relative device

A technology of character recognition and characters, which is applied in the field of image processing, can solve problems such as the relative position fluctuation of characters, easy deviation of character positioning, and the inability of recognition equipment to accurately identify banknote numbers, etc., to achieve accurate segmentation and positioning, and improve accuracy Effect

Active Publication Date: 2015-06-17
GRG BAKING EQUIP CO LTD
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Problems solved by technology

Due to the influence of the newness of the banknote itself and the lighting value of the image acquisition equipment, the character positioning mainly has the following problems: the relative position of the character in the whole image fluctuates to a certain extent, on the one hand, the relative position of the character will have certain fluctuations when the banknote is printed. Floating; on the other hand, when the image is collected, the size of the inclination angle will cause a certain fluctuation in the relative position of the characters; due to the above reasons, the positioning of the characters is prone to deviation, which makes the recognition equipment unable to accurately recognize the banknote number

Method used

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  • Paper characteristic identification method and relative device
  • Paper characteristic identification method and relative device
  • Paper characteristic identification method and relative device

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Embodiment Construction

[0046] Embodiments of the present invention provide a paper character recognition method and a related device for accurately recognizing character strings in input paper.

[0047] see figure 1 , an embodiment of the input paper identification method in the embodiment of the present invention includes:

[0048] 101. Obtain image data of input paper;

[0049] The character recognition device acquires image data of the input paper; specifically, the input paper data may be banknotes; the image data includes pixels and gray value data of the pixels.

[0050] Preferably, the character recognition device can obtain white light grayscale image data to reduce the complexity of data processing; optionally, the character recognition device can also obtain color image data to enrich the characteristics of input paper recognition (some Banknotes have specific colors, and the color data helps to directly identify the currency); the specific type of image data obtained can be determined a...

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Abstract

Disclosed are a paper character recognition method and a related device, which are used for accurately recognizing a character string on a piece of input paper. The method includes: acquiring image data of a piece of input paper; performing skew correction on the image data; performing preliminary locating on a target character string of the image data to acquire a preliminary region of the target character string; locating a region in the preliminary region where the sum of gray values of pixel points is minimum; acquiring an all-region of the target character string; and performing character recognition on the target character string in the all-region.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a paper character recognition method and a related device. Background technique [0002] With the development of economy and society, there are more and more banknotes, and the circulation is more and more frequent. Banknotes are an important instrument. The number of genuine banknotes is unique and is a sign of the number of national banknotes printed, so it can be used as an identity certificate for banknotes. At present, the machine tools with banknote number recognition function in the market cannot meet the requirements of financial institutions in terms of recognition accuracy. When financial institutions process business, they finally need to use the method of manually copying banknote numbers to assist in identifying counterfeit currency. Therefore, it is necessary to develop a high-efficiency and high-accuracy automatic identification and recording system for banknote nu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/32G06V30/10G06V30/148G06V30/162
CPCG06V30/10G06V30/147G06V30/148G06V30/162
Inventor 向拓闻关玉萍徐朝阳
Owner GRG BAKING EQUIP CO LTD
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