Handwriting separation and positioning method based on printing template

A positioning method, handwriting technology, applied in character and pattern recognition, instruments, computer parts, etc., to achieve the effect of increasing the difference

Active Publication Date: 2019-07-16
南京红松信息技术有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the field of text recognition, due to the large amount of text information to be processed, the traditional manual review method can no longer meet the needs; or the partial automatic review system used by students in exams, and the identification and entry system of bills, credentials, etc. A lot of time wasted on engagement while increasing productivity

Method used

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  • Handwriting separation and positioning method based on printing template
  • Handwriting separation and positioning method based on printing template
  • Handwriting separation and positioning method based on printing template

Examples

Experimental program
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Embodiment

[0054] Example: such as Figure 1~6 As shown, the method for handwriting separation and positioning, the method for handwriting separation and positioning, specifically includes the following steps:

[0055] (1) Image correction: binarize the blank template and the image containing the handwritten text, perform contour extraction and Hough transform detection to correct the inclination of the image;

[0056] (2) handwriting separation: the handwriting and the print in the picture containing the handwriting text are separated to obtain a pure handwriting picture;

[0057] S21 template matching: the blank template in step (1) is searched for a matching point by sliding the blank template through at least two matching algorithms, and the picture containing the handwritten text is roughly matched with the blank template;

[0058] S22 template cutting: cutting the blank template roughly matched with the picture containing the handwritten text in step S21, so that the size of the b...

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PUM

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Abstract

The invention discloses a handwriting separation and positioning method based on a printing template. The handwriting separation and positioning method specifically comprises the following steps: (1)image correction: carrying out binarization processing, contour extraction and Hough transform on a blank template and an image containing a handwriting text to detect and correct the inclination of the image; (2) handwriting separation: separating the handwriting and the printing form in the picture containing the handwriting text to obtain a pure handwriting picture; (3) text positioning: positioning the handwritten text in the obtained pure handwritten picture; (4) straight line detection: detecting whether a straight line exists in the handwritten text positioned in the step (3), and if so, detecting the specific position of the straight line and outputting the coordinate value of the straight line; and (5) target extraction: carrying out interference character screening on the pure handwritten text, and removing the interference handwritten characters to obtain the required handwritten characters. According to the method, the handwritten part containing the printing body and the handwritten picture at the same time is accurately positioned, and the accuracy of the text recognition system is improved.

Description

technical field [0001] The invention belongs to the technical field of text image processing, and in particular relates to a handwriting separation and positioning method based on a print template. Background technique [0002] With the development of science and technology, with the arrival of artificial intelligence, a new round of technological revolution has begun; computers have gradually replaced manual heavy work. For example, in the field of text recognition, due to the large amount of text information to be processed, the traditional manual review method can no longer meet the needs; or the partial automatic review system used by students in exams, and the identification and entry system of bills, credentials, etc. A lot of time wasted on engagement while increasing productivity. However, as a text recognition system, there has always been a high requirement for its recognition accuracy, which is also the focus of current research; text recognition is mainly divide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/68
CPCG06V30/2455G06V10/751
Inventor 田博帆吴冬华谢阳
Owner 南京红松信息技术有限公司
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