Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Calligraphy inverse hanging prevention method based on SIFT (Scale invariant feature Transform)

A technique of calligraphy and gradient histogram, applied in the field of image matching, which can solve problems such as inversion of Chinese characters

Inactive Publication Date: 2017-12-19
XIAN UNIV OF TECH
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a SIFT-based calligraphy anti-upside-down method, which solves the problem in the prior art that foreign friends put Chinese characters upside down because they do not understand Chinese characters

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calligraphy inverse hanging prevention method based on SIFT (Scale invariant feature Transform)
  • Calligraphy inverse hanging prevention method based on SIFT (Scale invariant feature Transform)
  • Calligraphy inverse hanging prevention method based on SIFT (Scale invariant feature Transform)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0135] First, four possible rotation angles (90°, 180°, 270°, 360°) are used as sample images, and then the relevant matching radicals are automatically found in the radical library for comparison. The results are as follows Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, it can be seen that the radical matching is successful, as a control experiment, Figure 10 Cases for incorrect matching of radicals. The test results are processed, the matching lines of the characteristic points of normal suspension angles are straight, and the matching lines of other abnormal suspension angles are crossed. Judging by these matching lines, the expected successful effect can be obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a calligraphy inverse hanging prevention method based on SIFT (Scale invariant feature Transform). The method comprises the following steps that: firstly, preprocessing a calligraphy font image to obtain the binary image of a calligraphy font, carrying out convolution operation, and importing a DOG (Difference of Gaussian) scale space operator to generate a DOG scale space; then, detecting the extreme value point of the calligraphy font image; and finally, carrying out operation to obtain a Sift feature descriptor, and matching the Sift feature descriptor with radicals in an existing radical library to obtain a proximate result. By use of the method, the problem in the prior art that foreign friends inversely put Chinese characters since the foreign friends do not understand Chinese characters can be solved.

Description

technical field [0001] The invention belongs to the technical field of image matching methods, and in particular relates to a SIFT-based calligraphy anti-hanging method. Background technique [0002] Chinese calligraphy works are an important part of Chinese traditional culture. They have a unique art form and are self-contained and unique in the world. Therefore, they are also deeply loved by foreign friends. Chinese calligraphy works can be seen in many foreigners' families, but due to the particularity of Chinese characters, most foreign friends do not know the composition of Chinese characters, and calligraphy works can sometimes be seen hanging upside down. The reason is that it is very likely that it was placed upside down when it was mounted because it did not understand Chinese characters. For example: a calligraphy work is hung upside down or rotated 90°, 180°, 270°, or the scroll is hung upside down, etc. It is ridiculous, it is very necessary to provide a method ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06K9/62G06K9/34G06K9/38
CPCG06V10/267G06V10/28G06V10/751G06F18/23
Inventor 张九龙赵庆屈小娥刘一波马晨喆
Owner XIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com