Method and device for complex braille dot pattern drafting and embedded character input

A text input, dot matrix graphics technology, applied in editing/combining graphics or text, 2D image generation, image coding, etc., to solve the effect of low efficiency

Active Publication Date: 2016-08-10
HUAJIAN YUTONG TECH BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to provide a method and device for drawing complex Braille dot matrix graphics and inputting embedded characters. Solve the problem of "drawing" the received graphics, and improve the efficiency of braille graphics editing and typesetting

Method used

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  • Method and device for complex braille dot pattern drafting and embedded character input
  • Method and device for complex braille dot pattern drafting and embedded character input
  • Method and device for complex braille dot pattern drafting and embedded character input

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Embodiment Construction

[0059] The implementation process of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0060] A method for drawing complex Braille dot matrix graphics and inputting embedded characters of the present invention includes drawing and conversion of multi-order Bezier curves; conversion of pictures to Braille dot matrix; and three items of method for inputting embedded Braille characters; Through the input of these three types of content, the drawing of Braille dot matrix graphics is as simple and intuitive as normal graphics.

[0061] The drawing examples of these three types of graphics are illustrated below:

[0062] Such as figure 1 Shown is a schematic flow chart of the drawing and conversion method of multi-order Bezier curves, including the following steps:

[0063] 1) The starting position point P of the record curve 0 , end point P n (n>=2);

[0064] 2) Record the first inflection point P of the c...

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Abstract

The invention relates to a method and a device for complex braille dot pattern drafting and embedded character input and belongs to the technical field of pattern processing and analysis of computer science. The method comprises steps of multi-order Bezier curve drafting, bmp picture to braille dot conversion and embedded braille character input. Compared with the prior art, the drawing function is effectively combined, curve patterns and braille characters which are drafted are presented to a user in a WYSIWYG mode, the user is convenient to determine and observe direction of the patterns; patterns in a bmp format are presented to the user in a mode of characteristic point extraction, and problems of low efficiency and low accuracy rate existing in braille pattern edition and typesetting are solved.

Description

technical field [0001] The invention relates to a method and a device for drawing complex Braille dot matrix graphics and inputting embedded characters, and belongs to the technical field of graphics processing and analysis based on computer science. Background technique [0002] According to Document No. 25 [2012] of the China Disabled Persons' Federation, the number of blind people in my country reached 12.63 million by the end of 2010, making it the country with the largest number of blind people in the world. As we all know, the most important tool and way for the blind to receive education and acquire knowledge is Braille (also known as Braille) and books printed in Braille. According to statistics, there are only about 140 kinds of braille publications published every year. There are few types of braille books, slow updates and most of them are pure text, with almost no pictures. How to convert geometric figures into braille dot matrix graphics is one of the key techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/20G06T11/60G06T9/00
CPCG06T9/00G06T11/203G06T11/60
Inventor 黄河燕叶宇孟德纯
Owner HUAJIAN YUTONG TECH BEIJING CO LTD
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