Method for realizing manual annotation in electronic system

An electronic system and writing paper technology, applied in the direction of electronic digital data processing, input/output process of data processing, using manual input to modify/create images, etc., can solve immature handwritten annotations and cannot achieve large-scale application and popularization , unable to achieve the effect of real handwriting, etc., to achieve the effect of reducing hardware costs

Inactive Publication Date: 2012-01-25
南京数模微电子有限公司
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Problems solved by technology

The use of the above-mentioned special pens to realize handwritten annotations has a common disadvantage, that is, it cannot achieve the handwriting effect of a real pen on paper. It is precisely because of this reason that handwritten annotations in electronic systems have always been an immature technology and can only be used. It is used for some simple writing, but cannot achieve large-scale application and popularization

Method used

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  • Method for realizing manual annotation in electronic system
  • Method for realizing manual annotation in electronic system
  • Method for realizing manual annotation in electronic system

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Embodiment Construction

[0020] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to figure 1 with figure 2 , the electronic system of the present invention realizes the method for handwritten annotation comprising the following steps:

[0022] a. Set up the camera and the set writing plane so that the central axis of the lens of the camera and the writing plane form an angle of θ degrees, and determine the writing area within the writing plane according to the viewing angle range of the camera.

[0023] The camera can be a camera of a computer, a mobile phone, a tablet for consumption, a tablet for learning, a tablet for an industry, or an e-book. The writing plane is the plane where the user writes notes, that is, the plane where the writing paper is placed. The angle between the central axis of the lens of the camera and the writing plane is θ. This angle should be greater than 0 degrees and less tha...

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Abstract

The invention discloses a method for realizing manual annotation in an electronic system and is characterized in that the method comprises the following steps of: a, arranging a camera and a set writing plane, and determining a writing area according to a principle that the visual range of the camera is within the writing plane; b, putting a piece of writing paper in the writing area, and manually annotating on the writing paper with a common pen by a user who faces to the camera; c, photographing the writing paper by the camera, and screening and processing the photographed image by a processing chip; and d, performing perspective correction on the initially annotated image by the processing chip to generate a digitalized final annotation image. The method for realizing the manual annotation in the electronic system has the advantages that the manual annotation in the electronic system can be effectively realized, the hardware cost for the manual annotation is reduced, a real writing experience can be supplied to a user, and the writing quality of the user is improved; and therefore, the quality of the manual annotation in the electronic system is improved.

Description

technical field [0001] The invention relates to a method for converting handwritten annotations into electronic files, in particular to a method for realizing handwritten annotations through an electronic system of a camera. Background technique [0002] At present, the handwritten annotation of the electronic system means that the user can input his handwritten handwriting into the electronic system to display or store it. Electronic systems may include, but are not limited to, personal computers, mobile phones, consumer tablets, study tablets, industry-specific tablets, e-books, and the like. Existing electronic systems all use the form of special pens to realize handwritten annotations. Special pens are used instead of real pens to give users a real feeling of writing, such as using a pointed pen-shaped object to touch and move on the touch screen to achieve handwritten annotations, or using a pen-shaped object based on the mouse principle to generate The trajectory of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/048G06T11/80G06F3/0488
Inventor 徐斌熊敬松
Owner 南京数模微电子有限公司
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