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Touch screen stroke thickness identification method and device

A recognition method and touch screen technology, applied in the field of human-computer interaction, can solve the problems of increasing hardware cost and not conforming to people's writing habits, and achieve the effect of avoiding the increase of hardware cost

Inactive Publication Date: 2013-01-30
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology

[0005] Based on this, it is necessary to provide a touch screen stroke thickness recognition method and device for the above-mentioned traditional methods that do not conform to people's writing habits and increase hardware costs

Method used

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  • Touch screen stroke thickness identification method and device
  • Touch screen stroke thickness identification method and device
  • Touch screen stroke thickness identification method and device

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] see figure 1 Shown, a kind of touch screen stroke thickness identification method, comprises the following steps:

[0021] Step S101, collecting images of the surface of the touch screen in real time.

[0022] As a better embodiment, the process of collecting images on the surface of the touch screen in real time may specifically include: starting an infrared laser installed on the surface of the touch screen, and collecting images on the surface of the touch screen in real time through a camera installed at the rear of the rear projection touch screen .

[0023] see figure 2 As shown, the camera C is installed behind the rear projection display (touch screen), and the one-character infrared lasers D1, D2, D3, and D4 are respectively installed at the upper and lower borders of the display surface to ensure ...

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Abstract

The invention provides a touch screen stroke thickness identification method and a touch screen stroke thickness identification device. The method comprises the following steps of: acquiring an image on the surface of a touch screen in real time; judging whether pixel points of which the brightness values are greater than a preset brightness threshold value exist in the acquired image or not; and if so, calculating the sum and areal coordinates of the pixel points to take the sum and areal the coordinates of the pixel points as stroke thickness parameters and touch point coordinates. The touch screen stroke thickness identification method and the touch screen stroke thickness identification device effectively solve the problems of hardware cost increase caused by an additional electronic detection device and a communication device used in the conventional stroke thickness identification method are in accordance with the writing habit of a person, and are simple and feasible.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to a touch screen stroke thickness recognition method and a touch screen stroke thickness recognition device. Background technique [0002] At present, touch screens have been widely used in the field of human-computer interaction. And with the current trend of diversified applications of touch screen products, for touch screen products, applications that can distinguish and display the effect of changing the thickness of written strokes are becoming more and more important. Traditional touch screen stroke thickness identification methods mainly include the following two methods: [0003] 1. Use an electronic pressure-sensitive pen, and set and identify the thickness of the strokes according to the pressure when writing. This method of using electronic detection is not very consistent with natural writing habits on the one hand, and on the other hand, additional electroni...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
Inventor 郑金发
Owner GUANGDONG VTRON TECH CO LTD
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