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Optical touch image processing method

An image processing and optical touch technology, applied in image data processing, image enhancement, image analysis, etc., can solve the problems of lack of intelligence, poor real-time performance, etc., and achieve the effect of ensuring stability, reducing the amount of calculation and power consumption

Inactive Publication Date: 2012-06-27
无锡海森诺科技有限公司
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AI Technical Summary

Problems solved by technology

The general processing flow of optical touch is as follows: figure 1 As shown, it has the disadvantages of being unintelligent and requiring manual participation; poor real-time performance, and only passively deal with problems after encountering them

Method used

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  • Optical touch image processing method

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Embodiment Construction

[0023] The best embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 2 As shown, the optical touch image processing method includes the following steps:

[0025] Step 1. Start initialization;

[0026] Step 2, collect the image information (foreground) on the left and right sides through the image acquisition module (two cameras on the left and right); and store the initial image (when there is no finger touch) as the respective background;

[0027] Step 3, identify, compare the foreground image and the background image collected by the image acquisition module, and identify the finger position and number information in the one-dimensional image;

[0028] Step 4: Calculation and processing. If there is a finger touch in the image, calculate the two-dimensional coordinates of the finger touch point (that is, the coordinates on the display device) according to the finger position an...

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Abstract

The invention discloses an optical touch image processing method, comprising the following steps of: 1, starting initialization; 2, collecting information of a left image and a right image by using an image collection module, and saving initialized images into respective background; 3, identifying finger position and number information in a one-dimensional image according to the comparison between a foreground image and a background image collected by the image collection module; 4, performing calculation and processing, if a finger touch is displayed in the one-dimensional image, calculating two-dimensional coordinates of the finger touch position according to the finger position and number, and reporting the two-dimensional coordinates to an operation system or a piece of upper application software for subsequent processing; and 5, performing self-adaption processing, if no finger touch information is detected in the image in the step 3, then respectively performing evaluation and self-adaption processing on the left and the right images by using an image self-adaption processing module, and updating the backgrounds with the processed images, wherein the updated image information is used for subsequent frame processing.

Description

technical field [0001] The present invention relates to the technical field of optical touch, in particular to an optical touch image processing method. Background technique [0002] With the development of human-computer interaction technology, touch screens have been used in many occasions and fields as an input device that replaces or supplements ordinary keyboards and mice. Touch technology makes it possible for people to interact with computers and other equipment through touch gestures. Operators can use touch pens or fingers to draw specific gesture tracks on the touch screen to cooperate with the display to realize the interaction with computers and other equipment. Optical touch is one of the more popular touch technologies at present. [0003] One of the important factors affecting the stability of optical touch is the stability of the image. However, during transportation and handling, or even during use, the optical touch module may undergo mechanical changes a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06T7/00
Inventor 王德文丁三川
Owner 无锡海森诺科技有限公司
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