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Multi-point positioning device and method for interactive electronic display system

An electronic display, multi-point positioning technology, applied in the parts of the TV system, the parts of the color TV, the TV and other directions, can solve the problems of lack of flexibility, can only be placed in the corner of the display screen, and poor applicability. , to achieve the effect of simple calculation method, simple structure and good applicability

Inactive Publication Date: 2011-01-26
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the technical solution disclosed in this patent is that it is only limited to single-point positioning, and in the positioning method disclosed by it, it is necessary to use the width and height of the display screen as known quantities to calculate the coordinates of the touch point. Such a positioning method The three cameras are constrained by the size of the display screen and can only be placed in the corners of the display screen, that is, the installation position of the cameras is strictly limited, so that the technical solution lacks flexibility and poor applicability in practical applications

Method used

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  • Multi-point positioning device and method for interactive electronic display system
  • Multi-point positioning device and method for interactive electronic display system
  • Multi-point positioning device and method for interactive electronic display system

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Embodiment 1

[0045] figure 2 and image 3 The principle of the two-point positioning scheme of the present invention is shown, by figure 2 and image 3 It can be seen that the two-point positioning method of the interactive electronic display system includes the following steps:

[0046] (1) Set the screen coordinate system; such as figure 2 As shown, set the lower left corner of the screen as the origin 0 (0, 0) of the coordinate system.

[0047] (2) Select two cameras arbitrarily as cameras for preliminary shooting, such as figure 2 As shown, select cameras 1 and 2 as the initial positioning cameras.

[0048] (3) Get the occluded object O 1 , O 2 The image of the color line on the display screen is compared with the original image of the color line when there is no occluder, and the shooting angle information of the two cameras 1 and 2 is extracted according to the position of the occlusion stripe formed on the color line and the position of the camera ,Such as figure 2 As ...

Embodiment 2

[0062] Figure 4 ~ Figure 8 The principle of the three-point positioning scheme of the present invention is shown, by Figure 4 ~ Figure 8 It can be seen that the three-point positioning method of the interactive electronic display system includes the following steps:

[0063] (1) if Figure 4As shown, establish a screen coordinate system, set the lower left corner of the screen as the origin of the coordinate system 0 (0, 0), use the straight line passing through the camera 3 as the reference, divide the screen into two areas A and B, and set the area A to place a occluder 0 1 , area B places two occluders 0 2 , 0 3 .

[0064] (2) if Figure 5 As shown, select cameras 1 and 2 as the initial positioning cameras for initial shooting.

[0065] (3) if Figure 5 As shown in , obtain the color line image when there is an occluder on the display screen, compare and analyze it with the original image of the color line when there is no occluder, and extract the color line acco...

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Abstract

The invention discloses a multipoint locating device of an interactive electronic display system and a locating method thereof. In the invention, the videography technology of the videography component is utilized; by different camera combinations, color line pictures shot by cameras being sheltered or not sheltered are compared; coordinate angle information is extracted to determine the locatingcoordinate of a plurality of barriers. The invention can realize multipoint locating, the position of the camera is unfixed; besides, the invention has the advantages of unfixed position of cameras, low cost, simple structure, wide application range, fast response speed and high reliability, etc.

Description

technical field [0001] The invention relates to the field of electronic display systems, in particular to a multi-point positioning device and method for an electronic display system. Background technique [0002] As a new type of computer input device, the positioning device of the electronic display system makes the human-computer interaction more intuitive. Because it brings great convenience to the user, the positioning technology of the electronic display system is not only applied to personal portable information products, but also to The field has covered various fields such as information appliances, public information, electronic games, and office automation equipment. The positioning devices of the existing electronic display systems have various forms, and each has its own shortcomings. For example, the Chinese invention patent with the publication number CN1942853A discloses a touch positioning panel with a transparent capacitive sensing medium. The capacitive s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042H04N5/232
Inventor 卢如西
Owner GUANGDONG VTRON TECH CO LTD
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