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Spatial three-dimensional positioning method

A technology of three-dimensional positioning and positioning method, which is applied in the directions of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve the problems of inability to perform positioning, difficult positioning operations, and the operator is easy to block shooting, etc., and achieves more convenience. The effect of point three-dimensional space positioning, simple positioning operation and simple structure

Inactive Publication Date: 2010-02-03
GUANGDONG VTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is that it is difficult to apply to large-screen touch screens. This is because this technical solution determines the corresponding coordinate position of its vertical projection on the screen according to the coordinates of the fingertip in the photographed picture. When the screen is large and the coordinates of the fingertip cannot be used When corresponding to certain parts of the screen, it is difficult for the operator to perform positioning operations on the entire screen range. At the same time, the operator's body easily blocks the camera's shooting, making it impossible to perform positioning

Method used

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  • Spatial three-dimensional positioning method

Examples

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Embodiment 1

[0037] A spatial three-dimensional positioning device that realizes a spatial three-dimensional positioning method, such as Picture 1-1 As shown, the device includes: a display screen 3, a target object 4 that is used for positioning operations and can extract feature points, an image processing module, a USB interface 5 and a computer module 6, and the image processing module is connected to the USB interface 5 and the computer module. 6 are connected in turn.

[0038] The image processing module includes a camera 1 and a camera 2, and the camera 1 and the camera 2 are placed in front of the display screen 3 and do not block the position of the display screen 3, and the angle between the optical axes of the two cameras and the vertical line of the display screen can be a right angle , or the angle between the optical axis of the camera and the vertical line of the display screen is an acute angle greater than 45 degrees. In this embodiment, the two cameras are placed in the u...

Embodiment 2

[0070] In this example, the target object such as Figure 6-1 As shown, it is directly operated with fingers, wherein the fingers are covered with two retractable rings with special colors, the purpose of which is to distinguish it from other objects in the application environment. Camera 1 and camera 2 capture special color points with a certain distance on the finger as two feature points. Such as Figure 6-1 Figures 601 and 602. Except for this, other components and their structures of this embodiment are the same as those of Embodiment 1. Certainly, the selection of the feature points of the target object can also be selected according to the special position points. For example, Figure 6-2 Among them, the feature points are 603 and 604; Figure 6-3 Among them, the feature points are 605 and 606; Figure 6-4 In , the feature points are 607 and 608.

[0071] In this embodiment, the method of capturing the feature points of the target object is: first eliminate interfe...

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Abstract

The invention discloses a spatial three-dimensional positioning method. A target object used for positioning and extracting characteristic points is adopted, the overlap region of shooting range of each camera covers certain space in front of a display screen, and the target object is operated in the overlap region. The positioning steps comprise: calibrating the camera; capturing the characteristic points of two or more than two target objects; determining the space coordinate of each object characteristic point; determining the space direction directional line of each target object; determining corresponding coordinate on the display screen along the space direction directional line of the target object, namely the positioning coordinate. The invention has simple positioning operation and can realize multiple-point three-dimensional positioning; when the display screen is large, by using the method of positioning correspondingly on the display screen along the space direction directional line of the target object by the invention, three-dimensional positioning can be easily realized, and thus, the invention is especially suitable for large-screen positioning.

Description

technical field [0001] The invention relates to the field of electronic display systems, in particular to a three-dimensional positioning method in space. 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 can bring great convenience to users, the positioning technology of electronic display system has been widely used in not only personal portable information products, but also information appliances, public information, electronic games and automated office equipment and other fields. The positioning devices of the existing electronic display systems have various implementation forms, but most of them are touch-type positioning forms, which realize positioning by directly touching the display screen. For example, the Chinese invention patent with the publication number CN1896919A discloses a contact projection screen and its implementa...

Claims

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Application Information

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IPC IPC(8): G06F3/042
Inventor 卢如西钟杰婷
Owner GUANGDONG VTRON TECH CO LTD
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