Screen locating control method and device

A technology of positioning control and screen, which is applied to the input/output process of instruments, electrical digital data processing, and data processing, etc., can solve the problems of inconvenient use, not very intuitive use, inconvenient implementation, etc., and achieve the effect of convenient use.

Inactive Publication Date: 2011-11-02
伍斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the mouse and trackpad also have outstanding shortcomings: the operation is not intuitive and natural
The advantage of this method is that it is easy to use, and there is no need to attach any other equipment except the camera; the disadvantage is that the positioning through the connection between the human eye and fingers is somewhat different from human habits, and it is not very intuitive to use; and, Through multiple steps to determine the position of human e

Method used

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  • Screen locating control method and device
  • Screen locating control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 , figure 2 As shown, this embodiment is the screen positioning under the condition of no cursor, such as figure 1 As shown, it includes the following steps:

[0047] ① Acquisition of reference images: Acquire in real time or collect at least one screen reference image in advance, and use this screen reference image as a standard image in image recognition. In this embodiment, the screen reference image is a screenshot of a screen area, including the entire screen or a certain area on the screen.

[0048] ②Screen image collection: The image collection unit in the positioning device collects the screen images to obtain a series of screen collection images. The above-mentioned image acquisition unit includes a lens group, an image sensor and an image preprocessing module. Wherein, the image sensor is CCD, CMOS or other sensor devices. In practice, you can use the relatively mature automatic zoom and anti-shake technology in the field of digital camer...

Embodiment 2

[0065] Such as figure 1 , image 3 As shown, this embodiment is screen positioning with a cursor, wherein the cursor is an icon used to display the coordinates of the screen focus, which may be an arrow in a general operating system, or any static or dynamic graphic. The present invention actually simulates the process of human eyes recognizing and tracking objects. When the human eye works, it first recognizes the object from the image, and then the brain controls the rotation of the neck muscles so that the object is always in a certain area in the human eye's field of view. The present invention utilizes the same principle, and the difference is that when the cursor in the image is detected not in the center, instead of controlling the body to find the cursor, the cursor is controlled to move on the screen so that it is in the center range of the image obtained by the device of the present invention, thus The positioning of the screen is realized. Such as image 3 As sh...

Embodiment 3

[0099] This embodiment combines the previous two embodiments. When the user uses this device to point to the screen, the driver program first detects whether there is a cursor on the interface. , the following method can be adopted: when the device cannot detect the cursor within a period of time (such as 1 second), automatically or manually switch to the method in Embodiment 1 for screen positioning, and after obtaining the focus coordinates, move the cursor to the new Focus coordinates, and then use the method in Embodiment 2 to perform screen positioning. In this way, the cursor will automatically move to the position pointed by the device, which saves the trouble of initial screen positioning and makes the use more convenient and smooth.

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Abstract

The invention discloses a screen location control method comprising the following steps of: (1) obtaining a reference image: obtaining or pre-collecting at least one screen reference image in real time, and taking the screen reference image as a standard image in image identification; (2) acquiring a screen image: pointing a location control device disclosed in the invention to a screen, digitalizing the screen image by an image acquisition unit in the location control device, and obtaining a series of screen acquisition images; (3) identifying an image: A, extracting a reference characteristic set, i.e., extracting the reference characteristic set from the screen reference image, and taking the reference characteristic set as a standard set in an image identification process; B, extracting and acquiring an image characteristic set, i.e., extracting the characteristics of the screen acquisition image by using a method which is same as the method for extracting the reference characteristic set to obtain an acquisition image characteristic set; and C, matching the acquisition image characteristic set with the reference characteristic set by using a matching algorithm; (4) calculating a position: according to the matching result and a current coordinate of the location control device, calculating a screen coordinate instructed by the location control device next time; and (5) identifying a focus: sending a new focus coordinate in a focus control module, and identifying the position of the focus according to the current state of the screen by the focus control module.

Description

technical field [0001] The invention relates to a screen positioning method and device, belonging to the field of human-computer interaction, specifically, a method and a device for directly positioning a screen by using computer vision and pattern recognition principles. Background technique [0002] As an input device, a screen pointing device is a device used to specify a position on the screen. For example, a mouse is a screen pointing device that uses the movement of the hand on another plane to control the position of the mouse cursor on the screen. As an important part of the human-computer interaction system, input devices have a huge impact on the human-computer interface and user experience. The popularity of the mouse has greatly improved the user experience, eventually leading to the popularity of graphical interface systems and replacing character interface systems in PCs and mobile devices. [0003] Currently, the mouse and trackpad are still the most importa...

Claims

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Application Information

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IPC IPC(8): G06F3/042G06F3/033
Inventor 伍斌
Owner 伍斌
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