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Method for positioning finger tips of directed gestures

A positioning method and fingertip technology, applied in the input/output of user/computer interaction, computer components, graphics reading, etc., can solve the problem of single pointing gesture objects, achieve simple operation, improve robustness, and be easy to implement Effect

Inactive Publication Date: 2010-06-02
SHANGHAI UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an improved fingertip location method for pointing gestures in view of the problems that existing fingertip extraction methods for pointing gestures require the help of contact external devices (such as gloves) or require a simple background and a single pointing gesture object. method

Method used

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  • Method for positioning finger tips of directed gestures
  • Method for positioning finger tips of directed gestures
  • Method for positioning finger tips of directed gestures

Examples

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Embodiment Construction

[0052] A specific embodiment of the present invention is: operating program such as figure 1 shown. The original background image for this example is figure 2 As shown, the current pointing gesture image is as image 3 , according to the hand characteristics of the pointing gesture in the pointing gesture behavior, for image 3 Shown in color image, fingertip localization for pointing gestures. Specific steps are as follows:

[0053] 1) Start the pointing gesture image acquisition system: collect video images;

[0054] 2) Get the background image

[0055] Continuously collect scene images that do not contain gesture targets. When the difference between the two images within a set time interval is less than a set threshold, use an image within the time interval as the background image, otherwise re-acquire until the The difference between the two images within the set time interval is less than a certain set threshold;

[0056] 3) Segmentation indicating gesture objects...

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Abstract

The invention relates to a method for positioning finger tips of directed gestures. In the method, the positions of the finger tips of the directed gestures are automatically determined according to the characteristics of hands of the directed gestures in directed gesture actions. A background difference method is adopted to extract objects of the directed gestures, a complexion partition method is used to extract a zone of the hand of the directed gestures, and a finger tip point is automatically determined according to a position of the finger tip of the directed gestures which is positioned at the outline of the edge of the hand of the directed gestures and farthest from the zone of the finger tip of the directed gestures. Therefore, the invention fast and effectively positions the position of the finger tip point of the directed gestures, and meets the requirements for extracting features in human-computer interaction of the directed gestures.

Description

technical field [0001] The invention relates to a fingertip positioning method for pointing gestures, which is used for video digital image analysis and understanding. It belongs to the technical field of intelligent information processing. Background technique [0002] With the rapid development of computer technology, the research on novel human-computer interaction technology that conforms to the natural communication habits of human beings is extremely active, and the human-computer interaction technology has gradually shifted from computer-centered to human-centered, and the multimedia user interface has greatly enriched computer technology. Information is presented in a form that allows the user to utilize multiple sensory channels alternately or simultaneously. However, the human-computer interaction form of the multimedia user interface still forces users to use conventional input devices (such as keyboards, mice, and touch screens) for input, which has become the b...

Claims

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Application Information

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IPC IPC(8): G06F3/01
Inventor 管业鹏于蕴杰
Owner SHANGHAI UNIV
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