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Dynamic gesture control system and method

A dynamic gesture and control system technology, applied in image data processing, instrument, character and pattern recognition, etc., can solve problems affecting human-machine interaction, and achieve the effect of reducing purchase and maintenance costs, simplifying use, and tracking fast

Inactive Publication Date: 2011-05-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

Although the above video-based gesture tracking methods improve the tracking accuracy through auxiliary equipment, they also affect the natural and intuitive interaction between humans and machines.

Method used

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  • Dynamic gesture control system and method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] First, if figure 1 The system composition block diagram shown in the system layout, and then through the camera to collect user gesture motion information, through the computer to complete the recognition of static gestures, dynamic gesture tracking and dynamic gesture recognition.

[0037] (1) Static gesture detection stage

[0038] Proceed as follows to detect a fully open static gesture:

[0039] 1) For the binary image of the frame difference between the current frame and the previous frame, extract its outer contour.

[0040] 2) Calculate the convex hull of the external contour according to the Sklansky algorithm, and the apex of the convex hull is the fingertip point (remove the convex hull apex located at the wrist, such as figure 2 Type 3 points in the middle), such as figure 2 Class 1 points.

[0041] 3) Calculate the convex defects of the outer contour and their depths, that is, the distance from each defect point to the convex hull. Note that the maxim...

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Abstract

The invention discloses dynamic gesture control system and method. The system comprises a computer and a camera, wherein the camera is directly connected with the computer. The method comprises the steps of: recognizing a static gesture, tracking a dynamic gesture, and recognizing the dynamic gesture. The invention has the advantages of non contact: a user can realize the tracking and the recognizing of the dynamic gesture of the user through only the camera without any assisting equipment; no calibration: the use of the system is simplified, the gesture control is started rapidly and tracked rapidly and recognized accurately; and low cost: at present, various data gloves are high in purchasing and maintaining price, the common camera has low cost and does not need the maintenance, thus the purchasing and the maintaining costs of the gesture control system are greatly lowered.

Description

technical field [0001] The dynamic gesture control system and method described in the present invention belong to a video-based data processing system and method, and are suitable for human-computer interaction in virtual reality, large-scale interactive projection systems, and display systems, especially human-computer interaction in volumetric three-dimensional display systems. Interactive link. Background technique [0002] Interactive technology is a key technology of virtual reality system, and also a key technology of new display systems such as volumetric three-dimensional display. Interaction technology realizes the interaction between man and machine, the interaction between the real world and the virtual world. The premise of realizing interaction through dynamic gesture control is to obtain information such as the position of the user's hand in real time, and to recognize the meaning of the gesture trajectory. The former is gesture tracking and the latter is ges...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06K9/00G06T7/00
Inventor 潘文平邢建芳赵晓庚岳健王冬翠耿征张赵行龚华军沈春林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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