Virtual hand automatic gesture selection method

A virtual hand and gesture technology, applied in the field of intelligent human-computer interaction, can solve problems such as high cognitive load

Inactive Publication Date: 2013-02-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of high cognitive load brought by the existing virtual hand technology, thereby proposing a virtual hand automatic gesture selection method

Method used

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  • Virtual hand automatic gesture selection method

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0060] A virtual hand automatic gesture selection method, comprising:

[0061] (1) Design a set of basic gestures commonly used in production and life for the virtual hand to form a set of basic gestures for the virtual environment, represented by the symbol GesSet. The so-called gesture refers to the combination of fingers and the shape of the hand involved in the grasping action.

[0062] GesSet={Pnt, 2fNip, 3fNip, 4fNip, 5fNip, AGrab, PGrab, Grasp}. Among them, Pnt is a pointing gesture, the pointing gesture is the back of the hand facing upwards, the index finger is placed straight, the thumb is opened on the same plane as the palm and is orthogonal to the index finger, and the fingertips of the other three fingers are naturally bent downward; 3fNip represents the pinch gesture of the thumb, index finger and middle finger; 4fNip repres...

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Abstract

The invention relates to a virtual hand automatic gesture selection method and belongs to the field of computer application. The virtual hand automatic gesture selection method comprises designing a set of frequently-used basic gestures for a virtual hand and designing gesture selection method of the virtual hand. Specifically, (1) end faces of parts are utilized as segmentation plane to form binary space portioning tree (BSP Tree) of the parts, and the parts and the peripheral space of the parts are divided into a plurality of sub-feature spaces; (2) in allusion to each sub-feature space obtained from the step (1), a space division Fea Space Class of a feature contained by the sub-feature space is formed; (3) present to-be-grasped part feature of the virtual hand is preliminary determined; (4) a group of indexs used for judging the grasping positions of the virtual hand are designed, and the grasping positions of the virtual hand are comprehensively judged according to the specific value of the index; (5) a gesture is chosen according to selection principals. The virtual hand automatic gesture selection method has the advantages of reducing the burden of manual operation and computation complexity and greatly improving work efficiency. Man-machine interaction in real time can be achieved.

Description

technical field [0001] The invention relates to a virtual hand automatic gesture selection method, which belongs to the field of intelligent human-computer interaction. Background technique [0002] The great progress of computing technology has made it possible for people to carry out various interactive simulation experiments and design work in a virtual environment with the help of graphics technology and a variety of interactive devices. Direct manipulation in human-computer interaction in virtual environments as in the real world is an important technical aspect. The animation of virtual hand gestures is the infrastructure for direct manipulation. At present, the behavior of virtual hand gestures is obtained by tracking the real finger movements of people based on devices such as data gloves. The defects of such virtual hands lie in the following points. First, it relies on human physiological behavior and physiological perception, causing a large cognitive load in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01
Inventor 程成
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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