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Non-contact gesture recognition method

A gesture recognition and non-contact technology, applied in the field of perceptual interaction, can solve the problems of fine-grained exploration, inability to answer gestures, lack of theoretical guidance, etc., and achieve the effect of reliable gesture recognition

Pending Publication Date: 2021-10-22
PEKING UNIV
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Problems solved by technology

However, the existing work is based on empirical observation methods to perceive coarse-grained human behaviors, and has not explored fine-grained gesture recognition, so that the existing methods for coarse-grained behaviors cannot be applied to fine-grained non-contact gestures. identifying
More importantly, due to the lack of theoretical guidance, it is impossible to answer the key questions of what kind of gestures can be perceived and under what conditions can be better perceived

Method used

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Embodiment Construction

[0036]Hereinafter, reference is made to embodiments of the present disclosure. It should be understood, however, that the present disclosure is not limited to specific described embodiments. Rather, any combination of the following features and elements is contemplated, whether related to different embodiments or not, to implement and practice the present disclosure. Furthermore, although embodiments of the disclosure may achieve advantages over other possible solutions and / or over the prior art, whether a particular advantage is achieved by a given embodiment does not limit the disclosure. Accordingly, the following aspects, features, embodiments and advantages are exemplary only and are not to be considered elements or limitations of the appended claims unless explicitly recited in the claims. Likewise, references to "the present disclosure" should not be construed as a generalization of the inventive subject matter disclosed herein, and should not be considered an element ...

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Abstract

The invention discloses a non-contact gesture recognition method, which is characterized in that under the condition that a human target does not carry any equipment, channel state information (CSI) is extracted from a wireless radio frequency signal sent by a signal base station by using terminal signal receiving equipment, and different gestures of the target are recognized. Since Fresnel areas exist and are non-uniformly distributed around a receiving terminal, the gesture recognition effect is related to the position of a target and the relative position of receiving and transmitting equipment. Under the condition that the position of the communication base station transmitting the signal is uncertain, the method can estimate the approximate direction of the communication base station and find the optimal position of gesture interaction, so that the motion features are extracted to carry out reliable non-contact gesture recognition.

Description

technical field [0001] The invention relates to perceptual interaction technology, in particular to a non-contact gesture recognition method. Background technique [0002] The non-contact gesture recognition refers to that the interactive device recognizes the user's specific gesture without any contact with the user. Compared with contact methods, non-contact gesture recognition has the advantages of non-intrusive and convenient. It allows users to interact with smart devices in a contactless manner, and is one of the most natural ways of human-computer interaction. [0003] There are mainly three kinds of existing non-contact dynamic gesture recognition methods, which use vision, sound waves and radio frequency signals respectively. Vision-based methods use cameras or infrared sensors to reconstruct depth information from images to recognize gestures, however such systems are heavily affected by lighting conditions. Based on the sound wave method, the speaker emits soun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01G06K9/00
CPCG06F3/017
Inventor 张大庆陈蔚燕
Owner PEKING UNIV
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