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Air gesture control method based on visible light signal

A technology of gesture control and visible light, applied in the input/output process of data processing, input/output of user/computer interaction, instruments, etc., can solve problems such as noise sensitivity

Active Publication Date: 2022-01-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Camera and microphone based solutions raise privacy concerns, Wi-Fi based solutions are sensitive to noise and often require dedicated equipment
Some mobile devices are equipped with specialized hardware for air gesture recognition (eg Google Pixel 4, LG Q8 ThinQ), however they require additional changes for mobile devices

Method used

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  • Air gesture control method based on visible light signal
  • Air gesture control method based on visible light signal
  • Air gesture control method based on visible light signal

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Embodiment Construction

[0020] This embodiment relates to an air gesture control method based on visible light signals, which emits light signals through a display device and collects the reflected signals with gestures, which are analyzed to realize gesture recognition and are used to generate corresponding control instructions.

[0021] The emitted light signal is generated by switching between two adjacent complementary frames through the display device, and generates spatial resolution information beyond the perception range of human eyes in a row-by-row refresh manner, specifically as figure 1 Shown: When two n-line complementary frames are continuously switched, the display device produces high frequency optical signal, where: f s Indicates the refresh rate of the display device, then the optical signal sent by the display device has two frequency components: and The complementary frame color block is on the left side of the light sensor; in order to hide the complementary frame into the c...

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Abstract

The invention relates to an air gesture control method based on a visible light signal; the method comprises the steps that a display device emits a light signal and collects a reflection signal with a gesture, gesture recognition is achieved after analysis, the reflection signal is used for generating a corresponding control instruction, and the emitted light signal is a visible light wave band. According to the invention, the air gesture recognition and control of the mobile equipment can be realized without adding hardware. According to the invention, a visible light-based gesture recognition system on commercial equipment is realized. Compared with an existing gesture recognition method on the commercial mobile equipment, the method has the advantages that special hardware modification is avoided, that is, any component such as a depth camera does not need to be additionally arranged on the mobile equipment, and the privacy of a user is well protected. In addition, the method is compared with a depth camera, and the energy consumption advantage of the device is verified.

Description

technical field [0001] The present invention relates to a technology in the field of mobile device sensing, in particular to a method for controlling air gestures based on visible light signals. Background technique [0002] Air gesture control is a more natural way for users to interact with electronic devices. It extends the traditional touch-based interaction methods. Existing works use mobile devices' built-in cameras, microphones, and Wi-Fi receivers to achieve air gesture control. However, these methods have some problems. Camera and microphone-based solutions raise privacy concerns, and Wi-Fi-based solutions are sensitive to noise and often require specialized equipment. Some mobile devices are equipped with specialized hardware for air gesture recognition (e.g. Google Pixel 4, LG Q8 ThinQ), however they require additional changes to the mobile device. Contents of the invention [0003] The present invention aims at the deficiency that additional hardware equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01G06F3/0488G06K9/62
CPCG06F3/017G06F3/04883G06F18/24147G06V40/28G06V10/17G06V10/19G06F3/0325
Inventor 吴帆廖子墨陈贵海
Owner SHANGHAI JIAO TONG UNIV
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