Infrared gesture recognition method and apparatus based on region sequence reconstruction

Abstract

The invention discloses an infrared gesture recognition method and apparatus based on region sequence reconstruction. The method comprises the steps of establishing a coordinate system, normalizing distances between at least four arranged infrared distance measuring sensors and the X axis and the Y axis, and determining coordinates of each sensor; measuring the distance between a hand of a user and each infrared distance measuring sensor when the hand of the user is detected to enter in effective ranges of the infrared distance measuring sensors; calculating coordinates of the hand of the user; and determining the quadrant where the hand of the user is located according to the coordinates of the hand of the user, and recognizing the gesture type of the user according to variation of the quadrant. According to the infrared gesture recognition method and apparatus based on region sequence reconstruction, three-dimensional motion coordinates of the gesture can be reproduced according to arrangement relationship of the infrared sensor array and infrared distance measuring values, the regions through which the gesture passes are determined to recognize the gesture motion, the regions are determined without being influenced by abnormity of individual points, anti-interference capability is high, and recognition rate is high.

Description

technical field [0001] The invention belongs to the technical field of intelligent control, in particular to an infrared gesture recognition method and device based on area sequence reconstruction. Background technique [0002] In the field of intelligent control, we have been pursuing simpler and more convenient control methods. Control based on gesture recognition is one of the control methods that are convenient for users to operate. Only need to wave specific gestures to complete the control. Gesture recognition devices mainly include solutions based on vision sensors, depth sensors, and infrared sensors. Among them, infrared sensors have broad application prospects because of their simple control and low cost. [0003] At present, the commonly used gesture recognition scheme of infrared sensor is to construct a low-cost infrared gesture recognition device through two to four infrared emitting tubes, photodiodes and gesture sensing chips. First, the infrared emitting tu...

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Problems solved by technology

[0004] However, infrared sensors recognize gestures based on characteristics such as signal response speed, rising slope, and peak value. These features are highly variable and susceptible to interference, so the recognition rate is not high and the consistency is not very good. The one that should be close should respond first, and the result is the distance. The far one responds first, and the measured distance sensing strength is inconsistent, and the signal fluctuation is relatively large and not smooth, which will inevitably lead to misjudgment

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