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Gesture recognition method based on coordinate conversion

A gesture recognition and coordinate transformation technology, applied in the field of gesture recognition, can solve the problems of complex devices, many modules, and high cost, and achieve the effects of fewer modules, safe and reliable algorithms, and high practicability.

Active Publication Date: 2014-12-03
HUIZHOU DESAY SV AUTOMOTIVE
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AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a gesture recognition method based on coordinate transformation, which solves the problems of many modules, complex devices and high cost in traditional gesture recognition algorithms.

Method used

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  • Gesture recognition method based on coordinate conversion
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  • Gesture recognition method based on coordinate conversion

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Embodiment Construction

[0030] The following is a clear and complete description of the technical solution of the present invention through specific embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] The present invention provides a gesture recognition method based on coordinate transformation, which is mainly carried out in the following aspects:

[0032] 1. Establishment of two-dimensional coordinate system

[0033] Create a two-dimensional coordinate system such as figure 1 As shown, among them, the X-axis represents the horizontal direction, which is simulated as a gesture of sliding left and right, and the Z-axis represents the vertical direction, which...

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Abstract

The invention provides a gesture recognition method based on coordinate conversion. The method comprises the following steps: simulating motions of a gesture to a two-dimensional coordinate system, simulating the leftward / rightward sliding of the gesture on an X axis, and simulating the approach and the distance of the gesture on a Z axis; when the gesture triggers infrared interruption, starting to sample infrared data regularly through the system; mapping gesture motion points into a pair of coordinate values on the X axis and the Z axis according to acquired effective data values; naturalizing a plurality of groups of coordinate values into a proximate straight line formed by a relation between a coordinate value on the X axis and a sampling frequency and a proximate straight line formed by a relation between a coordinate value on the Z axis and a sampling frequency by using a least square method respectively; judging the leftward sliding or the rightward sliding of the gesture according to the slope of the straight lines, and judging the approach and the distance of the gesture according to the slope of the straight lines. According to the method, safe driving is guaranteed, a car audio / video entertainment system can be conveniently and simply operated, and potential car driving safety hazards caused by complicated operation are effectively eliminated.

Description

technical field [0001] The invention relates to the technical field of gesture recognition, in particular to a gesture recognition method based on coordinate transformation. Background technique [0002] With the rapid increase of car ownership, people pay more and more attention to car safety. When the vehicle is driving, when operating the on-board GPS, DVD and other entertainment systems, the owner must pull out the buttons or touch the HMI interface to click the icon. At the same time, he must look down at the operation interface, and then select the required function. There will inevitably be potential safety hazards in the meeting, and even irreparable personal and property losses will be caused in severe cases. [0003] As far as the technology itself is concerned, the existing gesture recognition uses a spatial algorithm to calculate the spatial trajectory of the gesture. The algorithm is complex, there are many modules, and the cost is high; at the same time, for t...

Claims

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Application Information

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IPC IPC(8): G06F3/01
Inventor 朱剑赵岩杨峰陈保利
Owner HUIZHOU DESAY SV AUTOMOTIVE
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