CN108732969A - A kind of SCM Based automobile gesture control device and its control method - Google Patents
A kind of SCM Based automobile gesture control device and its control method Download PDFInfo
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- CN108732969A CN108732969A CN201810488889.0A CN201810488889A CN108732969A CN 108732969 A CN108732969 A CN 108732969A CN 201810488889 A CN201810488889 A CN 201810488889A CN 108732969 A CN108732969 A CN 108732969A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/20—Movements or behaviour, e.g. gesture recognition
- G06V40/28—Recognition of hand or arm movements, e.g. recognition of deaf sign language
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The present invention proposes a kind of SCM Based automobile gesture control device and its control method, the present invention is using microcontroller as main control unit, infrared light is launched using infrared light compensating lamp, user gesture image is captured using the monocular cam with infrared filter, and send one-chip computer module to, one-chip computer module carries out analyzing processing and identification to user gesture image, and control device control module operates automobile equipment, to realize the gesture control to automobile equipment.One-chip computer module of the present invention has outstanding autgmentability, and different device driver modules can be connected according to actual demand, drives different automobile equipments, is achieved the purpose that using a variety of in-vehicle devices of gesture control.The present invention can be used under low light conditions using infrared light supplementing device collocation monocular cam, be more suitably applied to car simultaneously, still can normal use when especially driving at night is without daylight illumination.
Description
Technical field
The invention belongs to technical field of hand gesture recognition, more particularly to a kind of SCM Based automobile gesture control device
And its control method.
Background technology
The most common control mode of automobile accessory equipment is physical depression formula button or knob button.Push type button,
When not by outer force effect, key contacts are in discrete state, and button, which gets an electric shock, after pressing is closed, and is judged by key pressing with this,
And then the auxiliary device in automobile is controlled, such as：Adjust angle of rear-view mirror of vehicle, close door lock etc..Knob button, usually
There are one " common ends ", when knob rotates a fixed gear so that and the current contact being connected to " common end " disconnects, and
So that the contact of the gear is connected with " common end ", to distinguish different gears, to control the auxiliary device in automobile, example
Such as:Adjust interior air-conditioning etc..
In the case where current artificial intelligence is the situation of main trend, many automobile vendors are proposed the side using gesture control automobile
Formula, the automobile gesture control prior art can be divided into based on electromagnetic induction from principle, be based on binocular vision, based on 3-D view
Deng；
Control program based on electromagnetic induction depends on fixed electromagnetic induction device in the car, when human hand close to after pair set
Standby original electromagnetic field generates disturbance, and gesture control is realized by the monitoring changed to electromagnetic field.
Control program based on binocular vision is to utilize two width or several X-Y schemes captured by two camera sensing devices
Picture comes out the three dimension reconstruction of scene according to geometrical relationship wherein included.By analyzing the three-dimensional information constructed, come
Judge user gesture posture, and then realizes gesture control.
Usual way based on 3-D view includes structure light, light winged time and multi-angle imaging etc., passes through and calculates target
Range information between video capture device realizes the identification of gesture in conjunction with two dimensional image relevant treatment analysis method.
Traditional push type button and knob button scheme, the button for needing human contact to specify, and apply certain
Dynamics, mode of operation is old, and cumbersome laborious；Gesture control scheme is more novel than conventional physical button control mode, operation
It is convenient, and save space, it is no longer necessary to physical button is not necessarily to human hand touch control equipment；But current electromagnetic induction scheme, behaviour
Make apart from close, and can only identify simple gesture, relatively difficult to complicated gesture identification, sensitivity is low；And binocular vision
Feel and the calculation amount of 3-D view processing scheme is larger, it is higher to Platform Requirements, it is of high cost, and be not easy to integrated and safeguard.
Invention content
The present invention in order to solve existing technical problem, propose a kind of SCM Based automobile gesture control device and its
Control method.
The purpose of the present invention is achieved through the following technical solutions：A kind of SCM Based automobile gesture control device, packet
Include image capture module, one-chip computer module and device control module；
Described image acquisition module includes infrared light supplementing device and the camera with filter plate, and the infrared light supplementing device is for forward
The infrared light of side's irradiation fixed band, to enhance the brightness of identification user gesture；The filter plate of the camera is for filtering
The light of other wavelength in addition to the light of infrared light supplementing device phase co-wavelength, the camera is for capture and infrared light supplementing device
The user gesture image that the light of phase co-wavelength is formed by filter plate；
The one-chip computer module is for calling image capture module capture user gesture image and preserving image capture module capture
User gesture image, and user gesture image is handled and is analyzed and to device control module send control command；
The device control module is used to receive the control command that the one-chip computer module is sent, to according to the control command
Vapour in-vehicle device, the vapour in-vehicle device is driven to execute corresponding command action.
Further, the one-chip computer module includes call unit, image storage unit, image processing unit, gesture knowledge
Other unit and equipment control command unit；
The call unit starts image capture device, calls image capture module, capture for initializing bottom hardware equipment
User gesture image；
Described image storage unit is used to preserve the user gesture image of image capture module capture, and the user gesture image is
RGB image；
Described image processing unit is used to the RGB image being converted to gray level image；And threshold value is carried out to the gray level image
Segmentation, obtains the bianry image for being partitioned into foreground and background；
The gesture identification unit is used to carry out contours extract to the bianry image after segmentation, extracts gesture wheel input by user
Exterior feature matches gesture profile input by user with the standard gesture contour mould pre-defined；
The equipment control command unit is used to determine gesture input by user according to the template of successful match, thus by the hand
The corresponding order of gesture is sent to the control that device control module carries out vapour in-vehicle device.
The present invention also proposes a kind of SCM Based automobile gestural control method,
Image capture module irradiates the infrared light of fixed band using infrared light supplementing device forwards, to enhance identification user gesture
Brightness；The light filtered out with other wavelength other than the light of infrared light supplementing device phase co-wavelength is crossed by the filter plate in camera
Line captures the user gesture image formed by filter plate with the light of infrared light supplementing device phase co-wavelength using camera；
One-chip computer module calls image capture module capture user gesture image and preserves the user gesture image of capture, and to
Family images of gestures is handled and is analyzed and sends control command to device control module；
The device control module receives the control command, described to drive vapour in-vehicle device according to the control command
Vapour in-vehicle device executes corresponding command action.
Further, the one-chip computer module calls image capture module capture user gesture image and preserves the use of capture
Family images of gestures, and user gesture image is handled and analyzed and sends control command to device control module, specifically
For：
Step a:Bottom hardware equipment is initialized, image capture device is started；
Step b:Image capture module is called, user gesture image is captured, the user gesture image is RGB image；
Step c:Preserve the RGB image of image capture module capture；
Step d:The RGB image is converted into gray level image；
Step e:To gray level image into row threshold division, the bianry image for being partitioned into foreground and background is obtained；
Step f:Contours extract is carried out to the bianry image after segmentation, extracts gesture profile input by user；
Step g:Gesture profile input by user is matched with the standard gesture contour mould pre-defined；
Step h:Step b-step g is repeated until successful match；
Step i:Judge gesture input by user according to the template of successful match, the corresponding order of the gesture is sent to equipment
Control module carries out vapour in-vehicle device control.
Beneficial effects of the present invention are：
Compared to conventional keys mode, the present invention allows user without contacting pressing keys, and gesture, energy are only shown in space
Realize the control to automobile equipment, control mode is novel, efficient and convenient, and eliminates the interior space of physical button occupancy.
Relative to electromagnetic induction scheme, operating distance of the present invention is farther, supports complicated gesture and can be adapted to by User Defined
Property is stronger, and the gesture of support is more.It is handled relative to binocular vision and 3-D view, calculation amount of the invention is small, to platform
It is required that low, at low cost and accuracy rate is higher, is easily installed.
One-chip computer module has outstanding autgmentability simultaneously, and different device driver modules can be connected according to actual demand,
Different automobile equipments is driven, is achieved the purpose that using a variety of in-vehicle devices of gesture control.On the other hand, since the present invention uses
Infrared light supplementing device is arranged in pairs or groups monocular cam, can be used under low light conditions, is more suitably applied to car, especially driving at night without
It, still can normal use when daylight illumination.
Description of the drawings
Fig. 1 is a kind of SCM Based automobile gesture control device structure chart；
Fig. 2 is the image schematic diagram handled by one-chip computer module；
Fig. 3 is one-chip computer module specific workflow figure；
Fig. 4 is rearview mirror control set for adjusting structure chart；
Fig. 5 is one-chip computer module schematic diagram；
Fig. 6 is image capture module and infrared light supplementing device schematic diagram；
Fig. 7 is L298N motor drive module schematic diagrames；
Fig. 8 is that device control module is connected schematic diagram with angle of rear-view mirror of vehicle regulation motor.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
In conjunction with Fig. 1-Fig. 3, the present invention proposes a kind of SCM Based automobile gesture control device, including Image Acquisition mould
Block, one-chip computer module and device control module；
Described image acquisition module includes infrared light supplementing device and the camera with filter plate, and the infrared light supplementing device is for forward
The infrared light of side's irradiation fixed band, to enhance the brightness of identification user gesture；The filter plate of the camera is for filtering
The light of other wavelength in addition to the light of infrared light supplementing device phase co-wavelength, the camera is for capture and infrared light supplementing device
The user gesture image that the light of phase co-wavelength is formed by filter plate；Identification user gesture is done to reduce other objects with this
It disturbs.
The one-chip computer module is for calling image capture module capture user gesture image and preserving image capture module
The user gesture image of capture, and user gesture image is handled and analyzed and sends control life to device control module
It enables；
The device control module is used to receive the control command that the one-chip computer module is sent, to according to the control command
Vapour in-vehicle device, the vapour in-vehicle device is driven to execute corresponding command action.The device control module is according to being connected
The difference of equipment can provide different drive signals, and then realize control of the gesture to multigroup equipment.
The one-chip computer module includes call unit, image storage unit, image processing unit, gesture identification unit and sets
Standby control command unit；
The call unit starts image capture device, calls image capture module, capture for initializing bottom hardware equipment
User gesture image；
Described image storage unit is used to preserve the user gesture image of image capture module capture, and the user gesture image is
RGB image；
Described image processing unit is used to the RGB image being converted to gray level image；And threshold value is carried out to the gray level image
Segmentation, obtains the bianry image for being partitioned into foreground and background；
The gesture identification unit is used to carry out contours extract to the bianry image after segmentation, extracts gesture wheel input by user
Exterior feature matches gesture profile input by user with the standard gesture contour mould pre-defined；
The equipment control command unit is used to determine gesture input by user according to the template of successful match, thus by the hand
The corresponding order of gesture is sent to the control that device control module carries out vapour in-vehicle device.
The present invention also proposes a kind of SCM Based automobile gestural control method,
Image capture module irradiates the infrared light of fixed band using infrared light supplementing device forwards, to enhance identification user gesture
Brightness；The light filtered out with other wavelength other than the light of infrared light supplementing device phase co-wavelength is crossed by the filter plate in camera
Line captures the user gesture image formed by filter plate with the light of infrared light supplementing device phase co-wavelength using camera；Image is adopted
Collection module includes camera and infrared light supplementing device, which can receive the control signal sent out by one-chip computer module,
Capture user gesture image and the digital information for sending one-chip computer module image to.The lens focus of camera can be according to actually answering
It is adjusted with demand, has installed infrared fileter inside camera lens additional, optical filter is used for filtering out the infrared light sent out except light aid
The light of other wavelength in addition ensures that the light for there was only infrared light supplementing device phase co-wavelength can be captured by camera.It is contained red
Outer light aid can automatically be enabled when visible spectrum illumination is relatively low, to compensate object illumination loss.
One-chip computer module calls image capture module capture user gesture image and preserves the user gesture image of capture, and
User gesture image is handled and analyzed and sends control command to device control module；
The device control module receives the control command, described to drive vapour in-vehicle device according to the control command
Vapour in-vehicle device executes corresponding command action.Device control module is responsible for receiving the instruction that one-chip computer module is sent, according to even
The different automobile equipments connect export matching signal (such as Transistor-Transistor Logic level, PWM etc.), play driving and control these
The effect of automobile accessory equipment, such as：The motor of window lifting is controlled, the unlatching of interior air-conditioning is controlled or is set with the middle control of automobile
It is standby to communicate etc..
The one-chip computer module calls image capture module capture user gesture image and preserves the user gesture figure of capture
Picture, and user gesture image is handled and analyzed and sends control command to device control module, specially：
Step a:Bottom hardware equipment is initialized, image capture device is started；
Step b:Image capture module is called, user gesture image is captured, the user gesture image is RGB image；
Step c:Preserve the RGB image of image capture module capture；
Step d:The RGB image is converted into gray level image；
Step e:To gray level image into row threshold division, the bianry image for being partitioned into foreground and background is obtained；
Step f:Contours extract is carried out to the bianry image after segmentation, extracts gesture profile input by user；
Step g:Gesture profile input by user is matched with the standard gesture contour mould pre-defined；
Step h:Step b-step g is repeated until successful match；
Step i:Judge gesture input by user according to the template of successful match, the corresponding order of the gesture is sent to equipment
Control module carries out vapour in-vehicle device control.
The effect of step b-step f is as shown in Fig. 2, the picture in left side is Image Acquisition (in addition to black lines part)
Collected former RGB image (the corresponding step b) of module；Image to right is two that one-chip computer module is obtained by Threshold Segmentation Algorithm
It is worth image (corresponding step e)；The black lines sketched the contours of in Image to left are that one-chip computer module is calculated by contours extract algorithm
Obtained profile information (corresponding step f).The profile information is matched with template contours, to judge hand input by user
Gesture.
The present invention uses monolithic machine platform, at low cost, be easy to build and safeguard；Using the infrared light filling of monocular cam collocation
Lamp can use under low light conditions, be especially suitable for interior dark space；Replace traditional contact control mode, uses
Contactless gesture control, simple operation, mode are novel；Support complicated gesture and User Defined gesture.
In conjunction with Fig. 4-Fig. 8, specific embodiments of the present invention are illustrated for controlling to adjust angle of rear-view mirror of vehicle.This hair
The bright CPU using stm32f767 as one-chip computer module, stm32f767 are that a of ST companies release is based on ARM cortex-
32 bit processors of m7 kernels；Image capture module uses ov2640 image acquiring sensors, control device module to use
The output of L298N motor drive modules, motor drive module terminates in door mirror angle regulation motor.
The course of work is specially：
Step a:System and hardware initialization；
Step b:One-chip computer module calls image capture module acquisition user gesture image and sends one-chip computer module to；
Step c:One-chip computer module preserves the original RGB image that image capture module is sent；
Step d:One-chip computer module carries out image procossing and gesture template matches to RGB image；
Step e:One-chip computer module PC0, PC1 pin keeps low level output, device control module motionless to device control module
Make, door mirror angle regulation motor is inoperative；
Step f:The process of step b-step e is repeated until there is template matches success；
Step g:Judge that the template of successful match is that the five fingers open or the five fingers are drawn close；
Step h:Gesture is opened if it is the five fingers, then one-chip computer module PC0 pins send out high level letter to device control module
Number, PC1 pins send out low level signal, the door mirror angle regulation motor that device control module is connected to device control module
It rotates forward, door mirror angle tilts down；Otherwise it is that the five fingers draw close gesture, one-chip computer module PC0 pins are sent out to device control module
Go out low level signal, PC1 pins send out high level signal, the backsight pitch-angle that device control module is connected to device control module
Regulation motor reversion is spent, door mirror angle tilts upwards.
Above to a kind of SCM Based automobile gesture control device provided by the present invention and its control method, carry out
It is discussed in detail, principle and implementation of the present invention are described for specific case used herein, above example
Explanation be merely used to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (4)
1. a kind of SCM Based automobile gesture control device, which is characterized in that including image capture module, one-chip computer module
And device control module；
Described image acquisition module includes infrared light supplementing device and the camera with filter plate, and the infrared light supplementing device is for forward
The infrared light of side's irradiation fixed band, to enhance the brightness of identification user gesture；The filter plate of the camera is for filtering
The light of other wavelength in addition to the light of infrared light supplementing device phase co-wavelength, the camera is for capture and infrared light supplementing device
The user gesture image that the light of phase co-wavelength is formed by filter plate；
The one-chip computer module is for calling image capture module capture user gesture image and preserving image capture module capture
User gesture image, and user gesture image is handled and is analyzed and to device control module send control command；
The device control module is used to receive the control command that the one-chip computer module is sent, to according to the control command
Vapour in-vehicle device, the vapour in-vehicle device is driven to execute corresponding command action.
2. the apparatus according to claim 1, it is characterised in that：The one-chip computer module includes call unit, image storage
Unit, image processing unit, gesture identification unit and equipment control command unit；
The call unit starts image capture device, calls image capture module, capture for initializing bottom hardware equipment
User gesture image；
Described image storage unit is used to preserve the user gesture image of image capture module capture, and the user gesture image is
RGB image；
Described image processing unit is used to the RGB image being converted to gray level image；And threshold value is carried out to the gray level image
Segmentation, obtains the bianry image for being partitioned into foreground and background；
The gesture identification unit is used to carry out contours extract to the bianry image after segmentation, extracts gesture wheel input by user
Exterior feature matches gesture profile input by user with the standard gesture contour mould pre-defined；
The equipment control command unit is used to determine gesture input by user according to the template of successful match, thus by the hand
The corresponding order of gesture is sent to the control that device control module carries out vapour in-vehicle device.
3. a kind of SCM Based automobile gestural control method, it is characterised in that：
Image capture module irradiates the infrared light of fixed band using infrared light supplementing device forwards, to enhance identification user gesture
Brightness；The light filtered out with other wavelength other than the light of infrared light supplementing device phase co-wavelength is crossed by the filter plate in camera
Line captures the user gesture image formed by filter plate with the light of infrared light supplementing device phase co-wavelength using camera；
One-chip computer module calls image capture module capture user gesture image and preserves the user gesture image of capture, and to
Family images of gestures is handled and is analyzed and sends control command to device control module；
The device control module receives the control command, described to drive vapour in-vehicle device according to the control command
Vapour in-vehicle device executes corresponding command action.
4. according to the method described in claim 3, it is characterized in that：The one-chip computer module calls image capture module capture to use
Family images of gestures and the user gesture image for preserving capture, and user gesture image is handled and analyzed and to equipment control
Molding block sends control command, specially：
Step a:Bottom hardware equipment is initialized, image capture device is started；
Step b:Image capture module is called, user gesture image is captured, the user gesture image is RGB image；
Step c:Preserve the RGB image of image capture module capture；
Step d:The RGB image is converted into gray level image；
Step e:To gray level image into row threshold division, the bianry image for being partitioned into foreground and background is obtained；
Step f:Contours extract is carried out to the bianry image after segmentation, extracts gesture profile input by user；
Step g:Gesture profile input by user is matched with the standard gesture contour mould pre-defined；
Step h:Step b-step g is repeated until successful match；
Step i:Judge gesture input by user according to the template of successful match, the corresponding order of the gesture is sent to equipment
Control module carries out vapour in-vehicle device control.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109839827A (en) * | 2018-12-26 | 2019-06-04 | 哈尔滨拓博科技有限公司 | A kind of gesture identification intelligent home control system based on total space location information |
| CN112069960A (en) * | 2020-08-28 | 2020-12-11 | 哈尔滨拓博科技有限公司 | Monocular gesture control afterloading system, control method and transformation method for rocker type doll machine |
| CN112572295A (en) * | 2020-12-01 | 2021-03-30 | 睿联汽车电子(芜湖)有限公司 | System and method for automatically controlling automobile rearview mirror based on DMS camera |
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| CN103440035A (en) * | 2013-08-20 | 2013-12-11 | 华南理工大学 | Gesture recognition system in three-dimensional space and recognition method thereof |
| CN105334951A (en) * | 2014-06-27 | 2016-02-17 | 联想(北京)有限公司 | Three-dimensional image control method and apparatus and electronic device |
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| CN103440035A (en) * | 2013-08-20 | 2013-12-11 | 华南理工大学 | Gesture recognition system in three-dimensional space and recognition method thereof |
| CN105334951A (en) * | 2014-06-27 | 2016-02-17 | 联想(北京)有限公司 | Three-dimensional image control method and apparatus and electronic device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839827A (en) * | 2018-12-26 | 2019-06-04 | 哈尔滨拓博科技有限公司 | A kind of gesture identification intelligent home control system based on total space location information |
| CN112069960A (en) * | 2020-08-28 | 2020-12-11 | 哈尔滨拓博科技有限公司 | Monocular gesture control afterloading system, control method and transformation method for rocker type doll machine |
| CN112572295A (en) * | 2020-12-01 | 2021-03-30 | 睿联汽车电子(芜湖)有限公司 | System and method for automatically controlling automobile rearview mirror based on DMS camera |
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