CN109091105A - A kind of eye tracker and its detection system and detection method - Google Patents
A kind of eye tracker and its detection system and detection method Download PDFInfo
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- CN109091105A CN109091105A CN201811045371.6A CN201811045371A CN109091105A CN 109091105 A CN109091105 A CN 109091105A CN 201811045371 A CN201811045371 A CN 201811045371A CN 109091105 A CN109091105 A CN 109091105A
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- 230000001815 facial effect Effects 0.000 claims abstract description 34
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
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Abstract
The embodiment of the present invention proposes a kind of eye tracker and its detection system and detection method, eye tracker include: acquisition unit, has display screen, camera and support；Camera is rotatably arranged on display screen, for acquiring the face-image of at least one tester；Support is connect with display screen, for controlling display screen sliding and lifting；Control unit is electrically connected with camera and support；Control unit is used for the face-image acquired according to camera, judge whether the facial direction of tester meets acquisition and require, if not meeting acquisition to require, the face that camera and/or support are then controlled relative to tester is mobile, to be adapted to the facial direction of tester, so that the facial direction of tester is met acquisition and require.The acquisition unit of the embodiment of the present invention can be adjusted the acquisition posture of itself according to the facial direction of tester, to be adapted to the facial direction of tester, so that the face of tester is without being fixed.
Description
Technical field
The present invention relates to area of face recognition technology more particularly to a kind of eye trackers and its detection system and detection method.
Background technique
People often expresses the interest to things or region by frequently watching attentively.Therefore it can pass through tracking human eye
Viewpoint movement obtains the drop point of human eye sight, and according to the human eye movement's data collected and analyzed, parses reflection human body psychology
Movable information.In the background technology, in order to more accurately measure related data (such as blinkpunkt, fixation time and secondary of eye
Number etc.), it is usually that the face of tester is fixed, or using the method for wear-type.And an appearance is kept for a long time
Gesture is fixed, can make troubles to tester.On the other hand, existing test device can only carry out one human eye movement's number
According to acquisition can waste many time and manpower, and collecting efficiency is low in the case where requiring largely to acquire data.
Disclosed above- mentioned information are only used for reinforcing the understanding to background of the invention in the background technology, therefore it may be wrapped
Containing the information for not being formed as the prior art that those of ordinary skill in the art are known.
Summary of the invention
The embodiment of the present invention provides a kind of eye tracker and its detection system and detection method, to solve in the prior art one
A or multiple technical problems.
In a first aspect, the embodiment of the invention provides a kind of eye trackers, comprising:
Acquisition unit has display screen, camera and support；The camera is rotatably arranged in the display screen
On, for acquiring the face-image of at least one tester；The support is connect with the display screen, for controlling the display
Screen sliding and lifting；
Control unit is electrically connected with the camera and the support；Described control unit is used for according to the camera
The face-image of acquisition, judges whether the facial direction of the tester meets acquisition and require, and requires if not meeting acquisition,
The face that the camera and/or the support are then controlled relative to the tester is mobile, to be adapted to the face of the tester
Direction makes the facial direction of the tester meet acquisition and requires.
With reference to first aspect, for the embodiment of the present invention in the first implementation of first aspect, the support includes can
Support rod and pedestal up and down, one end of the support rod are connect with the display screen, the other end of the support rod with it is described
Pedestal connection, the support rod drive the display screen to be gone up and down according to the instruction of described control unit.
With reference to first aspect, the embodiment of the present invention is arranged on the support in second of implementation of first aspect
There is first distance sensor, the first distance sensor is electrically connected with the control unit, and the first distance sensor is used
In the distance between the face and the acquisition unit that measure the tester, and it is sent to described control unit.
Second of implementation with reference to first aspect, the third implementation of the embodiment of the present invention in first aspect
In, sliding equipment is provided on the support, the sliding equipment drives the display screen according to the instruction of described control unit
It is slided, to adjust the distance of the face of the relatively described tester of the acquisition unit.
With reference to first aspect, the embodiment of the present invention is in the 4th kind of implementation of first aspect, described control unit packet
Include image processing module and control module；Described image processing module is electrically connected with the camera, for the camera
The face-image of acquisition is analyzed, and judges whether the facial direction of the tester meets acquisition and require；The control
Module is according to the analysis of described image processing module as a result, controlling the camera and/or the relatively described tester of the support
Face it is mobile.
Second aspect, the embodiment of the invention provides a kind of eye tracker detection systems, including first aspect and first aspect
Any implementation in eye tracker, further includes:
Support unit has bracket, supporting element and second distance sensor, and the bracket is connect with the supporting element, uses
It rotates and goes up and down in controlling the supporting element；The supporting element is used to support the face of the tester；The second distance passes
Sensor is arranged on the bracket；The second distance sensor is electrically connected with the first distance sensor on the support, with
Measure the distance between the support unit and the acquisition unit, the distance of the described control unit according to measurement, control
The support is mobile relative to the support unit, so that the tester is in the preset acquisition range of the camera.
In conjunction with second aspect, for the embodiment of the present invention in the first implementation of second aspect, the bracket includes can
Telescopic rod and fixing seat up and down, one end of the telescopic rod and the fixing seat are rotatablely connected, the other end of the telescopic rod
It is fixedly connected with the supporting element.
In conjunction with the first implementation of second aspect, second implementation of the embodiment of the present invention in second aspect
In, the telescopic rod be it is multiple, each telescopic rod is arranged at intervals in the fixing seat, and is respectively provided on each telescopic rod
There is the supporting element.
The third aspect, the embodiment of the invention provides a kind of eye tracker detection methods, comprising:
According to the quantity of tester and position, the acquisition posture of acquisition unit is adjusted, so that all equal positions of the tester
In can acquire in the visual field；
According to the face-image of the tester of acquisition unit acquisition, judge that the facial direction of the tester is
It is no to meet acquisition requirement；
If not meeting acquisition to require, the face for controlling the relatively described tester of the acquisition unit is acted, and makes institute
The facial direction for stating tester meets acquisition and requires；The movement includes sliding, lifting and rotation；
The face-image that acquisition requires that meets of acquisition is analyzed, to obtain the eye in the face-image
Information data.
In conjunction with the third aspect, the embodiment of the present invention is in the first implementation of the third aspect, according to the number of tester
Amount and position, adjust the acquisition posture of acquisition unit, further includes:
Obtain the distance between the face of the acquisition unit Yu the tester；
Judge the distance whether in preset acquisition range；
If controlling the acquisition unit not in the preset acquisition range and being moved to the facial direction of the tester
It is dynamic, until the distance between the acquisition unit and the face of the tester is in the preset acquisition range.
A technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that the embodiment of the present invention acquisition
Unit can be adjusted the acquisition posture of itself according to the facial direction of tester, to be adapted to the facial direction of tester,
So that the face of tester is without being fixed.
Above-mentioned general introduction is merely to illustrate that the purpose of book, it is not intended to be limited in any way.Except foregoing description
Schematical aspect, except embodiment and feature, by reference to attached drawing and the following detailed description, the present invention is further
Aspect, embodiment and feature, which will be, to be readily apparent that.
Detailed description of the invention
In the accompanying drawings, unless specified otherwise herein, otherwise indicate the same or similar through the identical appended drawing reference of multiple attached drawings
Component or element.What these attached drawings were not necessarily to scale.It should be understood that these attached drawings depict only according to the present invention
Disclosed some embodiments, and should not serve to limit the scope of the present invention.
Fig. 1 is the overall structure figure for the eye tracker that embodiment of the present invention provides.
Fig. 2 is the overall structure figure for the eye tracker detection system that embodiment of the present invention provides.
Fig. 3 is the flow chart for the eye tracker detection method that embodiment of the present invention provides.
Fig. 4 is the flow chart of the acquisition pose adjustment for the acquisition unit that embodiment of the present invention provides.
Specific embodiment
Hereinafter, certain exemplary embodiments are simply just described.As one skilled in the art will recognize that
Like that, without departing from the spirit or scope of the present invention, described embodiment can be modified by various different modes.
Therefore, attached drawing and description are considered essentially illustrative rather than restrictive.
The embodiment of the invention provides a kind of eye trackers, as shown in Figure 1, comprising: acquisition unit 1 and control unit.
Acquisition unit 1 has display screen 11, camera 12 and support 13.Display screen 11 needs tester to watch for playing
Image or video.Camera 12 is rotatably arranged on display screen 11, for acquiring the face figure of at least one tester
Picture.Support 13 is connect with display screen 11, is slided and is gone up and down for controlling display screen 11.
Control unit is electrically connected with camera 12 and support 13.The face that control unit is used to be acquired according to camera 12 is schemed
Picture, judge the facial direction of tester whether meet acquisition require, if do not meet acquisition require, control camera 12 and/or
Support 13 is mobile relative to the face of tester, to be adapted to the facial direction of tester, the facial direction of tester is made to meet acquisition
It is required that.
In one embodiment, judge whether the facial direction of tester meets acquisition requirement and can divide at least two situations.
When the quantity of tester is a people, acquisition required standard is whether the face of tester is located at camera pickup area
Center, and the facial face camera of tester.When the quantity of tester is multiple people, acquisition required standard can be each
Whether the face of tester is respectively positioned in camera pickup area, and whether the face of each tester can be acquired by camera
It arrives.
In one embodiment, as shown in Figure 1, the top center position of display screen 11 is arranged in camera 12.Support 13
The bottom of display screen 11 is set, with supporting display screen 11.It should be noted that the orientation in the present embodiment can refer to Fig. 1.I.e.
The top of Fig. 1 is upper position, and the lower part of Fig. 1 is lower orientation.
In order to realize the lifting of display screen 11, support 13 may include liftably support rod 131 and pedestal 132.
In one embodiment, support 13 includes liftable support rod 131 and pedestal 132.One end of support rod 131 with
Display screen 11 connects, and the other end of support rod 131 is connect with pedestal 132, and support rod 131 drives aobvious according to the instruction of control unit
Display screen 11 is gone up and down, to adjust relative position of the face of tester in camera pickup area.Support rod 131 can be used
Any rod piece with elevating function in the prior art.For example, support rod 131 is gas bar, hydraulic stem, by fixing piece positioning
The arbitrary structures such as telescopic rod, screw rod.
It should be noted that the adjustable height of support rod 131 depends on the face-image for the tester that camera 12 acquires
Current location.
In one embodiment, first distance sensor 14, first distance sensor 14 and control are provided on support 13
Unit electrical connection, first distance sensor 14 is used to measure the distance between face and acquisition unit 1 of tester, and is sent to
Control unit.
In one embodiment, sliding equipment (not shown) is provided on pedestal 132, sliding equipment is single according to control
The instruction driving display screen 11 of member is slided, to adjust distance of the acquisition unit 1 with respect to the face of tester.Control unit
Instruction is generated according to the range data that first distance sensor 14 measures.
Driving display screen 11 slided it is to be understood that display screen 11 to close to tester direction linear slide, or
To the direction linear slide far from tester, can also slide in left and right directions.Wherein, sliding equipment driving display screen 11 is slided
Distance and direction depend on the current location of the face-image for the tester that camera 12 acquires.For example, if camera 12 acquires
The face-image of the tester arrived is excessive, then sliding equipment driving display screen 11 and camera 12 are moved to the direction far from tester
It is dynamic.If the face-image of the collected tester of camera 12 is too small or acquisition range beyond camera 12, sliding equipment
Driving display screen 11 and camera 12 are to close to the movement of the direction of tester.
In one preferred embodiment, when tester is a people, 12 distance test of camera of acquisition unit 1
The distance of person's face is 50-100cm.When tester is multiple people, the camera 12 of acquisition unit 1 is apart from each tester's face
Distance be 100-200cm.It is preferable in the face-image effect of the tester acquired apart from camera 12.
In a specific embodiment, pulley can be used in sliding equipment or rail structure realizes that control unit control is aobvious
The movement of display screen 11 and camera 12.The driving unit of pulley or rail structure is electrically connected with control unit, to realize basis
The instruction of control unit, pulley or rail structure are acted accordingly.
In one embodiment, camera 12 includes infrared transmitting device.Preferably, it is long that wide-angle can be used in camera 12
Burnt camera, such as Kinect camera.
In one embodiment, control unit includes image processing module and control module.Image processing module and camera shooting
First 12 electrical connection, the face-image for acquiring to camera 12 are analyzed, and judge whether the facial direction of tester meets
Acquisition requires.Control module is according to the analysis of image processing module as a result, control camera 12 and/or the opposite tester of support 13
Face it is mobile.
In an application example, control unit includes image pick-up card, image processing module and control module.Camera
12 are electrically connected with image pick-up card, and image pick-up card is electrically connected with image processing module.Control module and image processing module electricity
Connection, is also electrically connected with first distance sensor 14 and camera 12.Image pick-up card is used for the survey for acquiring camera 12
The face-image of examination person is sent to image processing module.Image processing module is analyzed and processed face-image.At work,
When not having tester in the picture shot in camera 12, control module finds test by controlling 12 transverse rotation of camera
Then the approximate location of person controls camera 12 and rotates and focus, so that face is at the pickup area center of camera 12.If taking the photograph
There is the face of multiple testers in the picture shot as first 12, then control module need to control the tester focused in rear camera 12
Face number do not reduce.
In a specific embodiment, image processing module includes primary processor and coprocessor.Primary processor control
The beginning of image processing process, the processes such as end and the display of processing result.Preferably, using CES-5250 as main process task
Device is used as coprocessor using DSP (Digital Signal Processing, Digital Signal Processing).
In one embodiment, as only one tester, camera 12 makes the face of tester by rotation first
In the acquisition range of camera 12, the then face-image of collecting test person.Current tester is analyzed according to face-image
Facial positions whether meet optimal acquisition requirement.If not satisfied, then adjusting the rotation of camera 12 and support by control unit
13 liftings, make the face of tester be located at the center position of 12 acquisition range of camera, improve the face figure of the tester of acquisition
As the availability of data.
When tester is more people, camera 12 by the movement of rotation and support 13, makes each tester can first
In the acquisition range of camera 12.Then it is focused by camera 12, judges whether the face of each tester is clear
As it can be seen that the focal length or mobile support saddle 13 for adjusting camera adjust camera 12 if image not enough clearly will affect acquisition quality
Position.When camera 12 acquires the face-image of each tester, each face-image for analyzing acquisition judges the face of tester
Whether portion direction meets the requirements.The face face camera 12 that optimal acquisition requires as each tester, is imaged by adjusting
First 12 and support 13, so that the face face camera 12 equal as far as possible of each tester.If being adjusted as far as possible it is impossible to meet the requirement
Section camera 12 and support 13 meet the requirements the facial direction of the tester of the overwhelming majority.Remaining is unsatisfactory for desired test
The face of person can individually carry out facial image acquisition again.Collecting efficiency is improved to the greatest extent.
The embodiment of the invention also provides a kind of eye tracker detection systems, as shown in Fig. 2, including any of the above-described embodiment
Eye tracker further includes support unit 3.
Support unit 3 has bracket 31, supporting element 32 and second distance sensor 33.Bracket 31 is connect with supporting element 32,
For controlling the rotation of supporting element 32 and lifting.Supporting element 32 is used to support the face of tester.Second distance sensor 33 is arranged
On bracket 31.The first distance sensor 14 of acquisition unit 1 is electrically connected with second distance sensor 33, to measure support unit
Measuring distance between 3 and acquisition unit 1.Control unit is according to the measuring distance of measurement, and control support 13 is with respect to support unit 3
It is mobile, so that tester is in the preset acquisition range of camera 12.
In one embodiment, arcuate structure can be used in supporting element 32, and the shape of arc is adapted with the shape of face of people.For
Offer comfort level, can be arranged face support at the chin relative position of supporting element 32 and people, and face support is soft using rubber or sponge etc.
Property material.
In one embodiment, bracket 31 includes liftable telescopic rod 311 and fixing seat 312, one end of telescopic rod 311
It is rotatablely connected with fixing seat 312, the other end of telescopic rod 311 is fixedly connected with supporting element 32.First supporting element 311 is able to drive
Supporting element 32 is gone up and down, moreover it is possible to drive supporting element 32 to rotate, so that still being able to after the face of tester is placed on supporting element 32
It moves freely, the constraint of unsupported unit 3.And acquisition unit 1 can be mobile with the face of tester, changes acquisition unit 1
Camera 12 with respect to tester's face position so that the face of tester remains at the acquisition visual field of camera 12
In.
In one embodiment, supporting element 32 is only rotated in a certain range, so that camera 12 acquired
The data of the face-image of tester have more availability.
In one embodiment, telescopic rod 311 is multiple, and each telescopic rod 311 is arranged at intervals in fixing seat 312, and each
Supporting element is provided on telescopic rod 311.To realize the camera 12 of acquisition unit 1 while acquire the face of multiple testers
Image improves collecting efficiency.
The embodiment of the invention provides a kind of eye tracker detection methods, as shown in figure 3, comprising steps of
S100: according to the quantity of tester and position, adjusting the acquisition posture of acquisition unit, so that the equal position of all testers
In can acquire in the visual field.For example, the camera rotation of adjustment acquisition unit, or the bearing sliding of adjustment acquisition unit.
S200: according to the face-image of the tester of acquisition unit acquisition, judge whether the facial direction of tester meets
Acquisition requires.Judge whether the facial direction of tester meets acquisition requirement and can divide at least two situations.When the quantity of tester
When for a people, acquisition required standard is whether the face of tester is located at the center of camera pickup area, and tester
Facial face camera.When the quantity of tester is multiple people, acquisition required standard can be the face of each tester
Whether it is respectively positioned in camera pickup area, and whether the face of each tester can be collected by camera.
S300: requiring if not meeting acquisition, and the face for controlling acquisition unit with respect to tester acts, and makes tester
Facial direction meet acquisition require.Movement includes sliding, lifting and rotation.For example, control support driving display screen is opposite
Tester is mobile, and control support driving display screen is gone up and down with respect to tester, and control camera is rotated relative to tester.
S400: analyzing the face-image that acquisition requires that meets of acquisition, to obtain the letter of the eye in face-image
Cease data.The interest point information and action message at heart of tester can be obtained according to the eye information data of tester.
In one embodiment, when in the acquisition visual field of acquisition unit without tester, it can control acquisition unit rotation, look into
See that acquisition unit nearby whether there is tester.For example, the camera of control acquisition unit is rotated to obtain tester.For another example,
The support for controlling acquisition unit is mobile, expands the visual range of acquisition unit, to obtain the survey for being located at acquisition unit sight quadrangle
Examination person.
In one embodiment, as shown in figure 4, according to the quantity of tester and position, the acquisition appearance of acquisition unit is adjusted
State, comprising steps of
S110: obtain acquisition unit between the face of tester at a distance from.
S120: judge distance whether in preset acquisition range.
S130: if not in preset acquisition range, controlling acquisition unit to the movement of the facial direction of tester, until
The distance between acquisition unit and the face of tester are in preset acquisition range.
It should be noted that embodiment of the method for the invention can be applied to the eye tracker and eye tracker of any of the above-described embodiment
In detection system.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or hidden
It include at least one this feature containing ground.In the description of the present invention, the meaning of " plurality " is two or more, unless otherwise
Clear specific restriction.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable read-only memory
(CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other suitable Jie
Matter, because can then be edited, be interpreted or when necessary with other for example by carrying out optical scanner to paper or other media
Suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In readable storage medium storing program for executing.The storage medium can be read-only memory, disk or CD etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in its various change or replacement,
These should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor of the claim
It protects subject to range.
Claims (10)
1. a kind of eye tracker characterized by comprising
Acquisition unit has display screen, camera and support；The camera is rotatably arranged on the display screen, is used
In the face-image for acquiring at least one tester；The support is connect with the display screen, sliding for controlling the display screen
Dynamic and lifting；
Control unit is electrically connected with the camera and the support；Described control unit is used to be acquired according to the camera
The face-image, judge the facial direction of the tester whether meet acquisition require, if do not meet acquisition require, control
The face that the camera and/or the support are made relative to the tester is mobile, to be adapted to the facial direction of the tester,
Make the facial direction of the tester meet acquisition to require.
2. eye tracker as described in claim 1, which is characterized in that the support includes liftably support rod and pedestal, institute
The one end for stating support rod is connect with the display screen, and the other end of the support rod is connect with the pedestal, the support pole-footing
The display screen is driven to be gone up and down according to the instruction of described control unit.
3. eye tracker as described in claim 1, which is characterized in that first distance sensor is provided on the support, it is described
First distance sensor is electrically connected with the control unit, and the first distance sensor is used to measure the face of the tester
The distance between described acquisition unit, and it is sent to described control unit.
4. eye tracker as claimed in claim 3, which is characterized in that be provided with sliding equipment, the skate machine on the support
Structure drives the display screen to be slided according to the instruction of described control unit, to adjust the relatively described test of the acquisition unit
The distance of the face of person.
5. eye tracker as described in claim 1, which is characterized in that described control unit includes image processing module and control mould
Block；Described image processing module is electrically connected with the camera, and the face-image for acquiring to the camera carries out
Analysis, judges whether the facial direction of the tester meets acquisition and require；The control module handles mould according to described image
The analysis of block is as a result, the face for controlling the camera and/or the support relative to the tester is mobile.
6. a kind of eye tracker detection system, which is characterized in that including eye tracker as described in any one in claim 1-5, also wrap
It includes:
Support unit has bracket, supporting element and second distance sensor, and the bracket is connect with the supporting element, for controlling
Make the supporting element rotation and lifting；The supporting element is used to support the face of the tester；The second distance sensor
Setting is on the bracket；The second distance sensor is electrically connected with the first distance sensor on the support, with measurement
The distance between the support unit and the acquisition unit, described control unit is according to the distance of measurement, described in control
Support is mobile relative to the support unit, so that the tester is in the preset acquisition range of the camera.
7. eye tracker detection system as claimed in claim 6, which is characterized in that the bracket include liftably telescopic rod and
Fixing seat, one end of the telescopic rod and the fixing seat are rotatablely connected, and the other end of the telescopic rod and the supporting element are solid
Fixed connection.
8. eye tracker detection system as claimed in claim 7, which is characterized in that the telescopic rod be it is multiple, it is each described flexible
Bar is arranged at intervals in the fixing seat, and is provided with the supporting element on each telescopic rod.
9. a kind of eye tracker detection method characterized by comprising
According to the quantity of tester and position, the acquisition posture of acquisition unit is adjusted, so that be respectively positioned on can by all testers
It acquires in the visual field；
According to the face-image of the tester of acquisition unit acquisition, judge whether the facial direction of the tester accords with
Acquisition is closed to require；
If not meeting acquisition to require, the face for controlling the relatively described tester of the acquisition unit is acted, and makes the survey
The facial direction of examination person meets acquisition and requires；The movement includes sliding, lifting and rotation；
The face-image that acquisition requires that meets of acquisition is analyzed, to obtain the eye information in the face-image
Data.
10. eye tracker detection method as claimed in claim 9, which is characterized in that according to the quantity of tester and position, adjustment
The acquisition posture of acquisition unit, further includes:
Obtain the distance between the face of the acquisition unit Yu the tester；
Judge the distance whether in preset acquisition range；
If controlling the acquisition unit not in the preset acquisition range and being moved to the facial direction of the tester,
Until the distance between the acquisition unit and the face of the tester is in the preset acquisition range.
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