CN109124575A - Multispectral skin of face image acquiring device and system - Google Patents

Abstract

It includes: image acquisition unit that the present invention, which provides a kind of multispectral skin of face image acquiring device and system, the device,；Lighting unit, for providing at least one illumination condition including polarised light；Filter switch unit, for only making the diffusing into image acquisition unit of detected object skin of face when providing polarised light illumination condition, and enter all reflected lights of detected object skin of face in image acquisition unit when providing other illumination conditions；And control unit.The present invention can be under the standardization shooting condition and environment of unified colour temperature, the depth of field, light source position, exposure parameter, shooting background and detected object face position, the detected object skin of face image completed under a variety of illumination conditions including polarised light automatically continuously obtains, not only make the skin quality analysis result accuracy obtained according to these images and repetition consistency preferable, but also can reflect the skin quality situation of detected object skin of face comprehensively.

Description

Multispectral skin of face image acquiring device and system

Technical field

The present invention relates to skin imaging techniques fields, and in particular to a kind of multispectral skin of face image acquiring device and is System.

Background technique

With the development of image processing techniques, by obtaining skin of face image, and then image is stored, is analyzed, Realize that skin of face skin quality Non-invasive detection has become the research hotspot of dermatology, beautifying skin field.Based on image analysis When realizing skin of face skin quality Non-invasive detection, key is to need to obtain standardization sufficiently comprising skin of face skin quality feature Skin of face image.

However in the prior art, it is difficult to realize the standardization of detected object skin of face image taking, image is easy It is many to be illuminated by the light condition, colour temperature, the depth of field, light source position, exposure parameter, shooting background and detected object face position chanP etc. Factor influences, so that the skin quality analysis result accuracy that obtains according to these images and to repeat consistency bad.In addition, single light The skin of face image got according under the conditions of can not sufficiently include that the skin of face skin quality of detected object skin of face is special Sign, to can not reflect the skin quality situation of skin comprehensively according to the obtained skin quality index of above-mentioned image processing and analyzing, especially It is the skin quality feature in skin base layer.

Summary of the invention

The embodiment of the present invention provides a kind of multispectral skin of face image acquiring device and system, to solve in the prior art It is difficult to realize the standardization of detected object skin of face image taking and illumination condition is single, so that being obtained according to these images Skin quality analysis result accuracy and to repeat consistency bad and the problems such as cannot reflect the skin quality situation of skin comprehensively.

In a first aspect, the embodiment of the present invention provides a kind of multispectral skin of face image acquiring device, described device includes:

Image acquisition unit, for obtaining detected object skin of face image；

Lighting unit, for providing at least one illumination condition including polarised light to described image acquiring unit；

Filter switch unit is arranged between described image acquiring unit and the lighting unit, in the illumination When unit provides polarised light illumination condition, only make diffusing into described image acquiring unit for detected object skin of face In；And when the lighting unit provides other illumination conditions, so that all reflected lights of detected object skin of face is entered institute It states in image acquisition unit；

Control unit, for controlling described image acquiring unit, the lighting unit and the filter switch unit with reality The automatic continuous acquisition of detected object skin of face image under present different illumination conditions.

As the preferred embodiment of first aspect present invention, the lighting unit includes hemispherical reflector and soft light cover, institute It states soft light cover to be arranged on the inside of the reflector, the bottom position of the soft light cover and the reflector is coaxially provided with loophole； Cricoid standard white light light source and 465nm blue light source are equipped between the reflector and the soft light cover, in the soft light cover The same even circumferential of lateral edge is provided with 940nm infrared light light source, the first polarizing light source, UVA ultraviolet source and second partially Shake radiant, wherein the polarization direction of first polarizing light source and the polarization direction of the second polarizing light source are mutually hung down Directly.

As the preferred embodiment of first aspect present invention, the lighting unit further includes light source controller, the light source control Device processed is polarized with the standard white light light source, the 465nm blue light source, the 940nm infrared light light source, described first respectively Radiant, the UVA ultraviolet source are connected with second polarizing light source, and the light source controller is also single with the control Member connection.

As the preferred embodiment of first aspect present invention, the 940nm infrared light light source, first polarizing light source, The UVA ultraviolet source and second polarizing light source are respectively arranged with two, wherein same category of light source is opposite Setting.

As the preferred embodiment of first aspect present invention, the filter switch unit includes rotatable circular disc, and setting exists The bottom side of the reflector；It is respectively arranged with the first circular hole, the second circular hole and third circular hole on the disk, described first The center of circle of circular hole, second circular hole and the third circular hole is located on same circumference, and can divide in the disc rotary It is not directed at the loophole to make respective ray of light enter in described image acquiring unit；

First circular hole is equipped with the first analyzer, and second circular hole is equipped with the second analyzer, wherein described the The polarization direction of one analyzer and the polarization direction of first polarizing light source are mutually perpendicular to, second analyzer Polarization direction and the polarization direction of second polarizing light source are mutually perpendicular to.

As the preferred embodiment of first aspect present invention, the disk is driven by stepper motor and is revolved around straight line where the center of circle Turn, the stepper motor is connected with motor driver, and the motor driver is also connect with described control unit.

As the preferred embodiment of first aspect present invention, at least one magnetic stripe, the magnetic stripe are additionally provided on the disk It is arranged at the different location of the disk；When the disc rotary, pass through magnetic stripe described in double track magnetism-head detection and control institute The rotational angle of stepper motor is stated, it is described be respectively aligned to first circular hole, second circular hole and the third circular hole Loophole is to make respective ray of light enter in described image acquiring unit, wherein the double track magnetic head also connects with described control unit It connects.

As the preferred embodiment of first aspect present invention, described device further includes position-limiting unit, for detected object Facial positions are defined；

The position-limiting unit includes the first limiting section, the second limiting section and for adjusting first limiting section and described The regulating device of distance between second limiting section is opened wherein being equipped with fine motion on first limiting section and second limiting section It closes, the microswitch is also connect with described control unit.

As the preferred embodiment of first aspect present invention, described device further includes network unit and sound wave receiving unit, Described in network unit be attached and interact for realizing with the Cloud Server of distal end, the acoustic receiver unit is for passing through External intelligent terminal realizes the initiation parameter configuration to the network unit and the binding with Cloud Server；The network Unit and the acoustic receiver unit are connect with described control unit respectively.

As the preferred embodiment of first aspect present invention, described device further includes voice alerting unit, status display unit With bluetooth communication unit, wherein the voice alerting unit be used in face-image acquisition process to detected object carry out language Sound prompt, the status display unit for showing current working condition, the bluetooth communication unit for realizing with outside Cosmetic apparatus be attached and interact；The voice alerting unit, the status display unit and the bluetooth communication unit It is connect respectively with described control unit.

Second aspect, the embodiment of the present invention provide a kind of multispectral skin of face image-taking system, the system comprises Cloud Server, at least one intelligent terminal and the multispectral skin of face image as described in any one of above-mentioned first aspect obtain Take device；Wherein, the Cloud Server connects with the intelligent terminal and the multispectral skin of face image acquiring device respectively It connects.

A kind of multispectral skin of face image acquiring device provided in an embodiment of the present invention is obtained single by setting image Member, lighting unit and filter switch unit, and can be in unified colour temperature, the depth of field, light source under the control and coordination of control unit Position, exposure parameter, shooting background and detected object face position standardization shooting condition and environment under, complete to tested It surveys skin of face image of the subjects face skin under a variety of illumination conditions including polarised light automatically continuously to obtain, not only So that the skin quality analysis result accuracy that obtains according to these images and to repeat consistency preferable, and can reflect comprehensively tested The skin quality situation for surveying subjects face skin, is particularly in the skin quality feature of skin base layer.

In addition, not only realizing intelligence by further establishing connection with Cloud Server and intelligent terminal and interacting Terminal also achieves skin of face image in remote analysis of the Cloud Server based on big data and returns to the remote operation of the device Shelves processing, the skin quality judge quantizating index to form unified later provide good basis.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the structural schematic diagram of multispectral skin of face image acquiring device provided in an embodiment of the present invention；

Fig. 2 is the structural representation of lighting unit in multispectral skin of face image acquiring device provided in an embodiment of the present invention Figure；

Fig. 3 is the structure of filter switch unit in multispectral skin of face image acquiring device provided in an embodiment of the present invention Schematic diagram；

Fig. 4 is the disk of filter switch unit in multispectral skin of face image acquiring device provided in an embodiment of the present invention Structural schematic diagram；

Fig. 5 is the use state diagram of multispectral skin of face image acquiring device provided in an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of multispectral skin of face image-taking system provided in an embodiment of the present invention.

Wherein, 201, soft light cover, 202,940nm infrared light supply, 203, UVA ultraviolet source, the 204, first polarizing light source, 205, the second polarizing light source, 206, loophole；

301, disk, 302, stepper motor, 303, magnetic stripe, 304, double track magnetic head；

401, the first circular hole, the 402, second circular hole, 403, third circular hole；

501, image acquisition unit, 502, filter switch unit, 503, lighting unit, 504, position-limiting unit, 5041, first Limiting section, the 5042, second limiting section.

Specific embodiment

In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work It encloses.

The detection of skin of face skin quality is not only the important tool of research skin aging and anti-ageing out-of-date methods, and realizes to beauty The weight that different age group population face skin quality is objectively evaluated in appearance skin care item, instrument beauty therapeutic recruitment evaluation and region Want means.However, when being tested and analyzed by the skin quality that image processing techniques carries out skin of face to detected object, qualitative point Analysis result and quantizating index data accuracy and repeatedly consistency depend not only on skin quality analyze in skin index feature it is each A algorithm is more dependent on the standardization of the skin image of shooting, such as unified illumination condition, colour temperature, the depth of field, light source position, The factors such as exposure parameter, shooting background and detected object face position chanP influence；In addition, if the skin image obtained Illumination condition it is single if, can not sufficiently include detected object skin of face skin quality feature.Therefore, sufficiently packet is obtained The standardization skin of face image of the feature of skin quality containing skin of face is to realize skin of face skin quality Non-invasive detection based on image analysis Key point.

Referring to Fig.1 and shown in Fig. 5, the embodiment of the invention discloses a kind of multispectral skin of face image acquiring devices, should Device includes:

Image acquisition unit 501, for obtaining detected object skin of face image；

Lighting unit 503, for providing at least one illumination condition including polarised light to image acquisition unit；

Filter switch unit 502 is arranged between image acquisition unit and the lighting unit, for mentioning in lighting unit When for polarised light illumination condition, only make diffusing into image acquisition unit for detected object skin of face；And it is shining When bright unit provides other illumination conditions, enter all reflected lights of detected object skin of face in image acquisition unit；

Control unit, for controlling image acquisition unit 501, lighting unit 503 and filter switch unit 502 to realize The automatic continuous acquisition of detected object skin of face image under different illumination conditions.

In the present embodiment, by the lighting unit of setting, at least one illumination item for being capable of providing including polarised light Part, and optimization is further filtered to polarised light illumination therein by filter switch unit, finally make to enter image acquisition Various illumination conditions in unit reach optimum state.It, can be in unified color meanwhile under the control and coordination of control unit Temperature, the depth of field, light source position, exposure parameter, shooting background and detected object face position standardization shooting condition and environment Under, it completes automatic to skin of face image of the detected object skin of face under a variety of illumination conditions including polarised light It continuously acquires.

Specifically, the image acquisition unit in the present embodiment is made of camera and camera lens.Wherein, camera preferably carries The Basler Med ace 12.3MP30Color camera of Sony IMX253CMOS chip, the resolution ratio of the CMOS chip are greater than 12000000 pixels；Camera lens is carrying out different illumination conditions lower face skin image by the way of fixed aperture and fixed focal length Acquisition process in, focus is fixed on the facial fixed-focus region of detected object.

Meanwhile camera has data-interface and connect with control unit, camera is according to illumination different in control unit Under the conditions of preset shutter speed the shutter of camera is controlled, while acquired skin of face image being connect by data Oral instructions are transported to control unit and are temporarily stored.Match in lighting unit and the coordination for being mounted on the filter switch unit before camera lens Under conjunction, camera completes the automatic continuous acquisition of the skin of face image to detected object under different illumination conditions.

Specifically, the control unit in the present embodiment is using ARM series microprocessor, carrying WinCE operating system Embedded system can control and coordinate image acquisition units, lighting unit, the work between filter switch unit, completes quilt Image of the test object skin of face under different illumination conditions is automatically continuously shot, and is carried out to the skin of face image of acquisition Interim storage.

On the basis of the above embodiments, referring further to Figure 2 and shown in Fig. 5, lighting unit 503 includes that hemispherical is reflective Cover and soft light cover 201, soft light cover 201 are arranged on the inside of reflector, and the bottom position of soft light cover 201 and reflector is coaxially provided with Unthreaded hole 206；Cricoid standard white light light source and 465nm blue light source, soft light cover 201 are equipped between reflector and soft light cover 201 The interior same even circumferential of lateral edge is provided with 940nm infrared light light source 202, the first polarizing light source 204, UVA ultraviolet source 203 and second polarizing light source 205, wherein the polarization direction of the first polarizing light source 204 and the second polarizing light source 205 Polarization direction is mutually perpendicular to.

In the present embodiment, lighting unit can provide standard white light and 465nm blue light, 940nm infrared light, the first polarization This six kinds of illumination conditions of light, UVA ultraviolet light and the second polarised light, due to and not all skin of face problem can be in standard The skin of face image clearly observed under white-light illuminating, therefore preferably obtained under these types of illumination condition, can be relatively more abundant Ground includes skin of face skin quality feature, can reflect the skin quality situation of detected object skin of face comprehensively, be particularly in skin The skin quality feature of skin basal layer.

Wherein, under standard white light illumination, the texture on skin of face surface, wrinkle, pore, roughness, moisture, oil content, Whitening degree etc. can be clear on acquired image as it can be seen that therefore based on the skin of face image under standard white light illumination, application Corresponding image analysis technology can analyze texture, wrinkle, pore, roughness, the moisture, oil content of detected object skin of face And the features such as whitening degree of skin；

Under UVA UV Light, it is can be enhanced in image in the melanin selective absorbing light on skin of face surface On display, the ultraviolet spot on skin of face surface, sclererythrin, porphyrin, grease etc. can it is limpid in sight on acquired image as it can be seen that Therefore based on the skin of face image under UVA UV Light, it can analyze detected pair using corresponding image analysis technology As the ultraviolet spot of skin of face, sclererythrin, porphyrin, grease equal distribution and index；

Under 940nm infrared light illumination, the capillary on skin of face surface can be limpid in sight on acquired image As it can be seen that therefore based on the skin of face image under 940nm infrared light illumination, using corresponding image analysis technology can analyze by The lesion situation of the capillary on test object skin of face surface；

Under 465nm blue light illumination, the fluorescence on skin of face surface residual can it is limpid in sight on acquired image can See, therefore based on the skin of face image under 465nm blue light illumination, can analyze using corresponding image analysis technology detected The distribution and index of subjects face skin fluorescence residue；

Under polarised light illumination, skin of face surface fine structure below and pigment can become clear on acquired image It is high-visible, therefore based on the skin of face image under polarised light illumination, it can analyze color using corresponding image analysis technology The skin quality index such as disposition skin lesion, sulci of skin, cutaneous ridge, skin mound, spot；Meanwhile it is inclined to use polarization direction orthogonal first Shake light and the second polarised light, using corresponding image analysis technology to the facial skin under the first polarised light and the second polarised light illumination Skin image carries out alternate analysis, can effectively improve the accuracy of analysis result.

The detected object skin of face image that image acquisition unit is continuously shot includes: detected object " eye opening " shape State lights the skin of face image under standard white light illumination condition using blood-shot eye illness mode is eliminated；Detected object " eye closing " state, Respectively in this six kinds of standard white light, UVA ultraviolet light, the first polarised light, the second polarised light, 940nm infrared light and 465nm blue light Skin of face image under illumination condition.Wherein, the skin of face image under detected object " eye opening " state is used for face face Portion's identification, the skin of face image of other six width detected object " eyes closing " states are used for dermatoglyph, color, wrinkle, coarse The analysis of the indexs such as degree, moisture, oil content, pigment, capillary, pore, sclererythrin, fluorescence reaction is handled.

Specifically, the soft light cover for being provided with hemispherical reflector in lighting unit and being arranged on the inside of reflector forms one A semi-enclosed shooting physical space is conducive to provide unified and standardized shooting condition.In the face to detected object When skin is shot, reflector and soft light cover are covered on to the face of detected object.Soft light cover front openings end face Diameter is not less than 35cm, and size is advisable with the front for being large enough to hold adult human face.

Preferably, reflector uses forms with a thickness of the aluminium sheet extrusion stretching of 0.8mm, chromium plating after surface polishing；Soft light cover It is formed using white clear AS material injection, the visible light that AS material can be 380-780nm completely through wave-length coverage.

Therefore, circlewise by standard white light light source, the design of 465nm blue light source, it is separately mounted to reflector and soft light cover Between, soft diffused light is converted straight rays to by soft light cover, to be more suitable for reflecting detected object skin of face Form and color.During concrete implementation, standard white light light source is one and is uniformly distributed several colour temperatures as 5500K The cyclic annular wiring board of standard white light LED, and 465nm blue light source is the LED for being uniformly distributed several wavelength as 465nm Cyclic annular wiring board.

Since UVA ultraviolet light and 940nm infrared light can not penetrate the soft light cover made of AS material, and the first polarised light and Although the second polarised light can penetrate soft light cover, and the reflected light formed after soft light cover and refraction light remain on as linear polarization Light, but its polarization direction is but changed, and the refraction coefficient of situation and incident angle and sheen cover material is changed Correlation, it is subsequent that the image for making to get under this illumination condition can not be filtered this out through corresponding analyzer It is ineffective.

Therefore, these four light sources need to be arranged in the inside of soft light cover.By each route of these four light sources of the formation Plate is mounted in the ABS shell of same size according to uniform sizes specifications design, and the light-emitting surface of shell is equipped with opening, and at it It is upper that corresponding filter is installed respectively.

Above-mentioned light source finished product on soft light cover along the same circumference, with embedded mode uniform ring around being set in soft light cover Side.During concrete implementation, UVA ultraviolet source, which is one, is uniformly distributed the UV-LED that several wavelength are 365nm Wiring board, and in the narrowband light passing filter that the aperture position installation center wavelength of its shell light-emitting surface is 365nm；940nm is infrared Radiant is the wiring board for being uniformly distributed the infrared LED that several wavelength are 940nm, and in the opening of its shell light-emitting surface Position installation center wavelength is the narrowband light passing filter of 940nm；First polarizing light source and the second polarizing light source are one respectively A wiring board for being uniformly distributed the standard white light LED that several colour temperatures are 5500K, and pacify in the aperture position of its shell light-emitting surface Load polariscope.Wherein, the polarization direction of the polarizer of the first polarizing light source and the polarizer of the second polarizing light source is inclined Vibrationization direction is mutually perpendicular to.

In addition, the bottom position of soft light cover and reflector is also coaxially provided with loophole, light that each light source generates and Light by generations such as reflections can be passed through from the loophole, further enter image acquisition unit through filter switch unit In camera lens.

It should be noted that reflector, standard white light light source and 465nm blue light light are not shown due to visual angle, in Fig. 2 Source.

On the basis of the above embodiments, lighting unit 503 further includes light source controller, light source controller respectively with standard White light source, 465nm blue light source, 940nm infrared light light source 202, the first polarizing light source 204, UVA ultraviolet source 203 It is connected with the second polarizing light source 205, light source controller is also connect with control unit.

In the present embodiment, by lighting unit be arranged light source controller, it can be achieved that for illumination light source selection, Control and driving.Control unit is issued according to the timing for obtaining different illumination conditions lower face skin image to light source controller Light source selection signal realizes the automation selection of illumination condition to drive corresponding light source igniting by light source controller.

It should be noted that light source controller is using Light Source Control Equipment conventional in the prior art, it is only as one Vertical component can be set at the position other than the reflector and soft light cover of lighting unit according to concrete condition, and the present invention is real Example is applied to be not construed as limiting the specific setting position of light source controller.

On the basis of the above embodiments, 940nm infrared light light source 202, the first polarizing light source 204, UVA ultraviolet light light Source 203 and the second polarizing light source 205 are respectively arranged with two, wherein same category of light source is oppositely arranged.

In the present embodiment, when 940nm infrared light light source, the first polarizing light source, UVA ultraviolet source and the second polarised light When light source is also designed to ring-type, it can achieve optimal effect, not only meet lighting requirements, can also make to be irradiated to detected The uniform intensity at each position of subjects face is consistent.

However, due to these four light sources be required to the aperture position of its light-emitting surface install corresponding narrowband light passing filter or Polarizer, and cricoid narrowband light passing filter or polarizer can greatly increase cost of manufacture, and light source design circlewise afterwards can It is limited by space in soft light cover, excessive cyclic annular light source can also stop the light of standard white light light source and 465nm blue light source Line.Therefore, above-mentioned four kinds of light sources are respectively provided with two in the present embodiment, and same category of light source is arranged in a symmetrical On the inside of soft light cover, the installation question of each light source can be preferably solved, while may also reach up preferable lighting effect.

For soft light cover can be projected to form an annulus in a kind of possible embodiment convenient for each light source is arranged, And coordinate system is established using the center of annulus as coordinate origin, then the symmetric position in X-axis positioned at coordinate origin two sides is each Be arranged two identical UVA ultraviolet sources, in Y-axis positioned at coordinate origin two sides symmetric position be respectively arranged two it is identical 940nm infrared light light source at 45 degree of angles and is traversed to be located on the straight line of third quadrant and is sat in first quartile with X-axis positive direction Mark origin two sides symmetric position two identical first polarizing light sources are respectively set, in the second quadrant with Y-axis positive direction at The symmetric position that 45 degree of angles and traversing on the straight line of fourth quadrant are located at coordinate origin two sides is respectively arranged two identical second Polarizing light source.

It should be noted that above-mentioned each light source is identical at a distance from coordinate origin, so that it is guaranteed that each light source is uniformly set It sets on the same circumference on the inside of soft light cover.

On the basis of the above embodiments, with further reference to shown in Fig. 3, Fig. 4 and Fig. 5, filter switch unit 502 includes can The bottom side of reflector is arranged in rotating circular disk 301；The first circular hole 401, the second circular hole are respectively arranged on disk 301 402 and third circular hole 403, the center of circle of the first circular hole 401, the second circular hole 402 and third circular hole 403 be located on same circumference, and Loophole 206 can be respectively aligned to when disk 301 rotates to make respective ray of light enter in image acquisition unit；

First circular hole 401 is equipped with the first analyzer, and the second circular hole 402 is equipped with the second analyzer, wherein the first analyzing The polarization direction of mirror and the polarization direction of the first polarizing light source 204 are mutually perpendicular to, the polarization direction of the second analyzer It is mutually perpendicular to the polarization direction of the second polarizing light source 205.

In the present embodiment, at least one illumination item of the lighting unit to image acquisition unit offer including polarised light After part, optimization is filtered by the polarised light illumination condition that filter switch unit further provides lighting unit, and is compareed Other illumination conditions that bright unit provides optimize without filtering, finally reach the illumination condition entered in image acquisition unit Most preferably.

Specifically, rotatable using disk made of nonmetallic materials provided with one in filter switch unit, and It is respectively provided with three the first circular hole, the second circular hole and third circular hole circular holes on disk, while ensuring the first circular hole, the second circle Hole and the center of circle of third circular hole are located on same circumference.The bottom side of the reflector of lighting unit is arranged in the disk, in circle The other side of disk be image acquisition unit camera lens, disk when rotated, these three circular holes can be respectively aligned to loophole to Enter respective ray of light in the camera lens of image acquisition unit, while being ensured that loophole, the circular hole on disk and camera lens three Optics is coaxial.

Further, the first analyzer and the second analyzing are fixed respectively with embedded mode on the first circular hole and the second circular hole Mirror, and it is mutually perpendicular to the polarization direction of the first analyzer and the polarization direction of the first polarizing light source, the second analyzer Polarization direction and the polarization direction of the second polarizing light source be mutually perpendicular to.

The first polarizing light source in lighting unit and the polarizer in the second polarizing light source and filter switch unit In the first analyzer and the second analyzer be all made of linear polarizer made of dichroism material.It is proved by many experiments, First analyzer and the second analyzer using circular polarization or ellipsoidal polarizing plate and use linear polarizer no significant difference in effect, But when using linear polarizer, the complexity and cost of whole device can all be reduced very much.

It should be noted that the diameter of the first circular hole, the second circular hole and third circular hole is both needed to greater than image acquisition unit The optics Entry pupil diameters of camera lens ensure to be filtered optimization to the polarised light in polarised light illumination condition completely in this way, with And guarantee that light passes through completely in other illumination conditions.In addition, the first circular hole, the diameter of the second circular hole and third circular hole and light transmission The diameter in hole is consistent.

For each circular hole is arranged convenient for the position of each light source in corresponding lighting unit, in a kind of possible embodiment In, coordinate system can will be established using the center of circle of disk as coordinate origin, then respectively first quartile, the second quadrant and third as Circular hole is set in limit, and respectively as the first circular hole, the second circular hole and third circular hole, circular hole is not provided in fourth quadrant.Its In, the center of circle of these three circular holes is identical at a distance from coordinate origin, and the center of circle of the first circular hole and the setting of the center of circle of third circular hole It at 45 degree of angles and is traversed on the straight line of third quadrant in first quartile with X-axis positive direction, and is located at coordinate origin two sides In symmetric position, the center of circle of the second circular hole be arranged in the second quadrant on straight line of the Y-axis positive direction at 45 degree of angles.

On the basis of the above embodiments, disk 301 is driven by stepper motor 302 and around straight line rotation where the center of circle, step It is connected with motor driver into motor 302, motor driver is also connect with control unit.

In the present embodiment, stepper motor drives disk straight line rotation where the center of circle, and stepper motor further by with its Connected motor driver driving, and motor driver is connected with control unit, realizes the automation control to stepper motor.Step Into motor driven disk rotational, by the front end of the camera lens of different circular hole alignment image acquisition units, and make circular hole and camera lens light It learns coaxial.

Control unit issues light source according to the timing for obtaining different illumination conditions lower face skin image, to light source controller Selection signal, to further issue rotation letter to motor driver after driving corresponding light source igniting by light source controller Number, make the loophole of the position alignment lighting unit of corresponding circular hole position or not aperture and image acquisition unit on disk Camera lens realizes that the automation to disk rotates control.

On the basis of the above embodiments, at least one magnetic stripe 303 is additionally provided on disk 301, magnetic stripe 303 is arranged in circle At the different location of disk 301；When disk 301 rotates, magnetic stripe 303 and control stepper motor 302 are detected by double track magnetic head 304 Rotational angle, to make the first circular hole 401, the second circular hole 402 and third circular hole 403 be respectively aligned to loophole 206 to making phase Light is answered to enter in image acquisition unit, wherein double track magnetic head 304 is also connect with control unit.

In the present embodiment, it is also provided at least one magnetic stripe at the different location at disk border, double track magnetic head is set The side-lower in disk is set, so that disk passes through double track magnetism-head detection magnetic stripe when rotated and controls the rotation of stepper motor Angle determines the position of each circular hole on disk.

Further, double track magnetic head is also connect with control unit, so that under the control of the control unit, it is right on disk to make The position of the circular hole position or not aperture answered can be accurately aimed at the loophole of lighting unit.

In addition, double track magnetic head further includes having a detection circuit, double track magnetic head and the detection circuit are designed in same On wiring board, double track magnetic head is connect by the detection circuit with control unit.

In a kind of possible embodiment, coordinate system can will be established as coordinate origin using the center of circle of disk, first At 45 degree of angles and the straight line of third quadrant is traversed to X-axis positive direction in quadrant, in first quartile and third quadrant and disk The junction at edge a magnetic stripe is respectively set；At 45 degree of angles and the 4th is traversed to Y-axis positive direction in the second quadrant Two magnetic stripes are arranged in the junction at the second quadrant and the edge of disk, in fourth quadrant and disk in the straight line of quadrant A magnetic stripe is arranged in the junction at edge.

After the completion of device booting is powered on and automatically continuously shot, control unit controls stepper motor and drives disk rotary Turn, when being detected simultaneously by two magnetic stripes, control unit determines that the position of disk fourth quadrant not aperture has been directed at image acquisition The camera lens front end of unit, and this position is defined as to the initial position of disk.At this point, the position of the fourth quadrant not aperture of disk It is directed at the front end of the camera lens of image acquisition unit, disk blocks light and dust enters in the camera lens of image acquisition unit, real Now to the physical protection of camera lens.The disc-rotated angle of stepper motor is controlled by starting point of initial position, and by double The detection signal of rail magnetic head realizes the coaxial positioning of the different circular holes and the camera lens of image acquisition unit on disk.For example, Since initial position, when stepper motor driving disk rotates clockwise 90 °, and double track magnetic head is detected simultaneously by a magnetic stripe When, then it can determine the camera lens front end of the first circular hole on disk at this time alignment cameras.

When obtaining the face for lighting detected object " eye opening " state under standard white light illumination condition in a manner of blood-shot eye illness to eliminate Skin image, and obtain detected object under standard white light, UVA ultraviolet light, 940nm infrared light, 465nm blue light illumination condition When the skin of face image of " eye closing " state, control unit controls stepper motor and drives disc rotary, by disk third quadrant position Set the camera lens front end of the third circular hole alignment image acquisition unit at place.Under the illumination condition of above-mentioned light source, from detected pair As all reflected lights of skin of face will enter the mirror of image acquisition unit by the third circular hole on disk third quadrant position Head, the camera of image acquisition unit obtain the skin of face image under above-mentioned each illumination condition when shooting.

When obtaining the skin of face image of detected object " eye closing " state under the first polarised light illumination condition, control is single Member control stepper motor drives disc rotary, by the camera lens of the first circular hole alignment image acquisition unit of disk first quartile position Front end.Due to the first polarizing light source in the polarization direction and lighting unit of the first analyzer being arranged at first circular hole Polarization direction be mutually perpendicular to, under the first polarised light illumination condition, the mirror-reflection from detected object skin of face Light is stopped completely by the first analyzer, only makes diffusing through the first analyzer from detected object skin of face, into Enter in the camera lens of image acquisition unit, the camera of image acquisition unit obtains the face under the first polarised light illumination condition when shooting Skin image.

When obtaining the skin of face image of detected object " eye closing " state under the second polarised light illumination condition, control is single Member control stepper motor drives disc rotary, by the camera lens of the second circular hole alignment image acquisition unit of the second quadrant position of disk Front end.Due to the second polarizing light source in the polarization direction and lighting unit of the second analyzer being arranged at second circular hole Polarization direction be mutually perpendicular to, under the second polarised light illumination condition, the mirror-reflection from detected object skin of face Light is stopped completely by the second analyzer, only makes diffusing through the second analyzer from detected object skin of face, into Enter in the camera lens of image acquisition unit, the camera of image acquisition unit obtains the face under the second polarised light illumination condition when shooting Skin image.

Due to standard white light light wave vector direction of vibration perpendicular to light the direction of propagation, have axial symmetry, therefore Under standard white light lighting condition, skin surface cutin and grease will cause mirror-reflection, figure acquired in image acquisition unit Essence as skin pigment and capillary can not be protruded relatively.To solve the above problems, using polarized light image acquisition methods Eliminate the mirror-reflection of skin surface.A polarizer is added before standard white light light source, is parallel to polarization side in incident light To vibration by polarizer, and be polarized mirror perpendicular to the vibration of polarization direction and absorb, therefore pass through the throwing after polarizer The vibration for penetrating light is limited in a direction of vibration, so that projecting the light source of skin of face becomes polarised light.When light projects Specular light will be formed when to skin of face surface and will be diffused, and wherein specular light remains as polarised light, and unrestrained anti- Penetrating light is non-polarized light, and the two enters in the analyzer in filter switch unit simultaneously.Before the analyzer and corresponding light source Polarizer polarization direction it is orthogonal, therefore complete barrier effect is played to the polarised light of skin mirror-reflection, simultaneously The non-polarized light generated completely by skin diffusing reflection, makes it into the camera lens of image acquisition unit, image acquisition unit Camera has been eliminated the skin of face image of the polarised light spectrum of mirror-reflection when shooting.

On the basis of the above embodiments, with further reference to shown in Fig. 5, described device further includes position-limiting unit 504, is used for Detected object facial positions are defined；

Position-limiting unit 504 includes the first limiting section 5041, the second limiting section 5042 and is used to adjust the first limiting section 5041 and second distance between limiting section 5042 regulating device, wherein on the first limiting section 5041 and the second limiting section 5042 Equipped with microswitch, microswitch is also connect with control unit.

In the present embodiment, the facial position of detected object is fixed by setting position-limiting unit, realizes face-image pair Burnt accuracy.Meanwhile a semiclosed shooting physical space is collectively formed in the reflector of position-limiting unit and lighting unit, is face Portion's skin image acquisition process provides standardized shooting condition and environment, can be to avoid the interference from ambient enviroment.

Specifically, when the skin of face to detected object is shot, the forehead of detected object withstands on the first limit At the portion of position, chin is placed on the second limiting section, so that the facial Postural immobilization of detected object, facial and each light source and figure The distance between camera lens as acquiring unit is fixed, so that it is guaranteed that when carrying out the acquisition of skin of face image to different detected objects The standardized images of identical position can be got.

Further, by lighting unit hemispherical reflector and soft light cover cover on the face of detected object, it is reflective The rear of cover is successively installed by filter switch unit and image acquisition unit.Upper downward can be carried out by being provided on the second limiting section The regulating device of distance between whole face portion the second limiting section of position and the first limiting section, to meet being detected for different facial sizes The needs of object.

It opens the light in addition, respectively installing a fine motion on the first limiting section and the second limiting section, is respectively used to detection and is detected Whether the forehead of object withstands the first limiting section and whether chin is placed on the second limiting section.The two fine motions open the light with control Unit processed is connected, and realizes its signal detection.It should be noted that the fine motion in the present embodiment is opened the light and its detection process is using existing There is technical solution realization, details are not described herein.

In the specific implementation, it respectively corresponds and is provided with for fixing image acquisition unit, lighting unit, filter switch unit And the mounting plate of position-limiting unit, the component for including in each unit, which is reloaded into a plastic shell after being installed, forms one It is whole, facilitate operation.

In the automatic continuous imaging operation of image acquisition unit, the forehead of detected object withstands the first limit always Portion, chin are placed in always on the second limiting section, guarantee image acquisition unit under different illumination continuous imaging operation be all It is completed under the conditions of same focal plane, same facial position.Meanwhile in continuous imaging operating process, it is desirable that detected object is kept Facial expression is natural, loosens, the camera lens of eyes direct view image acquiring unit, and carries out " eye opening " and " eye closing " movement respectively.Quilt Skin of face image under " eye opening " state of test object can provide more face characteristics for people's face face recognition, so as to The data information of detected object is filed and be managed according to face face recognition.Using " eye closing " of detected object State carries out the skin of face image taking under different illumination, not only can protect the eyes of detected object not by the thorn of light source Swash and injure, and remain the skin information in facial upper eyelid in the picture, is provided for the facial skin quality analysis of subsequent progress More sufficiently complete face data.

On the basis of the above embodiments, described device further includes network unit and sound wave receiving unit, wherein network list Member is attached and interacts for realizing with the Cloud Server of distal end, and acoustic receiver unit is used for real by external intelligent terminal The now binding to the initiation parameter configuration of network unit and with Cloud Server；Network unit and sound wave receiving unit respectively with Control unit connection.

In the present embodiment, it is also respectively provided with network unit and sound wave receiving unit, is connect respectively with control unit.? It under the control of control unit, can be attached with the Cloud Server of distal end by network unit, transmit and obtain to Cloud Server Skin of face image, and receive the data such as quantizating index of the image acquisition instruction for carrying out Cloud Server and skin quality analysis result； Intelligent terminal can be made to carry out radio local network parameter configuration and institute to network unit by sound wave by acoustic receiver unit Device is stated in the binding of Cloud Server.

Control unit stores unique described device and not modifiable identification ID and under the administrator right of device Revisable condition code.By establishing the administrator of described device and the binding relationship of ID on Cloud Server, intelligence is realized Energy terminal passes through Cloud Server control of which；The skin of face image got is encrypted by using condition code, it is real The personal secrets of data on existing Cloud Server.

Specifically, network unit is it is preferable to use USR-C215UART-WiFi module, the module be integrated on hardware MAC, Baseband chip, radio-frequency receiving-transmitting and power amplifier support WiFi agreement and ICP/IP protocol.Network unit is to pass through UART It is connect with control unit, the two-way transparent forwarding of realization serial ports to WiFi data packet.Network unit is configured to one wirelessly Website works in HTTP Client mode, and configures HTTP server address and port to the address and end of Cloud Server Mouthful.Described device penetrates the WLAN at place, is linked into internet, and establish connection with Cloud Server.Number is sent every time According to when, transmitted data can be packaged into http data automatically by network unit, be sent on specified HTTP server.And The data received from Cloud Server are transmitted directly to control unit by UART after network unit solution package, by control unit Then parsing executes.

Acoustic receiver unit is by audio receiving unit, pre-filtering, signal amplification, secondary filtering, analog-to-digital conversion and use It is formed in digital signal decoding and demodulation process software.The intelligent terminal being in same WLAN with described device passes through Sound wave carries out the configuration of WLAN initiation parameter, the administrator of described device and the ID of network unit in Cloud Server On binding etc., the man-machine interaction units such as display and keyboard are omitted on device hardware, so that device is compact and easily operated.

On the basis of the above embodiments, described device further includes that voice alerting unit, status display unit and bluetooth are logical Unit is interrogated, wherein voice alerting unit is used to carry out voice prompting, state to detected object in face-image acquisition process Display unit for showing current working condition, bluetooth communication unit for realizing being attached with external cosmetic apparatus and Interaction；Voice alerting unit, status display unit and bluetooth communication unit are connect with control unit respectively.

In the present embodiment, some auxiliary units are also respectively provided with, mainly include voice alerting unit, status display unit With bluetooth communication unit, it is connect with control unit.

Specifically, voice alerting unit can carry out voice prompting to detected object in face-image acquisition process, Detected object is such as prompted to carry out " eye opening " or " eye closing " operation；Status display unit is made of several LED, Ke Yixian The current working condition of showing device；Bluetooth communication unit, which is realized, to be attached and interacts with external cosmetic apparatus, can be incited somebody to action The quantizating index data transmission of the received skin of face skin quality analysis result of Cloud Server sets up bluetooth company to described device The cosmetic apparatus connect, the cosmetic apparatus will make inferences decision according to These parameters data, generate the beauty for being directed to the skin quality index Hold therapeutic scheme and parameter.

It should be noted that the voice alerting unit, status display unit and bluetooth communication unit in the present embodiment are adopted It is realized with prior art, details are not described herein.

Referring to shown in Fig. 6, the embodiment of the present invention provides a kind of multispectral skin of face image-taking system, the system packet Cloud Server, at least one intelligent terminal and the multispectral skin of face image as described in any one of above-described embodiment is included to obtain Take device；Wherein, Cloud Server is connect with intelligent terminal and multispectral skin of face image acquiring device respectively.

In the present embodiment, multispectral skin of face image acquiring device described in above-described embodiment is a kind of Intelligent hardware, Therefore after above-mentioned apparatus only being accessed internet and establishing connection with Cloud Server, just remote controlled and completion is to detected Automatic continuous acquisition of the subjects face skin under different illumination conditions.Wherein, in multispectral skin of face image acquiring device Control unit, be also used to by image acquisition unit obtain detected object skin of face image encrypted, compressed after lead to It crosses network unit and is sent to Cloud Server.

In order to realize that intelligent terminal is controlled it by Cloud Server, need to establish intelligent terminal on Cloud Server The binding relationship of administrator and multispectral skin of face image acquiring device are multispectral facial skin in the present embodiment thus Skin image acquiring device generates unique and not modifiable identification ID, and in multispectral skin of face image acquiring device It is permanently stored in control unit, while multispectral skin of face image acquiring device is printed on by the two dimensional code that the ID is generated On shell.Further, the present embodiment be also multispectral skin of face image acquiring device generate one can be by described device pipe The condition code of reason person's change, and interim storage in a control unit.Multispectral skin of face image acquiring device is by using spy Sign code encrypts image, realizes the personal secrets of data on Cloud Server.

With intelligent terminal of the multispectral skin of face image acquiring device in same WLAN by sound wave to institute The network unit for stating device carries out WLAN initiation parameter with postponing, and multispectral skin of face image acquiring device passes through Network unit is linked into internet, and establishes connection with Cloud Server.

Specifically, the intelligent terminal with multispectral skin of face image acquiring device in same WLAN, passes through The process that sound wave carries out initiation parameter configuration to the network unit of described device is as follows:

(1) administrator of multispectral skin of face image acquiring device downloads installation phase from Cloud Server using intelligent terminal Answer software；

(2) install software after connection Cloud Server registered, according to the login mechanism of Cloud Server input user name and Password；After Cloud Server receives the registration information of user, as the potential of multispectral skin of face image acquiring device Administrator saves；

(3) intelligent terminal scans the two dimensional code being printed on the shell of multispectral skin of face image acquiring device, or straight Meet input described device identification ID；

(4) the WiFi password of WLAN is inputted on intelligent terminal, intelligent terminal is by multispectral skin of face image Identification ID, user name, password, wireless network name and the password of acquisition device are modulated into sound wave, by loudspeaker to sky Between issue sound wave；

(5) the acoustic receiver unit of multispectral skin of face image acquiring device receives sound wave and resolves to digital coding, If the identification ID received is consistent with described device, the received wireless network name of institute and password are allocated to network Unit；

(6) multispectral skin of face image acquiring device accesses WLAN, and establishes connection with Cloud Server, will connect Skin of face image acquiring device identification ID, user name, the password received is sent to Cloud Server；

(7) after Cloud Server receives information above, the ID for checking that facial skin image obtains whether there is in suspend mode In ID database；If so, the ID is become state of activation from dormant state, and by its with upload together user name, password It is bound, while it is whole to multispectral skin of face image acquiring device and intelligence to return to " network and apparatus bound is successful " message End.

By above step, the intelligent terminal in WLAN or mobile network can be by Cloud Server to The multispectral skin of face image acquiring device for connecting the Cloud Server carries out remote control.

Specifically, the specific works content of each component is as follows in this system:

Multispectral skin of face image acquiring device receives the request and image acquisition instruction of Cloud Server, carries out detected Subjects face skin continuously acquiring under different illumination conditions, and the image that will acquire sends Cloud Server to；While from Cloud Server receives the quantizating index data in skin quality analysis result, and transfers data to the beauty that bluetooth connection is carried out with it Device.

Intelligent terminal provides a friendly human-computer interaction interface by software thereon for registration user, registration here User includes the administrator of multispectral skin of face image acquiring device and detected object described in the embodiment of the present invention.Its In, administrator issues multispectral skin of face image described in the embodiment of the present invention to Cloud Server by intelligent terminal and obtains dress The request set and image acquisition instruction receive and check facial skin acquired in the described device that sends by Cloud Server The skin quality that skin image and Cloud Server are formed according to image analyzes result.Detected object uses the allocated permission of administrator, Personal history detection information is browsed on Cloud Server.Preferably, intelligent terminal is smart phone, palm PC, notebook Or any one in tablet computer.

Cloud Server sends image acquisition to multispectral skin of face image acquiring device described in the embodiment of the present invention and asks Ask, receive request it is ready after, send image obtain order；The multispectral skin of face image acquiring device is received simultaneously The continuous face-image obtained.Using face recognition technology, file detected object detection information, while using at a variety of images Adjustment method carries out skin quality analysis to skin of face, calculates the quantizating index of skin quality, and quantizating index is sent back to described multispectral In skin of face image acquiring device.

In order to enable those skilled in the art to better understand the solution of the present invention, what the embodiment of the present invention will be further explained is more The workflow of spectrum skin of face image-taking system.It should be noted that in whole work process, the multispectral face Portion's skin image acquisition device has passed through wireless local area network accessing Internet and has established connection with Cloud Server.Specific work process It is as follows:

(1) intelligent terminal issues image capturing request to multispectral skin of face image acquiring device by Cloud Server, " request/ready " display lamp on multispectral skin of face image acquiring device shows " request "；

(2) it in multispectral skin of face image acquiring device, according to detected object face size, adjusts and is located at limit list Regulating device on second limiting section of member, detected object forehead withstand the first limiting section of position-limiting unit, and chin is placed in limit On second limiting section of bit location；Above-mentioned movement connects the microswitch being installed on the first limiting section and the second limiting section, After control unit detects the signal, cloud service is sent for the signal of " detected object is ready " by network unit Device, " request/ready " display lamp shows " ready " simultaneously；

(3) Cloud Server issues the instruction of " image, which obtains starting, to be allowed " to intelligent terminal, " the figure of software on intelligent terminal Picture acquisition " key is converted to be highlighted, allows to operate the key；

(4) " image acquisition " key of software on intelligent terminal is pressed, intelligent terminal is issued to Cloud Server " to be started continuous The instruction of acquisition image ", Cloud Server forward the instruction to multispectral skin of face image acquiring device；

(5) after multispectral skin of face image acquiring device receives above-metioned instruction, voice alerting unit sending " please be opened Eyes prepare recognition of face image taking " voice prompting, control unit is by the third circular hole in filter switch unit on disk It is directed at the camera lens front end of image acquisition unit, lighting unit lights standard white light light source in a manner of blood-shot eye illness to eliminate, and image obtains single Skin of face image under the standard white light illumination condition of camera shooting detected object " eye opening " state of member；

(6) then, the voice that voice alerting unit issues " please close eyes, prepare skin of face image and be continuously shot " mentions Show, keep the camera lens front end of third circular hole alignment image acquisition unit on disk in filter switch unit, lighting unit lights mark Quasi- white light source, the camera of image acquisition unit shoot the face under the standard white light illumination condition of detected object " eye closing " state Portion's skin image；

(7) the camera lens front end of third circular hole alignment image acquisition unit on disk in filter switch unit is kept, illumination is single Member lights UVA ultraviolet source, the UVA UV Light item of camera shooting detected object " eye closing " state of image acquisition unit Skin of face image under part；

(8) the camera lens front end of third circular hole alignment image acquisition unit on disk in filter switch unit is kept, illumination is single Member lights 940nm infrared light supply, the 940nm infrared light light of camera shooting detected object " eye closing " state of image acquisition unit Skin of face image according under the conditions of；

(9) the camera lens front end of third circular hole alignment image acquisition unit on disk in filter switch unit is kept, illumination is single Member lights 465nm indigo plant outer light source, the 465nm blue light illumination of camera shooting detected object " eye closing " state of image acquisition unit Under the conditions of skin of face image；

(10) control unit by filter switch unit on disk the second circular hole alignment image acquisition unit camera lens front end, Lighting unit lights the second polarizing light source, and the second of camera shooting detected object " eye closing " state of image acquisition unit is partially The skin of face image to shake under light illumination condition；

(11) control module by filter switch unit on disk the first circular hole alignment image acquisition unit camera lens front end, Lighting unit lights the first polarizing light source, and the first of camera shooting detected object " eye closing " state of image acquisition unit is partially The skin of face image to shake under light illumination condition；

(12) voice alerting unit issues the voice prompting of " skin of face image is continuously shot completion ", and control unit uses Condition code encrypts above-mentioned temporary image, is compressed, and is sent on Cloud Server by network unit；

(13) multispectral skin of face image acquiring device receives the skin of face from Cloud Server by network unit Skin quality analyzes the quantizating index data of result, and these data transmissions are established to multispectral skin of face image acquiring device In the cosmetic apparatus for playing bluetooth connection；

(14) the detected object skin of face image and skin quality point on Cloud Server are browsed on the software of intelligent terminal Analyse result.

A kind of multispectral skin of face image acquiring device provided in an embodiment of the present invention is obtained single by setting image Member, lighting unit and filter switch unit, and can be in unified colour temperature, the depth of field, light source under the control and coordination of control unit Position, exposure parameter, shooting background and detected object face position standardization shooting condition and environment under, complete to tested It surveys skin of face image of the subjects face skin under a variety of illumination conditions including polarised light automatically continuously to obtain, not only So that the skin quality analysis result accuracy that obtains according to these images and to repeat consistency preferable, and can reflect comprehensively tested The skin quality situation for surveying subjects face skin, is particularly in the skin quality feature of skin base layer.

In addition, not only realizing intelligence by further establishing connection with Cloud Server and intelligent terminal and interacting Terminal also achieves skin of face image in remote analysis of the Cloud Server based on big data and returns to the remote operation of the device Shelves processing, the skin quality judge quantizating index to form unified later provide good basis.

In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment The part of detailed description, reference can be made to the related descriptions of other embodiments.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (11)

1. a kind of multispectral skin of face image acquiring device, which is characterized in that described device includes:

Image acquisition unit, for obtaining detected object skin of face image；

Lighting unit, for providing at least one illumination condition including polarised light to described image acquiring unit；

Filter switch unit is arranged between described image acquiring unit and the lighting unit, in the lighting unit When polarised light illumination condition is provided, only make diffusing into described image acquiring unit for detected object skin of face； And when the lighting unit provides other illumination conditions, so that all reflected lights of detected object skin of face is entered the figure As in acquiring unit；

Control unit, for controlling described image acquiring unit, the lighting unit and the filter switch unit to realize The automatic continuous acquisition of detected object skin of face image under different illumination conditions.

2. the apparatus according to claim 1, which is characterized in that the lighting unit includes hemispherical reflector and sheen Cover, the soft light cover are arranged on the inside of the reflector, and the bottom position of the soft light cover and the reflector is coaxially provided with Unthreaded hole；Cricoid standard white light light source and 465nm blue light source, the sheen are equipped between the reflector and the soft light cover The same even circumferential of lateral edge is provided with 940nm infrared light light source, the first polarizing light source, UVA ultraviolet source and the in covering Two polarizing light sources, wherein the polarization direction phase of the polarization direction of first polarizing light source and the second polarizing light source It is mutually vertical.

3. the apparatus of claim 2, which is characterized in that the lighting unit further includes light source controller, the light Source controller respectively with the standard white light light source, the 465nm blue light source, the 940nm infrared light light source, described first Polarizing light source, the UVA ultraviolet source are connected with second polarizing light source, the light source controller also with the control Unit connection processed.

4. the apparatus of claim 2, which is characterized in that the 940nm infrared light light source, the first polarised light light Source, the UVA ultraviolet source and second polarizing light source are respectively arranged with two, wherein same category of light source phase To setting.

5. the apparatus of claim 2, which is characterized in that the filter switch unit includes rotatable circular disc, is set Set the bottom side in the reflector；The first circular hole, the second circular hole and third circular hole are respectively arranged on the disk, it is described The center of circle of first circular hole, second circular hole and the third circular hole is located on same circumference, and the energy in the disc rotary It is respectively aligned to the loophole enough to make respective ray of light enter in described image acquiring unit；

First circular hole is equipped with the first analyzer, and second circular hole is equipped with the second analyzer, wherein first inspection The polarization direction of polariscope and the polarization direction of first polarizing light source are mutually perpendicular to, the polarization of second analyzer Change direction and the polarization direction of second polarizing light source is mutually perpendicular to.

6. device according to claim 5, which is characterized in that the disk is by stepper motor driving and straight where the center of circle Line rotation, the stepper motor are connected with motor driver, and the motor driver is also connect with described control unit.

7. device according to claim 6, which is characterized in that at least one magnetic stripe is additionally provided on the disk, it is described Magnetic stripe is arranged at the different location of the disk；When the disc rotary, pass through magnetic stripe described in double track magnetism-head detection and control The rotational angle of the stepper motor is made, be respectively aligned to first circular hole, second circular hole and the third circular hole The loophole is to make respective ray of light enter in described image acquiring unit, wherein the double track magnetic head is also single with the control Member connection.

8. the apparatus according to claim 1, which is characterized in that described device further includes position-limiting unit, for detected Subjects face position is defined；

The position-limiting unit is including the first limiting section, the second limiting section and for adjusting first limiting section and described second The regulating device of distance between limiting section, wherein it is equipped with microswitch on first limiting section and second limiting section, The microswitch is also connect with described control unit.

9. the apparatus according to claim 1, which is characterized in that described device further includes network unit and acoustic receiver list Member, wherein the network unit is attached and interacts for realizing with the Cloud Server of distal end, the acoustic receiver unit is used In the binding by external intelligent terminal realization to the initiation parameter configuration of the network unit and with Cloud Server；Institute It states network unit and the acoustic receiver unit is connect with described control unit respectively.

10. the apparatus according to claim 1, which is characterized in that described device further includes voice alerting unit, status display Unit and bluetooth communication unit, wherein the voice alerting unit be used in face-image acquisition process to detected object into Row voice prompting, the status display unit for showing current working condition, the bluetooth communication unit for realizing with External cosmetic apparatus is attached and interacts；The voice alerting unit, the status display unit and the bluetooth communication Unit is connect with described control unit respectively.

11. a kind of multispectral skin of face image-taking system, which is characterized in that the system comprises Cloud Server, at least one A intelligent terminal and such as above-mentioned multispectral skin of face image acquiring device according to any one of claims 1 to 10；Its In, the Cloud Server is connect with the intelligent terminal and the multispectral skin of face image acquiring device respectively.