CN106663201A - A palm detection method and apparatus - Google Patents

Abstract

The embodiment of the present invention discloses a palm detection method and apparatus for accurately and efficiently judging a living body palm. The method of the embodiment of the invention is applied to a palm detection device, which comprises obtaining a first image of the palm to be detected by the image acquisition device in a first light source working mode; acquiring, in a second light source working mode, a second image of the to-be-detected palm; determining whether the palm is a living palm based on the first image and the second image; wherein the light source used by the first light source working mode and the light source used by the second light source working mode comprise different light bands. In this way, by alternately using the light source working modes comprising the different wave bands, the palm detection device obtains the different images of the to-be-detected palm by the image acquisition device respectively, and analyzes the different images to find out whether the palm of the hand is a living palm, so that the identification of living palms can be achieved simply and efficiently.

Description

A kind of palm detection method and equipment

Technical field

The present invention relates to biological characteristic anti-counterfeit field, more particularly to a kind of palm detection method and equipment.

Background technology

Because palm has biological information, such as vena metacarpea information and palmprint information, using these biologies on palm Characteristic information can carry out identification to user.

Biological characteristic on palm can be forged, for example, be using the image forge including vena metacarpea and palmprint information Live body palm, now, hand identification equipment probably due to can not judge that the image is not live body palm, so as to the palm for carrying out Identification is identified by, and this can produce security risk.

In prior art, before the identification of palm information, judge whether it is that the method for live body palm is typically according to building in advance Whether vertical live body palm statistical rules, the palm image got by Algorithm Analysis is obtained according to live body palm.But It is so often because of the complex effects judging efficiency of algorithm, and accuracy rate is not also high.

The content of the invention

A kind of palm detection method and equipment are embodiments provided, for accurately and efficiently judging live body hand The palm.

In order to solve above-mentioned technical problem, technical scheme below is embodiments provided：

A kind of palm detection method, methods described is applied to palm testing equipment, and methods described includes：

In the first light source works pattern, the first image of palm to be detected is obtained by image collecting device；

In secondary light source mode of operation, the second figure of the palm to be detected is obtained by described image harvester Picture；

According to described first image and second image, judge whether the palm to be detected is live body palm；

Wherein, the light source bag that the light source and the secondary light source mode of operation that the first light source works pattern is used is used Include different optical bands.

In order to solve above-mentioned technical problem, the embodiment of the present invention additionally provides technical scheme below：

A kind of palm testing equipment, the palm testing equipment includes image collecting device, the palm testing equipment bag Include：

Image acquisition unit, in the first light source works pattern, by image collecting device palm to be detected being obtained The first image；

Image acquisition unit, is additionally operable to, in secondary light source mode of operation, obtain described by described image harvester Second image of palm to be detected；

Judging unit, for according to described first image and second image, judging that whether the palm to be detected be Live body palm；

Wherein, the light source bag that the light source and the secondary light source mode of operation that the first light source works pattern is used is used Different optical bands are included,

Live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, institute State palm testing equipment and the different palm characteristic information of live body palm, non-living body palm are got by described image harvester Respectively under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, the palm testing equipment leads to Cross described image harvester and get non-living body palm identical palm characteristic information.

In technical scheme provided in an embodiment of the present invention, on palm testing equipment, in the first light source works pattern, lead to Cross the first image that image collecting device obtains palm to be detected；In secondary light source mode of operation, by image collecting device Obtain the second image of palm to be detected；Then, according to the first image and the second image, judge whether palm to be detected is live body Palm.The light source that the light source and secondary light source mode of operation that first light source works pattern is used is used includes different optical bands, Because of the difference of glistening light of waves section, cause live body palm respectively in the light source and the light of secondary light source mode of operation of the first light source works pattern Under the irradiation of source, palm testing equipment gets the different image information of live body palm.So, by being used alternatingly including different ripples The light source works pattern of light section, palm testing equipment obtains respectively the different images of palm to be detected by image collecting device, The different images are analyzed, you can show whether palm to be detected is live body palm, so as to simple and efficiently realize The differentiation of live body palm.

Description of the drawings

The use schematic diagram of a scenario involved by a kind of palm detection method that Fig. 1 is provided for one embodiment of the invention；

Fig. 2 is the schematic diagram of another angle shown in Fig. 1 using schematic diagram of a scenario；

Fig. 3 is the palmprint image got by image collecting device using the palm testing equipment in scene shown in Fig. 1 Schematic diagram；

Fig. 4 is the vena metacarpea figure got by image collecting device using the palm testing equipment in scene shown in Fig. 1 The schematic diagram of picture；

Fig. 5 is the palmmprint and the palm got by image collecting device using the palm testing equipment in scene shown in Fig. 1 The schematic diagram of vein image；

Fig. 6 is the spectral pattern schematic diagram of the optical filter shown in Fig. 1 using the palm testing equipment in scene；

A kind of flow chart of palm detection method that Fig. 7 is provided for another embodiment of the present invention；

A kind of flow chart of palm detection method that Fig. 8 is provided for another embodiment of the present invention；

A kind of structural representation of palm testing equipment that Fig. 9 is provided for another embodiment of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on Embodiment in the present invention, the every other enforcement that those skilled in the art are obtained under the premise of creative work is not made Example, belongs to the scope of protection of the invention.

Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing, " Four " etc. (if present) is the object for distinguishing similar, without for describing specific order or precedence.Should manage The data that solution is so used can be exchanged in the appropriate case, so that the embodiments described herein can be with except illustrating here Or the order beyond the content of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that Covering is non-exclusive to be included, and for example, containing process, method, system, product or the equipment of series of steps or unit need not limit In those steps or unit for clearly listing, but may include clearly not list or for these processes, method, product Other intrinsic steps of product or equipment or unit.

A kind of palm detection method and equipment are embodiments provided, for accurately and efficiently judging live body hand The palm.

Fig. 1 and Fig. 2 are the use schematic diagram of a scenario involved by a kind of palm detection method provided in an embodiment of the present invention.Its In, Fig. 1 is side view, and Fig. 2 is the top view of the use scene shown in Fig. 1.Referring to Fig. 1 and Fig. 2, this includes palm using scene Testing equipment 101 and palm 102.The palm testing equipment can detect whether the palm is live body palm, in the embodiment having, The palm testing equipment can also include other functions, for example, the palm characteristic information of palm is identified.Wherein, palm Characteristic information includes palmprint information and vena metacarpea information etc..

Existing hand identification equipment is simply simply identified to palm characteristic information, but palm characteristic information can Can be forged by illegal user, so as to illegal user can use the palm characteristic information forged to successfully pass hand identification equipment Identification.This generates potential safety hazard.Generally, the mode for forging palm characteristic information can be that palm feature letter is printed on paper Breath, the photo for shooting palm characteristic information, manufacture palm model etc..To the palm characteristic information that these are forged, existing palm It is to forge that identification equipment inspection is not measured, consequently, it is possible to identified pass through.

For example, as shown in Fig. 3, Fig. 4, Fig. 5, the schematic diagram of the palmprint image that Fig. 3 gets for image collecting device, Fig. 4 The schematic diagram of the vena metacarpea image got for image collecting device, the palmmprint and the palm that Fig. 5 gets for image collecting device is quiet The schematic diagram of arteries and veins image.Wherein palmprint image includes palmprint information, and vena metacarpea image includes vena metacarpea information, palmmprint and vena metacarpea Image includes palmprint information and vena metacarpea information.Palmprint information and vena metacarpea information are different palm characteristic informations.It is to be detected Palm is either forged or live body, can cause image collecting device to get palm feature as shown in Figures 3 to 5 Frame, these palm characteristic information images can be used for carrying out the identification of palm characteristic information in hand identification equipment, And may be identified by.

But, under light source irradiation, the spectrum of the light that light source sends is different, i.e., light source uses different light waves for live body palm Duan Shi, because the light of different-waveband is different to the reflection case of live body palm, by image collecting device the live body hand can be collected The different palm characteristic information of the palm.And the palm characteristic information forged then will not so do, non-living body palm is in different spectrum Under irradiation, the palm characteristic information of the non-living body palm that image collecting device gets does not change.

Whether the palm testing equipment of the embodiment of the present invention make use of principles above, being live body to palm to be detected Palm is detected.In the embodiment having, if the palm testing equipment is additionally provided with palm feature recognition function, can be in detection It is the palm characteristic information that the palm to be detected is gathered after live body palm to go out palm to be detected, to carry out palm characteristic information Identification.The detection for being live body palm is first made whether to palm to be detected, the palm characteristic information of forgery can be picked out, so as to carry The accuracy rate of high follow-up palm characteristic information identification.

As shown in figure 1, the palm testing equipment includes the first light source 103, secondary light source 104, image collecting device 105. In the embodiment having, the image collecting device 105 of the palm testing equipment includes camera lens 106 and optical filter 107, and the camera lens can Image information is obtained by the optical filter.

The light that first light source 103 and secondary light source 104 send includes different optical bands, irradiates in different optical bands Under, the palm characteristic information of the live body palm that palm testing equipment is got by image collecting device is different, non-living body palm Under different optical band irradiations, the palm feature of the non-living body palm that palm testing equipment is got by image collecting device Information is identical.

For example, the light that the first light source sends is blue wave band, when the light that secondary light source sends is near infrared light wave band, live body Palm under the irradiation of the light source of blue wave band, the figure of the live body palm that palm testing equipment is got by image collecting device Vena metacarpea information is not included as including palmprint information, such as palmprint image as shown in Figure 3.Live body palm is in near-infrared light waves Under the irradiation of the light source of section, the image of the live body palm that palm testing equipment is got by image collecting device includes vena metacarpea Information and include palmprint information, for example, vena metacarpea image as shown in Figure 4.Live body palm is in blue wave band and near infrared light Under irradiating while the light source of wave band, the image of the live body palm that palm testing equipment is got by image collecting device includes Vena metacarpea information and palmprint information, such as vena metacarpea as shown in Figure 5 and palmprint image.These vena metacarpea information and palmprint information Belong to different palm characteristic informations.

If palm to be detected is the palm of non-living body, the light source irradiation of ineffective what optical band, image collector The identical palm characteristic information for all getting non-living body palm is put, i.e., what palm characteristic information is included on non-living body palm, Under the light source irradiation of different glistening light of waves sections, what image collecting device got is the palm characteristic information of non-living body palm.

The work that palm testing equipment passes through controllable first light source of circuit control device thereon and secondary light source, so as to Different light source works patterns are produced, for example, is irradiated using the first light source and is not used secondary light source, uses secondary light source to irradiate And do not use the first light source, while use the first light source and secondary light source irradiation etc. this several light source works pattern.Because different The light source that light source works pattern is used includes different optical bands, and live body palm shines in the optical band of different light source works patterns Penetrate down, the palm characteristic information of the live body palm that palm testing equipment is got by image collecting device is different, non-living body hand Slap under the optical band irradiation of different light source works patterns, the non-live that palm testing equipment is got by image collecting device The palm characteristic information of body palm is identical.

On palm testing equipment, in the first light source works pattern, palm to be detected is obtained by image collecting device The first image；In secondary light source mode of operation, the second image of palm to be detected is obtained by image collecting device；So Afterwards, according to the first image and the second image, judge whether palm to be detected is live body palm.What the first light source works pattern was used The light source that light source and secondary light source mode of operation are used includes different optical bands, the first light source works pattern and secondary light source work Operation mode can be one of light source works pattern as above.Because of the difference of glistening light of waves section, cause live body palm respectively in the first light source work Under the light source of operation mode and the light source irradiation of secondary light source mode of operation, palm testing equipment is got by image collecting device The different palm characteristic information of live body palm, non-living body palm is respectively in the light source and secondary light source work of the first light source works pattern Under the light source irradiation of operation mode, palm testing equipment gets non-living body palm identical palm feature by image collecting device Information.So, by the way that the light source works pattern including different glistening light of waves sections is used alternatingly, palm testing equipment passes through image collector The different images for obtaining palm to be detected respectively are put, the different images are analyzed, you can show that whether palm to be detected is Live body palm, so as to differentiation that is simple and efficiently realizing live body palm.

In the embodiment having, the optical filter that image collecting device includes can pass through the optical band and the second light of the first light source The optical band in source.For example, the optical filter is the optical filter using segmentation plated film design of new processes, can make two different-wavebands Light transmission.For example, optical filter can make the optical band that the first light source of palm testing equipment sends and the light that secondary light source sends Wave band is passed through.Because the optical filter is that can arrange in pairs or groups the exposure parameter for regulating through special process process, ensureing first/ When secondary light source is started working, image acquiring sensor can collect clearly image.

For example, the light that the first light source sends is the blue-ray LED of blue wave band, and blue wave band can be the wave band near 470nm, The light that secondary light source sends is the near-infrared LED of near infrared light wave band, and near infrared light wave band can be the wave band near 850nm.Phase Ying Di, optical filter can pass through near infrared light wave band and blue wave band, and the spectral pattern of the optical filter is as shown in Figure 6.By Fig. 6 Understand, the optical filter of the employing segmentation plated film design of new processes can make the light transmission of two different-wavebands, and the two are different The centre wavelength of the light of wave band is respectively 470nm and 850nm.

In the embodiment having, the palm testing equipment can also include indicator lamp 108, and in palm testing equipment hand is detected During the palm, if the palm or detected object are not in suitable position, palm testing equipment is caused to pass through image collecting device When obtaining less than image to be detected, palm detection means sends instruction by the indicator lamp 108.

It is to ensure image uniform that palm testing equipment obtained by image collecting device clearly in the embodiment having, According to predetermined manner first light source and secondary light source can be laid out on palm testing equipment.For example, first light source Can arrange around image collecting device respectively with secondary light source.As shown in Fig. 2 using circular layout rule respectively to blue light LED and near-infrared LED are laid out on palm testing equipment, and blue-ray LED and near-infrared LED constitute concentric circles, IMAQ Device is located at blue-ray LED and the inside of the concentric circles of near-infrared LED.So as to lamp ring of the palm testing equipment in the first light source irradiates Under, clearly palmprint image can be obtained, and under the lamp ring irradiation of secondary light source, clearly vena metacarpea image can be obtained

In the embodiment having, palm testing equipment may include two different image collecting devices, an IMAQ Device is corresponding with a light source, when the light source irradiates palm to be detected, obtains image；Another image collecting device is used for another When light source irradiates palm to be detected, image is obtained.

In the embodiment having, the camera lens of image collecting device can use two optical filters, such as ir-cut, coordinate Double optical-filter switchers just can change infrared fileter and full impregnated spectrum filter under different light source works patterns.

Fig. 7 is a kind of flow chart of the palm detection method according to an exemplary embodiment.Reality with reference to shown in Fig. 1 Environment schematic and the above are applied, the method is applied on palm testing equipment, the present invention is performed with palm testing equipment real As a example by the angle of the method for applying example offer, referring to Fig. 7, method flow provided in an embodiment of the present invention includes：

Step 701：In the first light source works pattern, the first figure of palm to be detected is obtained by image collecting device Picture；

Step 702：In secondary light source mode of operation, the second figure of palm to be detected is obtained by image collecting device Picture；

Step 703：According to the first image and the second image, judge whether palm to be detected is live body palm；

Wherein, the light source that the light source and secondary light source mode of operation that the first light source works pattern is used is used includes different Optical band,

Alternatively,

Live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, hand Palm testing equipment gets the different palm characteristic information of live body palm by image collecting device, and non-living body palm is respectively the Under the light source of one light source works pattern and the light source irradiation of secondary light source mode of operation, palm testing equipment passes through image collector Put and get non-living body palm identical palm characteristic information.

Alternatively,

First light source works pattern is to be irradiated using the first light source and do not use the secondary light source, secondary light source mode of operation to be Irradiated using secondary light source and do not use the first light source, wherein, the light that the optical band and secondary light source that the first light source sends sends Wave band is different,

According to the first image and the second image, judge whether palm to be detected is live body palm, including：

Do not include second feature information when the first image includes fisrt feature information, and the second image includes second feature Information and not include fisrt feature information when, determine palm to be detected be live body palm；

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm,

When being irradiated using secondary light source and not using the first light source, palm testing equipment can be obtained by image collecting device Get the second feature information of live body palm, and obtain the fisrt feature information less than live body palm, fisrt feature information and the Two characteristic informations are different palm characteristic informations.

Alternatively,

First light source works pattern is to be irradiated using the first light source and do not use the secondary light source, secondary light source mode of operation to be Irradiated using the first light source and secondary light source simultaneously, wherein, the light wave that the optical band and secondary light source that the first light source sends sends Duan Butong,

According to the first image and the second image, judge whether palm to be detected is live body palm, including：

Do not include second feature information when the first image includes fisrt feature information, and the second image includes second feature When information and fisrt feature information, determine that palm to be detected is live body palm,

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm；

When being irradiated using the first light source and secondary light source at the same time, palm testing equipment can be obtained by image collecting device To the fisrt feature information and second feature information of live body palm, fisrt feature information and second feature information are different palms Characteristic information.

Alternatively,

According to the first image and the second image, judge whether palm to be detected is live body palm, including：

The first image and the second image are contrasted, matching degree is obtained, matching degree is used to representing the first image and the second image Similarity degree；

Judge matching degree whether less than pre-set threshold value；

If matching degree is less than pre-set threshold value, it is determined that palm to be detected is live body palm, otherwise determines that palm to be detected is Non-living body palm.

Alternatively,

Light source works pattern include using the first light source irradiate and do not use secondary light source, use secondary light source irradiate and not Using the first light source, while using the first light source and secondary light source irradiation, the first light source works pattern and secondary light source Working mould Formula belongs to one of light source works pattern, and the first light source works pattern is different from secondary light source mode of operation.

Alternatively, light source includes sending the light source of blue wave band and sends the light source of near infrared light wave band, the first light source and Secondary light source belongs to one of light source,

Wherein, under the irradiation of the light source of blue wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm got includes palmprint information and does not include vena metacarpea information；

Under the irradiation of the light source of near infrared light wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm for arriving includes vena metacarpea information and does not include palmprint information；

Live body palm blue wave band light source and near infrared light wave band light source while irradiation under, palm testing equipment The image of the live body palm got by image collecting device includes vena metacarpea information and palmprint information；

Palmprint information and vena metacarpea information belong to different palm characteristic informations.

Alternatively, method also includes：

Judge position of the palm to be detected relative to palm testing equipment whether in image-acquisition area；

If palm to be detected relative to palm testing equipment position in image-acquisition area, perform in the first light source work Under operation mode, the first image of palm to be detected is obtained by image collecting device, and under secondary light source mode of operation, passed through The step of image collecting device obtains the second image of palm to be detected；

If palm to be detected relative to palm testing equipment position not in image-acquisition area, send information.

Alternatively,

Image collecting device includes optical filter, and optical filter can pass through the optical band of the first light source and the light wave of secondary light source Section.

In sum, on palm testing equipment, in the first light source works pattern, obtained by image collecting device and treated First image of detection palm；In secondary light source mode of operation, by image collecting device the second of palm to be detected is obtained Image；Then, according to the first image and the second image, judge whether palm to be detected is live body palm.First light source works mould The light source that the light source and secondary light source mode of operation that formula is used is used includes different optical bands, because of the difference of glistening light of waves section, causes Respectively under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, palm detection sets live body palm Standby to get the different palm characteristic information of live body palm by image collecting device, non-living body palm is respectively in the first light source work Under the light source of operation mode and the light source irradiation of secondary light source mode of operation, palm testing equipment gets the different figure of live body palm As information.So, by the way that the light source works pattern including different glistening light of waves sections is used alternatingly, palm testing equipment passes through IMAQ Device obtains respectively the different images of palm to be detected, and the different images are analyzed, you can whether draw palm to be detected It is live body palm, so as to differentiation that is simple and efficiently realizing live body palm.

Fig. 8 is a kind of flow chart of the palm detection method according to an exemplary embodiment.Reality with reference to shown in Fig. 1 Environment schematic and the above are applied, the method is applied on palm testing equipment, the present invention is performed with palm testing equipment real As a example by the angle of the method for applying example offer, referring to Fig. 8, method flow provided in an embodiment of the present invention includes：

Step 801：Judge position of the palm to be detected relative to palm testing equipment whether in image-acquisition area；If treating Detection palm relative to palm testing equipment position in image-acquisition area, then execution step 803 and step 804；

Palm testing equipment detect examined object positioned at the palm testing equipment image-acquisition area when, or When palm testing equipment opens live body palm detection work, palm testing equipment is carried out before image acquisition to the examined object Judgement.For example, palm testing equipment judges whether palm to be detected obtains relative to the position of palm testing equipment in image Region；If palm to be detected relative to palm testing equipment position in image-acquisition area, perform in the first light source works Under pattern, the first image of palm to be detected is obtained by image collecting device, and under secondary light source mode of operation, by figure The step of the second image of palm to be detected being obtained as harvester.If palm to be detected is relative to the position of palm testing equipment Not in image-acquisition area, then execution step 802.

Position of the palm to be detected relative to palm testing equipment is specifically detected whether in the mode of image-acquisition area, The embodiment of the present invention is not especially limited to this, for example, can be, palm testing equipment is visited by image analysis technology and distance Survey complex technique to judge the position of palm to be detected.

Wherein, the palm testing equipment to performing the embodiment of the present invention refers to above-mentioned use scene parts to palm detection The description of equipment.

Step 802：Send information.

Palm testing equipment judges position of the palm to be detected relative to palm testing equipment not in image-acquisition area When, palm testing equipment can not get the image beneficial to analysis of palm to be detected by image collecting device thereon, from And palm testing equipment issues the user with information.

Wherein, specifically sending the mode of information can be, carry out voice message, for example, issue the user with voice " ask for an interview palm be placed in image obtain in area ", or indicated by the indicator lamp that is arranged on palm testing equipment, for example, when treating Detection palm relative to palm testing equipment position not in image-acquisition area, open instruction flick of lamp.Obtain by setting The first light source and/or secondary light source on palm testing equipment are put, palm testing equipment can also send information, for example When palm to be detected relative to palm testing equipment position not in image-acquisition area when, the first light source and/or secondary light source Do not start work, when palm to be detected relative to palm testing equipment position in image-acquisition area when, the first light source and/or Secondary light source is started working.

It is appreciated that in the embodiment that the present invention has, step 802 can not be included, or step 801 and step are not included Rapid 802.

Step 803：In the first light source works pattern, the first figure of palm to be detected is obtained by image collecting device Picture；

Palm testing equipment obtains the first of palm to be detected in the first light source works pattern by image collecting device Image.

Step 804：In secondary light source mode of operation, the second figure of palm to be detected is obtained by image collecting device Picture；

Palm testing equipment obtains the second of palm to be detected in secondary light source mode of operation by image collecting device Image.

Wherein, the light source that the light source and secondary light source mode of operation that the first light source works pattern is used is used includes different Optical band, the first light source works pattern and secondary light source mode of operation belong to different light source works patterns.

With reference to above-mentioned use scene parts, the palm inspection testing equipment can be provided with multiple light sources, wherein different light sources are sent out The light for going out includes different optical bands, and the optical band of preferred difference light source is not overlapped.In an embodiment of the present invention, the palm Testing equipment can be provided with two light sources for sending Different lightwave section, i.e. palm testing equipment and be provided with the first light source and secondary light source, Wherein, the optical band that the first light source sends is different with the optical band that secondary light source sends.Palm testing equipment is by electricity thereon The switch of controllable first light source of road control module and secondary light source, so as to produce different light source works patterns, for example, uses First light source irradiate and do not use secondary light source, use secondary light source irradiate and do not use the first light source, while using the first light Source and secondary light source irradiate these three light source works patterns.First light source works pattern and secondary light source mode of operation belong to this One of several light source works patterns, and the first light source works pattern and secondary light source mode of operation are different light sources Mode of operation.

Palm testing equipment is used alternatingly different light source works patterns, to be irradiated to palm to be detected, palm inspection Measurement equipment obtains respectively the image of palm to be detected under different light source works patterns, to be made whether being live body palm Detection.By step 803 and step 804, that is, palm testing equipment is realized under different light source works patterns, obtain respectively The image of palm to be detected.

Wherein, the execution sequence embodiment of the present invention of step 803 and step 804 is not especially limited.

Step 805：According to the first image and the second image, judge whether palm to be detected is live body palm；

Palm testing equipment obtains the different image of palm to be detected under different light source works patterns.

Because live body palm irradiates respectively in the light source of the first light source works pattern and the light source of secondary light source mode of operation Under, palm testing equipment gets the different palm characteristic information of live body palm, non-living body palm point by image collecting device Not under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, palm testing equipment passes through image Harvester gets non-living body palm identical palm characteristic information.

So as to, palm testing equipment can judge whether palm to be detected is living according on the first image and the second image Body palm.

Wherein, according to the first image and the second image, judge that whether palm to be detected is the concrete grammar tool of live body palm Have various, the embodiment of the present invention is not specifically limited to this, two concrete grammars are enumerated below to illustrate：

First, the palm characteristic information of the image for obtaining is compared with preset palm characteristic information

Under different light source works patterns, palm testing equipment obtains respectively image, and palm testing equipment is advance Foundation has the corresponding relation of light source works pattern and palm characteristic information.Determined and light during acquisition image according to the corresponding relation The corresponding palm characteristic information of source mode of operation, then using the palm characteristic information and the palm characteristic information of image of the determination It is compared, judges whether the palm characteristic information for being same type, after so judging the first image and the second image, according to sentences Disconnected result can determine whether whether palm to be detected is live body palm.

Below, i.e., the first determination methods is described under specific light source works pattern.

1st, a kind of combination of different light source works patterns

First light source works pattern is that secondary light source is irradiated and do not used using the first light source,

Secondary light source mode of operation is that the first light source is irradiated and do not used using secondary light source,

Wherein, the optical band that the first light source sends is different with the optical band that secondary light source sends,

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm,

When being irradiated using secondary light source and not using the first light source, palm testing equipment can be obtained by image collecting device Get the second feature information of live body palm, and obtain the fisrt feature information less than live body palm, fisrt feature information and the Two characteristic informations are different palm characteristic informations.

So as to light source works pattern as shown in Table 1 and palm characteristic information can be pre-build on palm testing equipment Corresponding relation.

Table one：

If palm to be detected is non-living body palm, under the first and second light source works patterns, palm testing equipment is obtained Get same palm characteristic information.I.e. under the first and second light source works patterns, or all getting non-living body palm Fisrt feature information, and obtain the second feature information less than non-living body palm；All obtain less than non-living body palm One characteristic information, and get the second feature information of non-living body palm；All get the first of non-living body palm simultaneously Feature is believed and second feature information.

Palm testing equipment respectively under first, second light source works pattern, leads to when detecting to palm to be identified The image collecting device crossed thereon obtains first, second image of palm to be detected, such as above-mentioned step 803 and step 804.Its In, to step 803 and the execution sequence of step 804, the embodiment of the present invention is not especially limited, as long as can realize being used alternatingly not Same light source works pattern.Under the first light source works pattern, after obtaining the first image, palm testing equipment can determine whether the Whether include fisrt feature information on one image and do not include second feature information.

Specific image palm characteristic information determination methods, Ke Yishi：Palm testing equipment is according to the light source for pre-building The corresponding relation of mode of operation and palm characteristic information, it is determined that palm characteristic information corresponding with the first light source works pattern is bag Include fisrt feature information and do not include second feature information；Palm testing equipment is obtained after the first image, and the first image is carried out The identification of palm characteristic information, to determine which palm characteristic information the first image includes, is identified result.Then judge Whether the recognition result is to include fisrt feature information and do not include second feature information.

Similar, under secondary light source mode of operation, after obtaining the second image, palm testing equipment is judged on the second image Whether include second feature information and do not include fisrt feature information.

Specific determination methods are similar to the above-mentioned determination methods to the first image, and palm testing equipment is according to pre-building The corresponding relation of light source works pattern and palm characteristic information, it is determined that palm characteristic information corresponding with secondary light source mode of operation It is to include second feature information and do not include fisrt feature information；Palm testing equipment is obtained after the second image, to the second image The identification of palm characteristic information is carried out, to determine which palm characteristic information the second image includes, result is identified.Then Judge whether the recognition result is to include second feature information and do not include fisrt feature information.

Wherein, the embodiment of the present invention is to judging whether do not include second feature including fisrt feature information on the first image The step of information, and judge holding for the step of whether including second feature information on the second image and do not include fisrt feature information Row order is not especially limited.When the two judge step all to be, then judge that palm to be detected is live body palm.

That is, according to the first image and the second image, judge whether palm to be detected is live body palm, including：

Do not include second feature information when the first image includes fisrt feature information, and the second image includes second feature Information and not include fisrt feature information when, determine palm to be detected be live body palm.

2nd, another kind of combination of different light source works patterns

First light source works pattern is to be irradiated using the first light source and do not use the secondary light source, secondary light source mode of operation to be Irradiated using the first light source and secondary light source simultaneously,

Wherein, the optical band that the first light source sends is different with the optical band that secondary light source sends,

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm；

When being irradiated using the first light source and secondary light source at the same time, palm testing equipment can be obtained by image collecting device To the fisrt feature information and second feature information of live body palm, fisrt feature information and second feature information are different palms Characteristic information.

Can pre-build that light source works pattern as shown in Table 2 is right with palm characteristic information on palm testing equipment Should be related to.

Table two

If palm to be detected is non-living body palm, under the first and second light source works patterns, palm testing equipment is obtained Get same palm characteristic information.I.e. under the first and second light source works patterns, or all getting non-living body palm Fisrt feature information, and obtain the second feature information less than non-living body palm；All obtain less than non-living body palm One characteristic information, and get the second feature information of non-living body palm；All get the first of non-living body palm simultaneously Feature is believed and second feature information.

Similar above-mentioned determination methods, palm testing equipment can judge that the first image includes that first is special according to the corresponding relation Reference ceases and does not include second feature information, and, palm testing equipment can judge that the second image includes according to the corresponding relation Second feature information and fisrt feature information.Specific determination methods, refer to above-mentioned image palm characteristic information judgement side Method.

Wherein, the embodiment of the present invention does not include second feature information to judging the first image to include fisrt feature information Step, and judge that the execution sequence of the step of the second image includes second feature information and fisrt feature information does not make concrete limit It is fixed.When the two judge step all to be, then judge that palm to be detected is live body palm.

That is, according to the first image and the second image, judge whether palm to be detected is live body palm, including：

Do not include second feature information when the first image includes fisrt feature information, and the second image includes second feature When information and fisrt feature information, determine that palm to be detected is live body palm,

The concrete setting form of the first light source and secondary light source has various ways, hereafter i.e. with light source include send indigo plant The light source of optical band is described in detail with the light source for sending near infrared light wave band to the embodiment of the present invention.

When light source includes sending the light source of blue wave band and sending the light source of near infrared light wave band, the first light source and second Light source belongs to one of light source.Can be that for the light source of blue wave band, secondary light source is near infrared light wave band to the first light source Light source, or, the first light source near infrared light wave band light source and the light source of the blue wave band of secondary light source.

Accordingly, light source works pattern includes opening the light source irradiation of blue wave band, and closes the light of near infrared light wave band Source；The light source irradiation of near infrared light wave band is opened, and closes the light source of blue wave band；Open simultaneously using near infrared light wave band The light source of light source and blue wave band irradiates these three light source works patterns, the first light source works pattern and secondary light source mode of operation Belong to one of these three light source works patterns, and the first light source works pattern is different with secondary light source mode of operation.

Wherein, under the irradiation of the light source of blue wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm got includes palmprint information and does not include vena metacarpea information；

Under the irradiation of the light source of near infrared light wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm for arriving includes vena metacarpea information and does not include palmprint information；

Live body palm blue wave band light source and near infrared light wave band light source while irradiation under, palm testing equipment The image of the live body palm got by image collecting device includes vena metacarpea information and palmprint information；

Palmprint information and vena metacarpea information belong to different palm characteristic informations.

Wherein, in embodiments of the present invention, including palmprint information and be not referred to as palmmprint figure including the image of vena metacarpea information Picture, including vena metacarpea information and be not referred to as vena metacarpea image including the image of palmprint information, including vena metacarpea information and palmmprint letter The image of breath is referred to as palmmprint and vena metacarpea image.

If palm to be detected is non-living body palm, under three kinds of above-mentioned light source works patterns, palm testing equipment is obtained Get the same palm characteristic information of non-living body palm.I.e. under the first light source works pattern or secondary light source mode of operation Under, or palm testing equipment all gets the palmprint image of non-living body palm；The palm for all getting non-living body palm is quiet Arteries and veins image；The palmmprint and vena metacarpea image of non-living body palm are all got simultaneously.I.e. under the first light source works pattern and Under secondary light source mode of operation, the image of the non-living body palm that palm testing equipment gets is believed including identical palm feature Breath.

It is hereby understood that include sending the light source of blue wave band in light source and send the light source of near infrared light wave band, and first When light source and secondary light source belong to one of both light sources, the feelings of the palm characteristic information that palm testing equipment is detected Condition includes：A palmprint images, B vena metacarpea images, C palmmprints and vena metacarpea image.

If palm to be detected is non-living body palm, the palm for such as printing, the palm characteristic information of its related palm for printing It is a kind of generally in three of the above (A, B, C) situation, and change the species of the palm characteristic information that light source works situation is detected Will not change.

If palm to be detected is live body palm, the biological characteristic of related palm has three of the above (A, B, C) situation, and changes The palm characteristic information that light source works situation is detected also can be changed accordingly.

As shown in Table 3, table three shows several situations of the palm characteristic information that non-living body palm includes, and not During with light source works, the palm characteristic information that palm testing equipment is detected to non-living body palm and live body palm.

Table three

It can be seen from the corresponding relation of the live body palm in table three and the above-mentioned description to live body palm detection case, can According to the working condition of different light sources in palm testing equipment the preset palm characteristic information for detection, that is, pre-build light The corresponding relation of source mode of operation and palm characteristic information type, as shown in Table 4.

Table four

That is, when circuit control device controls the light source works of blue wave band, system intialization palm characteristic information is to include Palmprint information and include vena metacarpea information；When circuit control device control near-infrared light source is started working, system intialization hand Palm characteristic information is to include vena metacarpea information and including palmprint information；When circuit control device control blue wave band light source and The light source of near infrared light wave band works simultaneously when, system intialization palm characteristic information is to include vena metacarpea information and palmprint information.

So as under first, second light source works pattern, palm testing equipment determines according to the corresponding relation of table four One/secondary light source mode of operation palm characteristic information.After palm characteristic information on the first image/the second image is identified, It is compared with the palm characteristic information determined according to the corresponding relation using the palm characteristic information for identifying.Judgement is identified Palm characteristic information whether be consistent with the palm characteristic information determined according to corresponding relation.

Wherein, palm testing equipment recognizes that the method for the palm characteristic information on the first image/the second image can be, in advance Multiple palmprint images, vena metacarpea image, and palmmprint and vena metacarpea image are first obtained, variety classes figure is determined by statistical analysis The information rule of picture.Identification module is generated according to statistical law, the identification module is provided with palm testing equipment.In hand The palm testing equipment get after the first image/the second image, palm testing equipment can by the identification module to the first image/ Second image is identified, and determines the palm characteristic information on the first image/the second image.

As shown in Table 5, table five shows under different light source works patterns that the default palm feature of palm testing equipment is believed Breath, and palm testing equipment, when obtaining the image of non-living body palm or live body palm, these images are believed with preset palm feature The situation about whether matching of breath.

Table five

As shown in the above, in different light source works patterns of change, palm testing equipment passes through image collecting device The palm characteristic information for getting live body palm also changes accordingly, and this corresponding variation relation can be by shown in table six.

Table six

So as to, under the first light source works pattern and under secondary light source mode of operation, palm testing equipment get the When the change of the palm characteristic information on one image and the second image meets the situation shown in table six, it may be determined that palm to be detected is Live body palm, is otherwise non-living body palm.

That is, under first, second light source works pattern, palm testing equipment according to the corresponding relation of table four, determine first/ Secondary light source mode of operation palm characteristic information.After palm characteristic information on the first image/the second image is identified, according to The palm characteristic information for identifying is compared with the palm characteristic information determined according to corresponding relation.If the palm of the first image Characteristic information and corresponding preset palm characteristic information match, and the palm characteristic information of the second image and corresponding preset hand The palm characteristic information match, then palm testing equipment judges that palm to be detected is live body palm, otherwise judge palm to be detected as Non-living body palm.

So as to specific operative scenario can be with as described below.

1) it is the light source using blue wave band and when not using the light source of near infrared light wave band in the first light source works pattern, Corresponding relation according to table four, preset palm characteristic information corresponding with the first light source works pattern is to include that palmmprint is believed Cease and do not include vena metacarpea information.

Under the first light source works pattern, palm testing equipment is obtained after the first image of palm to be detected, palm detection Equipment detects the palm characteristic information of the first image, and by the palm characteristic information of the first image and preset palm characteristic information Match somebody with somebody, that is, judge whether the first image includes palmprint information and do not include vena metacarpea information.

It is the light source using near infrared light wave band and when not using the light source of blue wave band in secondary light source mode of operation, root According to the corresponding relation shown in table four, preset palm characteristic information corresponding with secondary light source mode of operation is to include that vena metacarpea is believed Cease and do not include palmprint information.

Under secondary light source mode of operation, palm testing equipment is obtained after the second image of palm to be detected, palm detection Equipment detects the palm characteristic information of the second image, and by the palm characteristic information of the second image and preset palm characteristic information Match somebody with somebody, that is, judge whether the second image includes vena metacarpea information and do not include palmprint information.

When the first image include palmprint information and include vena metacarpea information, and the second image include vena metacarpea information and not During including palmprint information, palm testing equipment determines that palm to be detected is live body palm, otherwise determines that palm to be detected is Non-living body palm.

2) it is the light source using blue wave band and when not using the light source of near infrared light wave band in the first light source works pattern, Corresponding relation according to table four, preset palm characteristic information corresponding with the first light source works pattern is to include that palmmprint is believed Cease and do not include vena metacarpea information.

Under the first light source works pattern, palm testing equipment is obtained after the first image of palm to be detected, palm detection Equipment detects the palm characteristic information of the first image, and by the palm characteristic information of the first image and preset palm characteristic information Match somebody with somebody, that is, judge whether the first image includes palmprint information and do not include vena metacarpea information.

In the light source that secondary light source mode of operation is the light source and blue wave band for using near infrared light wave band simultaneously, according to Corresponding relation shown in table four, preset palm characteristic information corresponding with secondary light source mode of operation is to include vena metacarpea information And palmprint information.

Under secondary light source mode of operation, palm testing equipment is obtained after the second image of palm to be detected, palm detection Equipment detects the palm characteristic information of the second image, and by the palm characteristic information of the second image and preset palm characteristic information Match somebody with somebody, that is, judge whether the second image includes vena metacarpea information and palmprint information.

Do not include vena metacarpea information when the first image includes palmprint information, and the second image includes vena metacarpea information and the palm During line information, palm testing equipment determines that palm to be detected is live body palm, otherwise determines that palm to be detected is non-living body palm.

3) it is the light source using near infrared light wave band and when not using the light source of blue wave band in the first light source works pattern, Corresponding relation according to table four, preset palm characteristic information corresponding with the first light source works pattern is to include vena metacarpea Information and include palmprint information.

Under the first light source works pattern, palm testing equipment is obtained after the first image of palm to be detected, palm detection Equipment detects the palm characteristic information of the first image, and by the palm characteristic information of the first image and preset palm characteristic information Match somebody with somebody, that is, judge whether the first image includes vena metacarpea information and do not include palmprint information.

In the light source that secondary light source mode of operation is the light source and blue wave band for using near infrared light wave band simultaneously, according to Corresponding relation shown in table four, preset palm characteristic information corresponding with secondary light source mode of operation is to include vena metacarpea information And palmprint information.

Under secondary light source mode of operation, palm testing equipment is obtained after the second image of palm to be detected, palm detection Equipment detects the palm characteristic information of the second image, and by the palm characteristic information of the second image and preset palm characteristic information Match somebody with somebody, that is, judge whether the second image includes vena metacarpea information and palmprint information.

Do not include palmprint information when the first image includes vena metacarpea information, and the second image includes vena metacarpea information and the palm During line information, palm testing equipment determines that palm to be detected is live body palm, otherwise determines that palm to be detected is non-living body palm.

According to three above-mentioned concrete scenes it is known that above-mentioned fisrt feature information and second feature information belongs to the palm One of venous information and palmprint information, and fisrt feature information and second feature information differs.First light source and Two light sources belong to one of the light source of infrared band and the light source of blue wave band, and the first light source is different with secondary light source.According to The work relationship of the first light source and secondary light source, can obtain three kinds of light source works patterns, the first light source works pattern and secondary light source Mode of operation belongs to one of these three light source works patterns, and the first light source works pattern and secondary light source mode of operation are difference Light source works pattern.

Specifically：

1st, when the first light source is the light source that sends blue wave band, and secondary light source is the light source for sending near infrared light wave band When, now, first, second light source works pattern includes two kinds of situations：

1.1) the first light source works pattern is to open the light source irradiation of blue wave band, and closes the light of near infrared light wave band Source；Secondary light source mode of operation is to open the light source irradiation of near infrared light wave band, and closes the light source of blue wave band.

1.2) the first light source works pattern is to open the light source irradiation of blue wave band, and closes the light of near infrared light wave band Source；Secondary light source mode of operation is the light source irradiation of the light source and near infrared light wave band for opening blue wave band simultaneously.

2nd, when the first light source is the light source that sends near infrared light wave band, and secondary light source is the light source for sending blue wave band When, now first, second light source works pattern includes two kinds of situations：

2.1) the first light source works pattern is the light source using near infrared light wave band, and does not use the light source of blue wave band； And secondary light source mode of operation is that the light source of near infrared light wave band is irradiated and do not used using the light source of blue wave band,

2.2) the first light source works pattern is the light source irradiation for opening near infrared light wave band and the light for not using blue wave band Source；Secondary light source mode of operation is to open the light source irradiation of the light source and blue wave band for using near infrared light wave band simultaneously.

In order to preferably illustrate to the embodiment of the present invention, name a specific example and the embodiment of the present invention is retouched State.

As depicted in figs. 1 and 2, palm testing equipment is provided with the first light source and secondary light source, wherein the first light source is blue light The light source of wave band, secondary light source is the light source of infrared band.Light source works pattern preset on palm testing equipment is first to hold Row the first light source works pattern performs again secondary light source mode of operation, wherein the first light source works pattern is to open blue wave band Light source irradiates, and closes the light source of near infrared light wave band.Palm testing equipment pre-builds the first light source works pattern and first The corresponding relation of preset palm characteristic information, the first preset palm characteristic information is to include palmprint information and do not include vena metacarpea Information；

Secondary light source mode of operation is to open the light source irradiation of near infrared light wave band, and closes the light source of blue wave band, hand Palm testing equipment pre-builds the corresponding relation of secondary light source mode of operation and the second preset palm characteristic information, and this is second preset Palm characteristic information is to include vena metacarpea information and do not include palmprint information.So as to first use the first light source in palm testing equipment Mode of operation, when reusing secondary light source mode of operation, the change of preset palm characteristic information is turned to from the first preset palm spy Reference breath is changed into the second preset palm characteristic information.

As shown in figure 1, when user carries out palm detection, palm testing equipment starts the first light source works pattern, passes through Image collecting device obtains the first image of current palm to be detected, and then palm testing equipment uses secondary light source mode of operation The first light source works pattern is substituted, the second image of palm to be detected is obtained by image collecting device.Palm testing equipment point The palm characteristic information of the first image and the second image is not detected, if the palm characteristic information of the first image and the first preset palm Such as characteristic information is consistent, i.e. the first image includes palmprint information and do not include vena metacarpea information, palmmprint figure as shown in Figure 3 Picture；And second the palm characteristic information of image be consistent with the second preset palm characteristic information, i.e. the second image includes vena metacarpea Information and include palmprint information, such as vena metacarpea image as shown in Figure 4, then palm testing equipment judge the palm to be detected For live body palm, otherwise judge the palm to be detected as non-living body palm.

Wherein, if palm to be detected is the palm characteristic information printed on the scraps of paper, palm testing equipment obtain the After one image and the second image, the palm characteristic information of the first figure may be inconsistent with the first preset palm characteristic information, And/or second the palm characteristic information of image may be inconsistent with the second preset palm characteristic information, for example：First image bag Include palmprint information and do not include vena metacarpea information, and the second image includes palmprint information and does not include vena metacarpea information；Or, the One image includes vena metacarpea information and does not include palmprint information, and the second image slices include vena metacarpea information and do not believe including palmmprint Breath；Or first image slices include vena metacarpea information and palmprint information, and the second image includes vena metacarpea information and palmprint information.

Said method is after the identification of the image type that carries out palm characteristic information of the palm to be detected to obtaining, according to Preset palm characteristic information is compared, and judges whether to be consistent, so as to judge whether palm to be detected is live body palm.It is following Method is directly to carry out similarity degree comparison to the first image and the second image, so as to judge whether palm to be detected is live body hand The palm.

2nd, similarity degree comparison is carried out using the first image and the second image

To step 804, step 805 " according to the first image and the second image, judges palm to be detected to execution step 801 Whether be live body palm " concrete grammar can perform as follows：

Step A1：The first image and the second image are contrasted, matching degree is obtained.

Matching degree is used to represent the similarity degree of the first image and the second image；

Because the light source that the light source and secondary light source mode of operation that the first light source works pattern is used is used includes different Optical band, live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, hand Palm testing equipment gets the different palm characteristic information of live body palm by image collecting device, and non-living body palm is respectively the Under the light source of one light source works pattern and the light source irradiation of secondary light source mode of operation, palm testing equipment passes through image collector Put and get non-living body palm identical palm characteristic information.So, under different light source works patterns, palm testing equipment is obtained First image and the second image of the live body palm for taking is different, the palm characteristic information that the first image and the second image include Differ.Under different light source works patterns, first image and the second image of the non-living body palm that palm testing equipment is obtained It is identical, the palm characteristic information that the first image and the second image include is identical.

So as to according to the first image and the similarity degree of the second image, you can judge whether palm to be detected is live body hand The palm.

Step A2：Judge matching degree whether less than pre-set threshold value.

Matching degree is used to represent the similarity degree of the first image and the second image that the pre-set threshold value to be according to test statistics data Obtain.For example, under the first light source works pattern and secondary light source mode of operation, obtain and multigroup belong to the of same live body palm After one image and the second image, it is compared with multigroup the first image and the second image for belonging to same live body palm, and is obtained After taking multigroup the first image and the second image for belonging to same non-living body palm, multigroup the of same non-living body palm is belonged to this One image and the second image are compared, and according to these comparative results the pre-set threshold value is obtained.

If the similarity of two images is more than the pre-set threshold value, you can think that the similarity of this two images is larger, from And it is believed that this two images belong to the palm of forgery.Otherwise it is assumed that two images belong to live body palm.

Step A3：If matching degree is less than pre-set threshold value, it is determined that palm to be detected is live body palm, is otherwise determined to be detected Palm is non-living body palm.

If the similarity of first image and the second image is more than the pre-set threshold value, you can think the similar of this two images Degree is larger, so as to it is believed that this two images belong to non-living body palm.If matching degree is less than pre-set threshold value, it is determined that hand to be detected Slap as live body palm.

For example, include irradiating using the first light source and not using secondary light source, use secondary light source in light source works pattern Irradiation and do not use the first light source, while when using the first light source and secondary light source to irradiate, the first light source works pattern and second Light source works pattern belongs to one of these light source works patterns, the first light source works pattern and secondary light source mode of operation It is different.

Alternatively, light source includes sending the light source of blue wave band and sends the light source of near infrared light wave band, the first light source and Secondary light source belongs to one of light source,

Wherein, under the irradiation of the light source of blue wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm got includes palmprint information and does not include vena metacarpea information；

Under the irradiation of the light source of near infrared light wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm for arriving includes vena metacarpea information and does not include palmprint information；

Live body palm blue wave band light source and near infrared light wave band light source while irradiation under, palm testing equipment The image of the live body palm got by image collecting device includes vena metacarpea information and palmprint information；

Palmprint information and vena metacarpea information belong to different palm characteristic informations.

If palm to be detected is non-living body palm, under three kinds of above-mentioned light source works patterns, palm testing equipment is obtained Get the same palm characteristic information of non-living body palm.I.e. under the first light source works pattern or secondary light source mode of operation Under, or palm testing equipment all gets the palmprint information of non-living body palm, and obtain the vena metacarpea less than non-living body palm Information；The palmprint information less than non-living body palm is all obtained, and gets the vena metacarpea information of non-living body palm；All The palmprint image and vena metacarpea information of non-living body palm are got simultaneously.With secondary light source work i.e. under the first light source works pattern Under operation mode, the image of the non-living body palm that palm testing equipment gets includes identical palm characteristic information.

Include sending the light source of blue wave band in light source and send the light source of near infrared light wave band, and the first light source and second When light source belongs to one of both light sources, the situation of the palm characteristic information that palm testing equipment is detected includes：A is slapped Print image, B vena metacarpea images, C palmprint images and vena metacarpea image.

If palm to be detected is non-living body palm, the palm for such as printing, the palm characteristic information of its related palm for printing It is a kind of generally in three of the above (A, B, C) situation, and change the species of the palm characteristic information that light source works situation is detected Will not change.I.e. under the first light source works pattern and under secondary light source mode of operation, palm testing equipment gets The palm characteristic information that the image of non-living body palm includes is identical, for example, the palmprint image all shown in Fig. 3, or be all Fig. 4 Shown vena metacarpea image, or be all palmmprint as shown in Figure 5 and vena metacarpea image, without getting Fig. 3 to Fig. 5 in The two of which of image.

If palm to be detected is live body palm, the biological characteristic of related palm has three of the above (A, B, C) situation, and changes The palm characteristic information that light source works situation is detected also can be changed accordingly.

As shown in above-mentioned table three, table three shows several situations of the palm characteristic information that non-living body palm includes, and In different light source works, the palm characteristic information that palm testing equipment is detected to non-living body palm and live body palm.

Such that it is able to learn, the first light source works pattern and secondary light source mode of operation is used alternatingly in palm testing equipment Under, palm testing equipment is obtained respectively after first image and the second image of live body palm by image collecting device thereon, Such as step 803 and step 804.First image and the second image are different because of the palm characteristic information for including thereon, the first image and The similarity degree of the second image is relatively low.The first light source works pattern and secondary light source Working mould is used alternatingly in palm testing equipment Under formula, palm testing equipment obtains respectively first image and the second figure of non-living body palm by image collecting device thereon Picture, first image and the second image are identical because of the palm characteristic information for including thereon, so as to the first image and the second image Similarity degree is higher.In order to distinguish the height of similarity, live body palm and non-living body palm can be examined using palm testing equipment Test is tested, and statistical results, and the matching degree for obtaining a pre-set threshold value, the first image and the second image is more than the default valve Value, then judge that the similarity of the first image and the second image is higher, determines the first image and the hand to be detected belonging to the second image Slap as non-living body palm, conversely, being defined as live body palm.

The method that second of the image of use first and the second image carry out similarity degree comparison, without the need for setting to palm detection Standby the first image for obtaining and the second image carry out the identification of palm characteristic information, as long as directly comparing the first image and the second figure The similarity of picture, such comparative approach can improve the detection efficiency of the palm detection method of the embodiment of the present invention, and letter The algorithm on palm testing equipment is changed.

It is appreciated that the embodiment of the present invention is that the first light source works pattern and second is used alternatingly by palm testing equipment Light source works pattern is illustrated, and in the embodiment having, palm testing equipment can use various light sources mode of operation, example Such as, according to the first light source and the work relationship of secondary light source, three kinds of light source works patterns can be obtained, palm testing equipment can be alternately Using these three light source works patterns.

In sum, on palm testing equipment, in the first light source works pattern, obtained by image collecting device and treated First image of detection palm；In secondary light source mode of operation, by image collecting device the second of palm to be detected is obtained Image；Then, according to the first image and the second image, judge whether palm to be detected is live body palm.First light source works mould The light source that the light source and secondary light source mode of operation that formula is used is used includes different optical bands, because of the difference of glistening light of waves section, causes Respectively under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, palm detection sets live body palm Standby to get the different palm characteristic information of live body palm by image collecting device, non-living body palm is respectively in the first light source work Under the light source of operation mode and the light source irradiation of secondary light source mode of operation, palm testing equipment is got by image collecting device Non-living body palm identical palm characteristic information.So, by the way that the light source works pattern including different glistening light of waves sections, hand is used alternatingly Palm testing equipment obtains respectively the different images of palm to be detected by image collecting device, and the different images are analyzed, Can show whether palm to be detected is live body palm, so as to differentiation that is simple and efficiently realizing live body palm.

Fig. 9 is a kind of structural representation of the palm testing equipment according to an exemplary embodiment.The palm detection In the palm detection method of the executable above-described embodiment of equipment, palm testing equipment includes image collecting device, referring to Fig. 9, this The palm testing equipment that inventive embodiments are provided includes：

Image acquisition unit 901, in the first light source works pattern, by image collecting device hand to be detected being obtained First image of the palm；

Image acquisition unit 901, is additionally operable to, in secondary light source mode of operation, obtain to be detected by image collecting device Second image of palm；

Judging unit 903, for according to the first image and the second image, judging whether palm to be detected is live body palm；

Wherein, the light source that the light source and secondary light source mode of operation that the first light source works pattern is used is used includes different Optical band.

Alternatively,

Live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, hand Palm testing equipment gets the different palm characteristic information of live body palm by image collecting device, and non-living body palm is respectively the Under the light source of one light source works pattern and the light source irradiation of secondary light source mode of operation, palm testing equipment passes through image collector Put and get non-living body palm identical palm characteristic information.

Alternatively,

First light source works pattern is to be irradiated using the first light source and do not use the secondary light source, secondary light source mode of operation to be Irradiated using secondary light source and do not use the first light source, wherein, the light that the optical band and secondary light source that the first light source sends sends Wave band is different,

Judging unit 903, is additionally operable to not include second feature information when the first image includes fisrt feature information, and the When two images include second feature information and do not include fisrt feature information, determine that palm to be detected is live body palm；

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm,

When being irradiated using secondary light source and not using the first light source, palm testing equipment can be obtained by image collecting device Get the second feature information of live body palm, and obtain the fisrt feature information less than live body palm, fisrt feature information and the Two characteristic informations are different palm characteristic informations.

Alternatively,

First light source works pattern is to be irradiated using the first light source and do not use the secondary light source, secondary light source mode of operation to be Irradiated using the first light source and secondary light source simultaneously, wherein, the light wave that the optical band and secondary light source that the first light source sends sends Duan Butong,

Judging unit 903, is additionally operable to not include second feature information when the first image includes fisrt feature information, and the When two images include second feature information and fisrt feature information, determine that palm to be detected is live body palm,

Wherein, when being irradiated using the first light source and not using secondary light source, palm testing equipment passes through image collector The fisrt feature information of live body palm that can get is put, and obtains the second feature information less than live body palm；

When being irradiated using the first light source and secondary light source at the same time, palm testing equipment can be obtained by image collecting device To the fisrt feature information and second feature information of live body palm, fisrt feature information and second feature information are different palms Characteristic information.

Alternatively,

Judging unit 903, including：

Contrast module 904, for contrasting the first image and the second image, obtains matching degree, and matching degree is used to represent first The similarity degree of image and the second image；

Judge module 905, for judging matching degree whether less than pre-set threshold value；

Determining module 906, if being less than pre-set threshold value for matching degree, it is determined that palm to be detected is live body palm, otherwise Determine that palm to be detected is non-living body palm.

Alternatively,

Light source works pattern include using the first light source irradiate and do not use secondary light source, use secondary light source irradiate and not Using the first light source, while using the first light source and secondary light source irradiation, the first light source works pattern and secondary light source Working mould Formula belongs to one of light source works pattern, and the first light source works pattern is different from secondary light source mode of operation.

Alternatively, light source includes sending the light source of blue wave band and sends the light source of near infrared light wave band, the first light source and Secondary light source belongs to one of the light source,

Wherein, under the irradiation of the light source of blue wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm got includes palmprint information and does not include vena metacarpea information；

Under the irradiation of the light source of near infrared light wave band, palm testing equipment is obtained live body palm by image collecting device The image of the live body palm for arriving includes vena metacarpea information and does not include palmprint information；

Live body palm blue wave band light source and near infrared light wave band light source while irradiation under, palm testing equipment The image of the live body palm got by image collecting device includes vena metacarpea information and palmprint information；

Palmprint information and vena metacarpea information belong to different palm characteristic informations.

Alternatively, the equipment also includes：

Region decision unit 902, for judging position of the palm to be detected relative to palm testing equipment whether in image Obtain region；

If palm to be detected relative to palm testing equipment position in image-acquisition area, image acquisition unit 901 Perform under the first light source works pattern, the first image of palm to be detected is obtained by image collecting device, and image is obtained Unit 901 under secondary light source mode of operation, the step of obtain the second image of palm to be detected by image collecting device；

If palm to be detected relative to palm testing equipment position not in image-acquisition area, send information.

Alternatively

Image collecting device includes optical filter, and optical filter can pass through the optical band of the first light source and the light wave of secondary light source Section.

In sum, on palm testing equipment, image acquisition unit 901 in the first light source works pattern, by figure As harvester obtains the first image of palm to be detected；Image acquisition unit 901 in secondary light source mode of operation, by figure As harvester obtains the second image of palm to be detected；Then, judging unit 903 is sentenced according to the first image and the second image Whether the palm to be detected that breaks is live body palm.What the light source and secondary light source mode of operation that the first light source works pattern is used was used Light source includes different optical bands, because of the difference of glistening light of waves section, causes live body palm respectively in the light source of the first light source works pattern Under the light source irradiation of secondary light source mode of operation, palm testing equipment gets the different image information of live body palm.So, By the way that the light source works pattern including different glistening light of waves sections is used alternatingly, palm testing equipment is obtained respectively by image collecting device The different images are analyzed by the different images of palm to be detected, you can show whether palm to be detected is live body palm, from And differentiation that is simple and efficiently realizing live body palm.

Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematic, for example, the unit Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing Can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit Close or communicate to connect, can be electrical, mechanical or other forms.

The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can according to the actual needs be selected to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used When, during a computer read/write memory medium can be stored in.Based on such understanding, technical scheme is substantially The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products Embody, the computer software product is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention Portion or part steps.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.

The above, above example only to illustrate technical scheme, rather than a limitation；Although with reference to front State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to front State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.

Claims (13)

1. a kind of palm detection method, it is characterised in that methods described is applied to palm testing equipment, and methods described includes：

In the first light source works pattern, the first image of palm to be detected is obtained by image collecting device；

In secondary light source mode of operation, the second image of the palm to be detected is obtained by described image harvester；

According to described first image and second image, judge whether the palm to be detected is live body palm；

Wherein, the light source that the light source and the secondary light source mode of operation that the first light source works pattern is used is used is included not Same optical band.

2. method according to claim 1, it is characterised in that

Live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, the hand Palm testing equipment gets the different palm characteristic information of the live body palm, non-living body palm by described image harvester Respectively under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, the palm testing equipment leads to Cross described image harvester and get non-living body palm identical palm characteristic information.

3. method according to claim 1, it is characterised in that

The first light source works pattern is that secondary light source, the secondary light source Working mould are irradiated and do not used using the first light source Formula is that first light source is irradiated and do not used using the secondary light source, wherein, the optical band that first light source sends and The optical band that the secondary light source sends is different,

It is described to judge whether the palm to be detected is live body palm according to described first image and second image, including：

Do not include second feature information when described first image includes fisrt feature information, and second image is including described Second feature information and not include the fisrt feature information when, determine the palm to be detected be live body palm；

Wherein, when being irradiated using first light source and not using the secondary light source, the palm testing equipment passes through institute Stating image collecting device can get the fisrt feature information of live body palm, and obtains and believe less than the second feature of live body palm Breath,

When being irradiated using the secondary light source and not using first light source, the palm testing equipment passes through described image Harvester can get the second feature information of live body palm, and obtain and believe less than the fisrt feature of live body palm Breath, the fisrt feature information and the second feature information are different palm characteristic informations.

4. method according to claim 1, it is characterised in that

The first light source works pattern is that secondary light source, the secondary light source Working mould are irradiated and do not used using the first light source Formula is to be irradiated using first light source and the secondary light source simultaneously, wherein, optical band and institute that first light source sends The optical band difference that secondary light source sends is stated,

It is described to judge whether the palm to be detected is live body palm according to described first image and second image, including：

Do not include second feature information when described first image includes fisrt feature information, and second image is including described When second feature information and the fisrt feature information, determine that the palm to be detected is live body palm,

Wherein, when being irradiated using first light source and not using the secondary light source, the palm testing equipment passes through institute Stating image collecting device can get the fisrt feature information of live body palm, and obtains and believe less than the second feature of live body palm Breath；

When being irradiated using first light source and the secondary light source at the same time, the palm testing equipment is adopted by described image Acquisition means can get the fisrt feature information and the second feature information of live body palm, the fisrt feature information and The second feature information is different palm characteristic informations.

5. method according to claim 1, it is characterised in that

It is described to judge whether the palm to be detected is live body palm according to described first image and second image, including：

Contrast described first image and second image, obtain matching degree, and the matching degree is used to represent described first image With the similarity degree of second image；

Judge the matching degree whether less than pre-set threshold value；

If the matching degree is less than pre-set threshold value, it is determined that the palm to be detected is live body palm.

6. method according to claim 5, it is characterised in that

Light source works pattern includes irradiating using the first light source and not using secondary light source, use the secondary light source to irradiate and not Using first light source, while being irradiated using first light source and the secondary light source, the first light source works pattern Belong to one of described light source works pattern, the first light source works pattern and institute with the secondary light source mode of operation State secondary light source mode of operation different.

7. the method according to claim 3 or 4 or 6, it is characterised in that the light source includes sending the light source of blue wave band With the light source for sending near infrared light wave band, first light source and the secondary light source belong to one of described light source,

Wherein, live body palm under the irradiation of the light source of the blue wave band, by described image adopted by the palm testing equipment The image of the live body palm that acquisition means get includes palmprint information and does not include vena metacarpea information；

Under the irradiation of the light source of the near infrared light wave band, the palm testing equipment is gathered live body palm by described image The image of the live body palm that device gets includes vena metacarpea information and does not include palmprint information；

Live body palm the blue wave band light source and the near infrared light wave band light source while irradiation under, the palm The image of the live body palm that testing equipment is got by described image harvester includes vena metacarpea information and palmprint information；

The palmprint information and the vena metacarpea information belong to different palm characteristic informations.

8. the method according to any one of claim 1 to 6, it is characterised in that methods described also includes：

Judge position of the palm to be detected relative to the palm testing equipment whether in image-acquisition area；

If the palm to be detected obtains region relative to the position of the palm testing equipment in described image, perform described Under the first light source works pattern, the first image of palm to be detected is obtained by image collecting device, and it is described in the second light Under the mode of operation of source, the step of obtain the second image of the palm to be detected by image collecting device；

If the palm to be detected does not obtain region relative to the position of the palm testing equipment in described image, send and carry Show information.

9. the method according to any one of claim 1 to 6, it is characterised in that

Described image harvester includes optical filter, and the optical filter can pass through the optical band and described second of first light source The optical band of light source.

10. a kind of palm testing equipment, it is characterised in that the palm testing equipment includes image collecting device, the palm Testing equipment includes：

Image acquisition unit, in the first light source works pattern, by image collecting device the of palm to be detected being obtained One image；

Image acquisition unit, is additionally operable to, in secondary light source mode of operation, obtain described to be checked by described image harvester Survey the second image of palm；

Judging unit, for according to described first image and second image, judging whether the palm to be detected is live body Palm；

Wherein, the light source that the light source and the secondary light source mode of operation that the first light source works pattern is used is used is included not Same optical band.

11. equipment according to claim 10, it is characterised in that

Live body palm respectively the first light source works pattern light source and secondary light source mode of operation light source irradiation under, the hand Palm testing equipment gets the different palm characteristic information of live body palm, non-living body palm difference by described image harvester Under the light source of the first light source works pattern and the light source irradiation of secondary light source mode of operation, the palm testing equipment passes through institute State image collecting device and get non-living body palm identical palm characteristic information.

12. equipment according to claim 11, it is characterised in that

The first light source works pattern is that secondary light source, the secondary light source Working mould are irradiated and do not used using the first light source Formula is that first light source is irradiated and do not used using the secondary light source, wherein, the optical band that first light source sends and The optical band that the secondary light source sends is different,

The judging unit, is additionally operable to not include second feature information when described first image includes fisrt feature information, and When second image includes the second feature information and do not include the fisrt feature information, the palm to be detected is determined For live body palm；

Wherein, when being irradiated using first light source and not using the secondary light source, the palm testing equipment passes through institute Stating image collecting device can get the fisrt feature information of live body palm, and obtains and believe less than the second feature of live body palm Breath,

When being irradiated using the secondary light source and not using first light source, the palm testing equipment passes through described image Harvester can get the second feature information of live body palm, and obtain and believe less than the fisrt feature of live body palm Breath, the fisrt feature information and the second feature information are different palm characteristic informations.

13. equipment according to claim 10, it is characterised in that

The judging unit, including：

Contrast module, for contrasting described first image and second image, obtains matching degree, and the matching degree is used to represent The similarity degree of described first image and second image；

Judge module, for judging the matching degree whether less than pre-set threshold value；

Determining module, if being less than pre-set threshold value for the matching degree, it is determined that the palm to be detected is live body palm, otherwise Determine that the palm to be detected is non-living body palm.