EP1810218A2 - Method and device for acquiring biometric data - Google Patents

Abstract

The invention relates to a device for acquiring biometric data, especially fingerprints, by means of a device which is provided with an optically effective detector for recording the surfaces of areas of the body. The inventive device is characterized in that a mirror is provided in the beam path between the surface and the detector.

Description

 "Method and Apparatus for Collecting Biometric Data"

The invention relates to a method and a device for capturing biometric data, in particular fingerprints.

Devices and methods are known in the prior art in which, in particular, the device has an optically effective detector for recording the surface of body regions.

Known methods use a multiplicity of detectors for this purpose. ren or cameras that record Teilbe¬ rich finger angles under different aspect angles. It should be noted that essentially the fingerprint, so the finger profile is detected and described, the invention but in no way limited only to these biometric features, but optionally also for other body parts, for example, the palm, etc., can be used is.

According to the state of the art, the individual images recorded by the cameras are equalized by methods of image processing and combined in such a way that in the transition region the recorded line profiles merge continuously and faithfully into one another. This results in an overall picture that corresponds to that of a rolled-off finger profile.

A disadvantage of the known methods is that a plurality of cameras are to be used in the circumference or jacket area of the finger, which then record subregions of the finger profile. This large number of cameras makes appropriate Vor¬ devices consuming and expensive. It should also be noted that the diametrical arrangement of cameras makes the simultaneous detection of biometric data on different parts of the body, for example on different fingers, impossible, since the individual devices required for the finger can not be accommodated in a small space. As a result, the detection process as such is relatively complicated and tedious. Namely, only the fingers of at least one hand can be detected individually by these known devices. But then it must also be operated additional effort to ensure that the assignment of the individual fingers of a hand is ensured.

Other methods are known in the prior art, for example from International Patent Applications PCT-EP 2005-000588 and PCT-EP 2005-001230. It is furthermore known from the prior art to carry out a sequential sequence of the recording of finger or hand lines. Such an approach is ver¬ relatively time consuming.

For the large-area detection of, for example, the finger or hand lines large, optical imaging systems are known, which are relatively expensive.

From the prior art described above, it is also known to provide each a device for the detection of the left hand and a device for the detection of the right hand. This means a very high level of technical complexity, since both hands usually have to be read in at the same time.

On the basis of this prior art, the invention has made it its task to find an arrangement as space-saving as possible and to propose a device which is simpler and therefore more cost-effective.

To achieve this object, the invention proceeds from a device for acquiring biometric data, as described in the introduction, and proposes that a mirror be provided in the beam path between the surface and the detector.

In the proposals of the prior art, a plurality of detectors are arranged diametrically around the body region. To achieve a reasonable visual image, appropriate distances must be maintained. This results in a correspondingly large space requirement. The use of mirrors in the beam path makes it possible to arrange the arrangement of the detectors spatially separated from the region of the support of the body regions. For example, the detectors may be routed to a rear portion of the device, thereby the structure of such devices is significantly slimmer and gefäl¬ liger.

The device according to the invention is designed so that you can place in one embodiment, one or two fingers on a support on or behind the mirror is arranged directly. This edition can be between 1.5 cm to 3.0 cm deep and between 5.0 cm and 6.0 cm wide. Behind this support, for example, the mirror is provided as a half-ring mirror, which is larger in a circumference of 0.5 cm to 2.0 cm than the diameter of the thickest finger. The half-ring mirror is slightly conical, for example, so that the beams are deflected accordingly, for example, then to be passed through a lens to an optical sensor or detector or to a camera. This detector or the camera convert the images into digital or optical data, so that they can be evaluated accordingly. Of course, it is also possible to design such an evaluation of data with optical data or with photography-like recordings. The angle of the mirror is inclined at the cone approximately between 5 ° to 45 °. This also depends on where the light source or camera is arranged. In the context of the invention, the light source means both an artificial light source and a natural light source, for example daylight.

The distance of the optical sensors, detectors or the camera can now be chosen much further than was previously possible in the prior art. In addition, the Auswer¬ accuracy is much higher, since the annular configuration of the mirror, a much larger Flächenbe¬ rich of the finger or thumb or Körperbe¬ rich to be recognized is possible. Of course, it is also possible to provide a cone-shaped mirror as an open truncated cone on the support, through which at least one finger then passes. can be infected. Of course, it is also possible to make the edition so wide that you can put the entire palm on it. These are in width about 10.0 cm to 15.0 cm and in length between 10.0 and 25.0 cm, preferably 15.0 cm. This should be enough to scan a wide variety of hand sizes. The width of the half-ring mirror or ring mirror may be formed so that it covers only a part of the front fingertip. The width can also be designed so that it is able to detect the entire width or length of the finger. So a length of 1 cm to 10 cm is possible. Here the invention is not limited. Rather, it depends here on the specifications that are given for the detection. Of course, a lens can also be arranged instead of the camera, behind which then an optical detector or sensor adjoins, which prepares the data accordingly. With respect to the direction of the beam path, it is favorable if it extends substantially parallel to the applied body surface. But it can also be deflected by appropriate lenses in the beam path or split or bundled, depending on which detection means to make the detection. For example, in the case of a camera, it is possible to focus the beams. The beam path is not limited to this parallel arrangement. Rather, an angled up to the rectangular configuration of this beam path with respect to the surface to be scanned by the invention is included. The arc angle for the deflecting mirror or mirrors comprises 0 ° to 360 °, preferably about 180 °.

Another advantage of using a mirror is that the beam path can be folded by the mirror. This has advantages in the optical imaging with corresponding objectives or lens systems. ^{• ■} "O" ^■ *

However, the proposal also opens up the possibility that, in a space-saving manner, a plurality of similar devices according to the invention can be arranged next to one another in order to accommodate different body areas. Thus, an arrangement is provided which, in principle, allows a plurality of different biometric data from one and the same sample to be acquired in one acquisition step. This has entspeed speed and security advantages in the data acquisition. So it is possible to capture the entire hand or parts thereof, at least to the area of the carpal. It is also possible to grasp the hand only partially, but up to the finger approaches without problems.

In the context of the present invention, it is often spoken abstractly of body areas and often also in detail of the recording of the fingerprints on a finger. The invention is insofar not limited to the application to the recording of the Ober¬ surface shape of a finger, so a fingerprint be¬ limited, but can be transferred in an analogous manner to all other in¬ teressierenden body areas. In the course of biometric data acquisition, however, extensive databases with regard to fingerprints have been collected, which is why this field of application is correspondingly interesting, and it is precisely this area of application that also makes corresponding demands on the data acquisition device. This is due, in particular, to the fact that the finger corresponds approximately to a cylinder and the characteristic finger lines for the test person, which in their entirety form the fingerprints, are located on at least one partial jacket surface of this cylinder.

However, the otherwise known "unrolling" of a finger for generating a fingerprint is correspondingly complex in the case of an optical detection of the biometric data, since the middle surface is not located in one focal plane and still the one Data collection process should be completed reliably in a short time.

In a preferred development of the invention it has been found that it is favorable if the mirror is arched or curved, in particular U-shaped or semi-annular. Ideally, the domed or curved or U-shaped or semi-annular designed mirror is concentric with the idealized longitudinal axis of the finger. By means of such an embodiment it is achieved that the mirror surface follows the surface of the male body region and thus clearly reduces sharpening problems in optical imaging, since the area of the depth of field can be correspondingly reduced, and on the other side also the edge ¬ rich a finger, so its side surfaces are receivable at the same time, as well as these side areas can be imaged by the correspondingly arranged, as described designed mirror.

Therefore, the invention allows the important for the data acquisition finger area, namely from nail to. Nail in an angular segment of about 180 degrees (this of course varies from person to person). In this case, the invention achieves that only one camera is used to receive the finger profile, which detects an approximately 180 degree circumferential segment via the specially shaped mirror. In this case, it is possible to form the mirror with a corresponding width in order, for example, to image the entire fingertip area of interest in an image on the detector. In addition to this variant according to the invention, however, a variant is also proposed in which a mirror with a correspondingly smaller width (for example a few millimeters) is used which can then transmit a corresponding circumferential segment.

In a further variant of the invention according to the invention provided that the mirror is designed as a ring mirror. The ring mirror encloses the finger or the body area. This will throw an image of the entire finger circumference on the detector.

In the preferred variant of the invention it is provided that a conical shape of the mirror is used. With the embodiment of the cone, it is achieved that the rays emanating from the body region are deflected at the mirror in such a way that, for example with respect to the longitudinal extent of the body region, for example with a finger, with respect to its longitudinal axis, it extends substantially parallel or at an acute angle thereto , This allows in a simple manner a transfer of this image to a detector which can be arranged remotely, whereby a lens is still advantageously provided in the beam path. According to a variant of the invention, it is provided to image the entire interesting fingertip area with a correspondingly broadly equipped mirror. In another variant according to the invention, however, provision is also made for using only a relatively narrow mirror, resulting in that the surface area of the surface which can be scanned by the mirror is smaller in relation to the total surface of the body part to be received.

Since according to the invention, in particular, a space-saving, therefore small-scale device is desired, such an arrangement is favorable, since relatively large mirrors are dispensed with. In order nevertheless to take up the entire surface of interest of the body part, that is to say, for example, the fingertip area, in a further variant according to the invention, a relative movement is carried out between the body area and at least the mirror.

The result of this is that the detector, in accordance with the relative movement, has a sequence of many individual images, in each case standing from peripheral segments receives, which are then stored correlated in a memory and then equalized with known image processing methods and assembled into a total Ge image. In this case, the relative movement is preferably moved parallel or substantially parallel to the longitudinal extent of the male body area to be picked up, in the case of a finger, for example with respect to the idealized longitudinal axis of the cynical finger. The relative movement may result from a movement of the finger or from a movement of the mirror. Both variants are conceivable according to the invention.

Since it is provided according to the invention that the device is preferably arranged in a housing, it is favorable to arrange illumination in the device for the body region to be scanned.

It has turned out to be advantageous that a green light source be used as illumination since the green light source leads to correspondingly high-contrast images.

Cleverly, the illumination is arranged below the body region and is provided as close as possible in the region of the body region, that is to say, for example, of the finger.

For optimal illumination of the finger in the middle of the image of the detector, a light incidence from the direction of the detector er¬ is required. Since the available space within the device is limited, especially if a complex structure for the simultaneous detection of multiple Körperbe¬ rich / finger is provided, this leads to problems for the arrangement of lighting, as may the lighting for a view in any another picture of another detector can be seen. For this purpose, it is conveniently proposed to use a semi-permeable, partial reflector. th mirror, which serves to reflect the illumination in the beam path. Since for reasons of space, a deflection of the beam paths is advantageous anyway, partial mirrors are used here favorably.

In order to realize a sufficient illuminance, LED arrays are preferably used in strip-like fashion, ie in a row above one another or next to one another, preferably with directional radiation, for example by means of an illumination optics.

It is of considerable advantage if an objective is provided in the beam path between the surface and the detector, in particular between mirror and detector. A circumferential segment of the width B is imaged by the deflecting ring mirror, a mirror as described in more detail below, through the objective as a circle or circle segment with the width B ¹ on the detector. The maximum usable width B on the finger surface is limited by the aberrations that arise in the optical arrangement. Depending on the required spatial resolution on the surface of the body part and depending on the methods used for computational processing of the individual images captured by the detector, there is an optimum object width B for the individual image. Conveniently, the magnification of the objective is thereby determined such that a local element to be resolved on the body is imaged at least on one element, a so-called pixel of the detector. The magnification is determined on the one hand by the focal length of the lens used, its image and object width and the shape of the mirror.

Conveniently, a telecentric imaging is provided. A telecentric characteristic is an axis-parallel course of the main beams of an optical system. In particular, telecentricity used in the beam guidance facilitates, in particular, the image processing downstream of the detector. this leads to ultimately to a reduction of measuring or imaging errors, which otherwise would otherwise have to be filtered out consuming in the image post-processing.

In order to achieve a telecentric imaging, a front lens of the objective is required which corresponds at least to the size of the object. In a preferred variant, a rectangular front lens is proposed, which, in particular, approaches the object shape due to its asymmetrical design.

In a preferred variant of the invention, it is proposed that a relative movement is provided between the body region and at least the mirror. For carrying out this relative movement, several variants are conceivable. First, it is conceivable that at least the mirror is stationary during the recording and the relative movement of the movement of the body is already abge¬ forward. Such a configuration requires no additional drive. It is simply the Einführ- or Ausführbewe¬ tion of the body area, for example, the finger in the Vor¬ direction exploited. In this case, the movement of the finger is skillfully guided such that the interesting area of the finger, its underside, is guided over the mirror and the detector records a sequence of individual images, ie a film of the surface structure. The respective images have a correspondingly small width, corresponding to the selected embodiment of the mirror.

The relative movement can also be made in other ways. For example, it is favorable that a movement of the mirror is provided, at least during the reception of the body region, and otherwise the body region itself is fixed in place, that is to say in a suitable manner. In this first variant, at least only the mirror is moved, that is to say the optical component which "scans" the surface. Here In this case, of course, the entire optical unit is moved in a suitable manner, as described in the following variant of the invention. In this case, it is proposed that the detector, mirror and optionally the objective are combined as a sensor head and the sensor head is movable, in particular linearly movable. The optical parameters can therefore be set once and found in the sensor head. If, for example, the position of the mirror with respect to the detector, its objective or a separate objective changes, then the image would only have to be refocused with corresponding correction lenses or readjustments. Such an embodiment is in principle in the context of the invention also possible, but correspondingly more complex.

For the purposes of the invention, it is also given that a movement of the mirror is provided. Of course, it is also possible according to the invention to pivot the mirror. Even so, the advantages of the invention can be achieved. According to the invention, it is therefore intended to move either the hand, the sensor unit, or the mirror. If you move the mirror, however, the sensor unit remains in the separation angle. That is, it may need to be provided corresponding pivotally, so that an image or detection in each position of the mirror is possible.

Cleverly, the proposed sensor head, for example, for recording the surface property, is moved approximately concentrically over and parallel to the surface of the finger that is idealized as a cylindrical surface. In this case, contemplative cylinder strips or cylinder segments are imaged on the detector when a half-ring mirror is used, with suitable spatial resolution.

The invention also proposes a device for recording the finger characteristics, wherein the device more than five, in particular, carries six finger line imaging facilities. The Fingerlinienabbildungs- or recognition device is thus suitable for both the recognition of the left and the right hand. The Fingerlinienabbildungs- or Erkennungsungsanläge has therefore on the left and on the right side a Finger¬ imaging system for the left and right thumb. Thus, a device for detecting the left and right hands can be used. This avoids the very high expenditure required by the state of the art for the provision of two devices each with five finger imaging systems for the left and the right hand. According to the invention, only six finger imaging systems are now provided, wherein the finger imaging systems, which are arranged centrally, are designed universally for the detection of the fingers and the respective outer finger imaging systems for the detection of the left or right thumb. The fingerprint system thus serves both the detection or imaging of the fingers and the detection of the thumb. This saves a considerable effort in the production of such systems. It is also cheaper to operate such a system. In the devices known from the prior art, it was necessary to insert both hands simultaneously into the device. Now you can insert your hands in succession, which is cheaper for the test person or the person who is to be recognized, because one hand, for example, for supporting or for receiving a briefcase or other items now still has.

A development of the device described above is characterized in that in the device, a first part of the Fingerlinienabbildungs- or recognition system for detecting the finger lines of the first hand and a second part of the Fingerlinienabbildungs- or Erkennungsungsanläge used to recognize the finger lines of the second hand. This is a favorable development, since with it also the different anatomy of the Finger is considered. It succeeds by the clever arrangement of sensors, spotlights and the special way of forming the surfaces now, to enable the detection of both hands without special adaptation to the respective anatomy.

A development of the invention proposes that one or more Fingerlinienabbildungs- or detection systems is provided both when detecting the finger lines of the first as well as the second hand / are.

The invention is also distinguished by the fact that one detection sensor, in particular in the region of the finger line detection system of the left or right thumb, is provided for detecting the first or second hand. By means of this sensor, for example, the detection system is signaled that the left or the right hand has been inserted. Inso¬ it is not necessary to comply determined sequences of insertion. The device automatically detects which hand has been inserted.

Another aspect of the invention is characterized in that a support surface for the hand or the fingers is provided and in the support surface is provided over the ge entire width of the hand extending line sensor.

For the recording of the fingers or hand lines now a relative movement between the hand and the line sensor is necessary. In contrast to the state of the art, where a "portrait" image has been taken, that is to say the surface to be imaged has been held still, a sequence of relatively narrow-lipped image segments is now created with this proposal according to the invention, which is then processed accordingly in terms of image processing and put together to a big picture. The advantage of such a design is significant. First, the design effort for a device according to the invention is reduced considerably, since only a relatively narrow line sensor is to be used. It therefore results in a relatively small-sized device.

The invention in this case comprises both a solution in which a longitudinally extending line sensor is provided, as well as an arrangement of several line sensors side by side bezie¬ approximately offset side by side, which are suitable to take a certain part of the length of the hand.

In a preferred variant of the invention it is provided that the device has at least one finger coat surface imaging or recognition arrangement. This combination of a finger coat surface imaging or recognition arrangement with the line sensor namely makes it possible to carry out relatively complex images in only one processing step. The process is therefore relatively complex, because the fingers of the hand are to be regarded as approximately parallel or acute-angled cylinders, which are arranged relatively moderately closely spaced next to each other, and the characteristic finger jacket surfaces are relatively close to each other. A single unrolling of the finger in order to obtain the largest possible lateral surface would be a possibility, but this procedure is very time-consuming. If, however, a corresponding finger coat surface imaging or identification arrangement is provided for each individual finger, then by simply placing the fingers on the support surface of the device according to the invention, both the respective finger coat surfaces and the hand or finger lines are received become. The whole takes place in a single insertion and / or running the hand into the device. Corresponding finger line imaging or recognition systems are known, for example, from international patent applications PCT-EP 2005-000588 and PCT-EP 2005-001230. The contents of these patent applications are hereby incorporated by reference in its entirety and it is considered an integral part of this application.

In order to facilitate the recording of the finger coat surfaces, it is favorable that a plurality of spreading means for the fingers are provided in the device. These are preferably on, arranged on or above the support surface. The spreading means are, for example, pin or cylinder-like and are introduced into the spaces between the individual fingers. Similar but can also be done by appropriate wells in the support surface.

In a preferred embodiment of the invention, it is provided that at least one lateral contact surface is provided for guiding the hand side or the hand edge. Such a contact surface considerably facilitates the operability of the device. At the same time, however, it is also possible for an image sensor to be arranged in the abutment surface which serves, for example, to record the biometric information of the hand edge or of the back of the hand, that is to say corresponding hand edge or back of the hand.

It is envisaged that a corresponding contact surface is not only provided for the hand edge alone, but also leads to Bei¬ play on the hand between the index finger and the thumb, the hand side. In this case, it is also possible for these areas to be correspondingly scanned with a further image sensor and the lines to be detected accordingly.

This results in a further advantageous embodiment of the invention in that the hand is laterally separated from one side Investment surface is guided. One of these abutment surfaces supports the hand on the hand edge, the other possibly supports the finger area of the hand on the index finger. Of course, it is optionally possible that both contact surfaces are each equipped with an image sensor.

In this context, the invention also provides in a variant that a contact surface is of course also provided for the back of the hand, that is to say the upper side of the hand. In this case, for example, the location of this contact surface is variable, they can retreat a little. Thus, it is also possible in principle to also grasp the back of the hand, namely if the corresponding contact surface is also equipped with an image sensor.

An advantageous development of the invention is gekennzeich¬ net by a lateral, in particular angular or recht¬ angular mobility of the contact surfaces for retraction movement of the hand. This ensures that these contact surfaces do not interfere with the different investment of the left or right hand. In each case, the contact surface, which would interfere, is set and withdrawn either as a sequence sequence or is automatically returned by an automatic detection or a touch sensor, optical sensor or the like, so that the contact surface, which would disturb, then does not disturb , For the recognition process, these are moved back again, as far as the recognition system requires this for reliable recognition.

An advantageous development of this variant provides that a positioning means, for example a spring, is provided for the movable abutment surface to ensure that the spring retracts the abutment surface automatically and then corresponding means are provided to position the abutment surfaces, if one Hand is inserted. Cleverly, the support surface is excluded in the area of the finger jacket surface imaging or recognition arrangement in order not to hinder the optical beam path or to impair the image quality by contaminating contact surfaces.

It is achieved, the biometric information, so the hand-line or finger lines er¬ touch. By a corresponding recess in the Auflage¬ surface or appropriate spacing or the absence of other contact surfaces for the finger a distortion-free image is possible, which is not falsified by appropriate Verzerrun¬ gene by pressing the finger on corresponding surfaces and so on.

For the fastest possible acquisition of all necessary Bildin¬ formations, it is favorable that for each finger own Fingermantelflächen mapping or recognition arrangement vor¬ seen.

In a preferred variant of the invention, it is provided that the finger jacket surface imaging or recognition arrangement is formed, where appropriate, from a deflecting mirror, an imaging optics and an image recording unit. The use of a deflection mirror makes it possible to perform the image acquisition unit for the finger coat surface imaging and / or recognition spatially elsewhere. Such an arrangement can therefore be used to optimize the space arrangement accordingly. Optionally, the use of an imaging optics, low, this can be dispensed with, if such is not needed

Furthermore, the invention advantageously provides that the deflecting mirrors of adjacent finger line imaging or detection systems are offset from one another. Because the angle range between the fingers is relatively limited and the subject should not experience excessive spreading of the fingers, which would be unpleasant, it is favorable, the (for example großbauen-) deflecting mirror adjacent Fingerlinienabbildungs- or detection systems offset from each other to order so dro ¬ avoid space conflicts.

Of course, the same applies if a finger-line imaging or recognition device has a plurality of deflection mirrors, in which case a portion of these deflection mirrors of a finger-surface-area imaging or recognition arrangement may be positioned staggered relative to one another.

In a further advantageous embodiment of the invention, it is provided that the finger coat surface imaging or recognition arrangement comprises a plurality of deflection mirrors and each deflection mirror images individual areas of the finger coat surface. Such a division of the finger edge aperture image or recognition onto a plurality of individual deflection mirrors can offer advantages in the realization of corresponding devices according to the invention. Thus, it is possible to use ver¬ relatively simple, planar deflection mirror, which are then each arranged at an angle around the finger. Hier¬ are flat or flat or flat mirror to understand. These are much cheaper to produce than e.g. round or semicircular mirrors.

The deflecting mirrors are preferably arranged abutting on each other in order to provide an image that is as interruption-free as possible. It should be noted that a certain coverage area is maintained. Namely, the images of the invention are not joined together as in the panoramic image, but are generated by the provision of overlapping areas as an exact three-dimensional image (3-D model). In such an application case, for example, as a favorable variant each level, easier to be produced deflection mirror einge¬ sets.

Furthermore, the invention provides that the image recording unit is a planar image sensor or a line sensor. As a flat image sensor is understood, for example, a zweidimensio¬ nal sensor or camera. They are implemented, for example, in CCD technology and can be read line by line. For example, when using an annular deflecting mirror, an annular image is projected onto a two-dimensional image recording unit. However, it is also possible to form the image recording unit as a line or line sensor, the areal representation is then achieved by a correspondingly rapid readout of the sensor (similar to the two-dimensional image sensor). In general, the proposed image sensors or line sensors will also be described below as sensors. Conveniently, it is furthermore provided according to the invention that the sensor is designed, for example, as a color camera, that is to say it is capable of taking colored pictures.

The width of the sensors is small relative to the surface to be absorbed, since ultimately a recording film preferably takes place during the retraction movement (or even relative movement) of the hand or of the finger relative to the image recording unit. The captured images are then assembled into a two- or three-dimensional image. So is. Even with a flat image sensor, the regular reading out of the image information is necessary, with such a sensor correspondingly containing more information and, under certain circumstances, being readable only at a lower clock rate.

The advantage here is the use of a line sensor, which is much faster readable and therefore allows to supply more data, whereby the image quality is better, since per line unit, a larger number of image information per Time are generated. Such a line sensor is inexpensive.

In a preferred variant of the invention, it is further proposed that the areas of the finger jacket surface imaged by one of a plurality of deflection mirrors are each received by a region of the line sensor. Although a plurality of deflection mirrors, in particular planar deflection mirrors, are provided in a finger line imaging or detection system, the respectively deflected image information is transmitted again to a sensor or preferably a line sensor. The use of a quickly readable line sensor combines the simple design of the sensor, a simple design of the deflection mirrors, in particular as planar mirrors with the fast read-out speed of a corresponding line sensor. Especially when a large amount of data has to be collected, this is an advantage.

In addition to the advantages already described, it should be mentioned again that flat or planar mirrors are considerably cheaper to produce, making the production of the entire apparatus for acquiring biometric data more cost-effective overall. In a favorable variant of the invention, it is provided, for example, to arrange five such planar or planar mirrors in such a way that they comprise approximately 180 ° of the object to be imaged. In this way, for example, the entire lower part of a finger could be displayed spatially as far as the middle. Of course, another variant proposes to arrange five such mirrors 360 ° on the peripheral region of the object to be imaged. Even with this, very accurate images, in particular spatial images of the object to be recorded, can be generated. Of course you can also complete the variant with five mirrors in 180 ° by adding another five Mirror in the spatially remaining 180 °, so also for a Gesamtumfangsabbildung 360 ° used. Here then a total of 10 mirrors would be provided. The variants described are merely preferred variants. The invention is by no means limited thereto.

Cleverly, adjacent, in particular planar, deflecting mirrors will image the respective finger coat areas onto adjacent sensor areas. As a result, the image composition is much easier afterwards. Of course, it is possible to vary the sequence accordingly, in particular if this is more favorable with regard to the optical radiation path of the information.

Alternatively, it is of course provided to provide a separate sensor for each deflecting mirror instead of a sensor for the plurality of deflecting mirrors. It is then possible to provide smaller, individual sensors, which are then each individually read faster. The readout must be correlated, that is to say clocked or triggered, the image information is then not assembled line by line into an overall picture, first the lines are generated from the individual subregions and then put together afterwards. Such a design increases the speed for reading the images, but also increases the effort required to complete the individual images to form an overall image.

Furthermore, in a preferred variant of the invention, it has been found that the use of light of different wavelengths is used to illuminate the finger or the hand, in order in particular to produce a spatial image of the finger coat surface or of the hand. By the method known as fractal image processing, it is possible to obtain three-dimensional images in a relatively simple manner.

In particular, the use of a two- or multi-colored lighting and the combination with a color camera are favorable. For example, the color camera is located in the center of the surface to be observed. The two light sources are arranged symmetrically in front of and behind the scan plane. If the normal vector of the scanned surface then points into the camera plane, then the camera will see both colors equally due to the symmetrical arrangement. If the surface tilts against a direction, such as in a groove, the reflection angles change and the color components become unbalanced. From the ratio of the two color components can then be concluded on the surface tilt. If the two components are subtracted from one another, flat surface portions disappear, whereas corresponding elevations or depressions with 3-D structure stand out clearly from the background. Such a configuration is mutatis mutandis possible, for example, with the use of a normal lighting or a "white lamp".

With regard to the design of the deflecting mirror, the invention is very variable. It is possible, for example, that a ring or semi-annular deflection mirror is used, which, as will be described further, leads to very good results. However, it is also possible in the same way to use a plane or plane or frustoconical deflecting mirror, wherein in particular the flat or planar deflection mirror is significantly more favorable in its production.

When using the annular or semi-annular deflecting mirror, it is favorable that the arc angle of the ring or Semiringes of 0 ° to 360 °, preferably from 0 ° to 220 °, in particular preferably from 0 ° to 180 °. Viewed in the view, the arc angle describes the angular range in which the deflecting mirror designed in the manner of a ring or half ring is arranged. Since a recording of nail to nail is sought, it is sufficient in certain applications also to realize a semi-annular configuration, in which case, for example, an angle range up to 220 ° is favorable to reliably map the adjacent finger areas. In a somewhat simpler configuration, a semicircular configuration of up to 180 ° may already be sufficient.

But it is also possible to realize, for example, only the arc angle of 60 °, 90 ° or 45 °. In such a case, the deflection mirrors are arranged on the underside of the finger and preferably form these areas. Of course, it is also possible to use different segments smaller arc angle comprehensive deflecting mirror. This can be particularly advantageous in space-critical arrangements.

In an even simpler variant, it is provided that the finger line imaging or recognition system is formed by a separate line sensor.

An essential advantage of the invention lies in the fact that the entire device according to the invention is modular ausgebil¬ det. So it is possible that the line sensor used, for example, itself is modular. However, it is also advantageous that, depending on the equipment desired, the device can then be configured individually with a finger line imaging or recognition system and / or an image sensor, for example for receiving the hand edge or other hand side surfaces. Thus, it is possible to adapt the device to the respective customer requirements in a simple manner, according to a modular system, and to realize. It is also advantageous that, for example, the line sensor, the Fingerlinienabbildungs- or Erkennungsungsanläge or the image sensor or their contact surface are each modular ausge¬ forms, whereby their structure is designed to be low. It is thus possible, for example, to select the arrangement in such a way that different mirrors interact with an imaging optics in the finger line imaging or recognition system.

In a preferred embodiment of the invention, it is provided that an image recording button, in particular on a spreading means, is provided, which serves for the start of recording of the finger or surface line and / or the individual finger jacket surfaces. As a result of the image pickup button proposed according to the invention, the subject ultimately triggers the picking up of the finger or hand lines. The test person has to insert his hand into the device in such a way that the image pickup button is actuated. The image is then taken preferably in the retraction movement of the hand, which then also ensures that the Relativbe¬ movement takes place. This facilitates data processing and increases data security.

According to the invention, it is of course also possible to provide a relative movement of the hand in general relative to the device for use according to the invention, that is to say both the use of the device and the use of the method according to the invention are both in the case of an introduction as well as in a withdrawal movement possible.

The arrangement of the image pickup button is conveniently provided with a spreading means, the arrangement then being chosen so that the image pickup button can not be accidentally actuated but only when the hand is actually fully inserted and, for example, the intermediate area between two fingers on the surface of the spreading agent is applied. Then, for example, the image pickup button is operated. If appropriate, corresponding additional switches or buttons, which are in correlation with one another, can also be provided in order to reliably avoid incorrect operation. The subject is informed by a corresponding acoustic or visual message, then he pulls out his hand and the lines are recorded accordingly.

In addition to an operation of the image pickup button through the intermediate area between two fingers, it is also possible in a further variant of the invention that, for example, the fingertips actuate the image pickup button. In this case, the image pickup button is not on the spreading means.

Furthermore, it is proposed according to the invention that the deflecting mirror is arranged in the vicinity of the spreading means.

The aim of the use of the deflecting mirror is to as fully as possible the fingernail surface, with respect to the arc angle as well as with respect to the length of the finger to image.

The recording of the finger coat surface is also carried out preferably in the withdrawal movement of the hand. If now the Um¬ steering play gel arranged as close to the finger root, it is possible to record the entire finger. Structurally, this means that the deflecting mirror is arranged as close as possible or in the region of the spreading means, since the spreading means will lie in the angular range between two fingers, that is to say the start of the finger root. Therefore, in the sense of the invention, it is already sufficient for the deflecting mirror to be at the same height as the spreading center 1 with respect to the insertion or retraction movement of the hand so as to be in the vicinity.

Furthermore, the object according to the invention is achieved by an embodiment which is used for the simultaneous detection of biometric data from different, for example, at least two different body regions, the detection device being equipped with at least two devices for acquiring biometric data and the device having at least one optically effective detector for recording the surface of body regions. Hier¬ in a first device for receiving a first and a second device for receiving a second body region is provided and the detection arrangement has a spreading device, by which the body regions are spaced so that side shots of the body regions are made possible by the detector. Body regions of interest for capturing biometric data are, in particular, fingerprints, as already explained. As different body areas in the sense of the above definition are meant different Einger a hand, fingers and thumb, or fingers and at least parts of the palm. Very important for a biometric detection arrangement is the detection of the hand, at least up to the part where the fingers open into the palm, ie in the area of the carpal. This fraud attempts are completely doomed to failure, since the arrangement that now both the finger areas, as well as the imaged palmar area can recognize and assign, so that a manipulation is no longer possible.

Among other things, the proposed detection arrangement according to the invention uses the above-described device according to the invention for acquiring biometric data. However, the invention is not limited to this, but it may also interact with devices of a different design. The main advantage of this Ausgestal¬ tion of. Detection arrangement is that it is possible to make by the detector also side shots of the body areas, so for example the side surfaces of the fingers. In particular, the initially proposed embodiment of the device with, for example, a U-like or half-ring-like mirror allows these side surfaces to image quasi in a nail-to-nail recording on the detector. The whole is accompanied by a very space-saving Ausfüh¬ tion, since for each individual finger only a detector bezie¬ hurry to use a camera, such an arrangement is thus correspondingly space-saving feasible. Several devices could be realized side by side without problems, for example to detect two body regions, for example two fingers or even all fingers of a hand, including the thumb, in a detection process.

At the same time, the detection arrangement proposed according to the invention implements at the same time an exact assignment of the respectively recorded images. If, for example, the detection arrangement is designed such that all fingers of one hand can be detected, that is to say sampled or recorded, their arrangement is also fixed by hand. On the An¬ production of a control deduction, which just allows the assignment of the recordings taken by the individual fingers with respect to the whole hand, can be dispensed with. The necessary time for acquiring the biometric data decreases with simultaneous increase of the data security and also with simultaneous reduction of the necessary data processing, since the control deduction is not comparable with the single finger recordings.

In this case, the spreading effect not only has the advantage that the side areas of the male fingers are mapped, the spreading effect also causes the detectors, which are generally slightly spaced from the front end of the fingers, to also reach a correspondingly greater distance from one another. Since the beam paths of the individual fingers to be recorded are oriented at the corresponding spread angle, the Detectors with each other according to the laws of the law of radiation.

In a variant of the invention it is proposed that the hand is placed on the Anord¬ tion for holding with stretched fingers so that all fingers are in a plane, but also between the fingers a sufficient distance ver¬ remains to the lateral image to enable the individual. This is achieved by a spreading device that spreads the fingers of the hand in a defined, naturally pleasant way. As a result of the spreading apart, the areas which otherwise cover one another by the side walls of the fingers are exposed and made accessible for the acquisition process.

In a variant according to the invention, it is provided that the spreading device are designed as stops, in particular as cylindrical stops, which are to be arranged between the body regions, in particular between the fingers of one hand, and the mirror device is below the body region, for example of the fingers , The arrangement is to be understood that the mirrors are arranged below the device, so that the mirror faces the finger or palm. The hand is placed on or in the detection arrangement so that a cylinder is in each case between two fingers. Of course, it is possible to realize a glove-like configuration, whereby it is possible to guide the fingers of a hand even more precisely. Different hand sizes can, for example, as usual with gloves, be taken into account with different device sizes.

Conveniently, it is desirable that the spreading device spread the introduced into their detection device finger of a hand of 10 ° to 20 °, preferably about 15 ° between two causes adjacent fingers. It has been found that such an angular distance is sufficient, in particular the. front fingertip region in sufficient quality in a peripheral region of about 180 °, preferably in particular from fingernail to fingernail.

In a further variant according to the invention, it is also provided for example to use the housing of a ring mirror as part of the spreading device.

For the purposes of the invention, it is equivalent whether the fingers of one hand are introduced into the detection arrangement according to the invention or are placed on them accordingly.

In a further preferred embodiment of the invention it is provided that the detection arrangement has a bearing surface, are provided in the slots or openings with optically transpa¬ renten covers and the mirrors are each arranged in the region of the slot or the recess. The image of the body areas, especially the fingers should be done without contact. Since the space between the fingers is very narrow, the receiving devices can not be provided in this area. In order to protect the sensitive optics from contamination, a corresponding spacing must be provided. This means that appropriate precautions are taken so that, on the one hand, a secure positioning of the mirror around the male body area is possible and, on the other hand, contamination is reliably avoided. For this purpose, it is favorable that the detection arrangement has a bearing surface, are provided in the slots or openings with optically transparent covers and the Spie¬ gel respectively in the region of the slot or the Ver¬ depression are arranged. The optically transparent covers are easy to clean in a simple manner and are correspondingly transparent to the light beams used. By a simple spacing, as is possible, for example, with the arrangement of a slot or a recess, is achieved in the same way.

In a further preferred embodiment of the invention it is provided that the support surface form depressions for receiving fingers or the palm and the arrangement of the wells cause a spreading device. In order to increase the operability of the detection arrangement, it is advantageous to embed the male hand in such a way that it is optimally guided. This is conveniently achieved by a corresponding trough-like design of the support surface. Similar to the negative impression of a hand, the support surface has a corresponding configuration, which of course can also act as a spreading device, as this also a corresponding leadership of the fingers is possible. In this case, this trough-like configuration of the support surface alone already cause a spread or be provided in addition to other Spreizvor¬ directions.

In a further preferred variant of the invention, it is provided that two devices share one objective. Favorably, these are two adjacent devices. Since the available space in the detection arrangement according to the invention is very narrow, so it should be detected with a device as possible all fingers including the thumb of both hands of a student, such a proposal achieves a corresponding space savings, since the number of necessary lenses, the yes according to require space, Reduzier¬ bar is. For example, it is envisaged to use a double objective which can be used for two or more detectors. These are then focused individually.

It is favorable that a separate, movable sensor head is provided for each finger and adjacent sensor heads respectively are movable in opposite directions. In a variant of the invention has already been described, that it is favorable that the detector with respect to the axis defined by the longitudinal extension of the body is located in front of the body region, transferred to the application of the finger, this means that the (idealized) longitudinal axis of the cylindrical finger in its extension forward, the hand averted, carries the detector. In order to calibrate the optics once, it is favorable to integrate all the optical elements, that is to say the mirror, the objective and the detector, in a sensor head, since a relative movement is required for scanning the entire finger surface, this is achieved by the sensor head as a whole , If all the sensor heads are oriented in the same direction in front of the respective fingers, a space problem can arise even with a corresponding spread of the fingers. It is favorable if an inverted arrangement is selected for one or the other sensor head, such that the detector is not in front of the finger but, for example, in the area below the palm of the hand. This can be realized in a simple manner by simple conversion or otherwise oriented mirrors. Thus, the area below the palm can be used for the arrangement of sensor heads.

Of course, the invention also provides that all mirrors are arranged under the hand to be imaged. This represents a further preferred variant of the invention.

In a preferred variant of the invention, it is provided that a separate, movable sensor head is provided for each finger and each sensor head is movable longitudinally, in particular in the direction of the longitudinal extension of the respective finger. It is already sufficient here for a mirror which detects the circumferential line of the body region or finger to be moved in the axial direction of the cylinder-like finger. But within the meaning of the invention it is also possible, and this also applies to the device used in the detection arrangement to the same extent that the mirror images a parallel to the longitudinal axis surface line and in the rest of the mirror or the sensor head (depending on the configuration) moves off the jacket region on a radial path. This too is the subject of the invention.

In particular, if a movement of the sensor head or the mirror is provided as a relative movement, it is favorable - to provide for a Festleganordnung the hand and / or the individual fingers on or in the detection arrangement. This makes it possible to accurately position the male body areas and to achieve the sharpest possible image.

In order to further optimize the time required to hold the hand or finger lines, a detection device is proposed, which serves for receiving the finger and hand lines of a subject, as described by a double, preferably mirrored arrangement of two devices , consists. Such a detection device is characterized by a very simple and therefore cost-effective Auf¬ construction while we significantly reduces the detection time by the simultaneous detection of both hands. The waiting time for the subjects, for example, with appropriate Zugang¬ controls, decreases accordingly.

The object according to the invention is also achieved by a method for the acquisition of biometric data with characteristics described below.

In the methods known in the prior art, the individual photos taken by a plurality of cameras / detectors are combined in the image processing corresponding to a three-dimensional overall image. As a rule, several cameras or detectors are used to simultaneously which angles are taken to the body area. In this case, an exact division of the angular segment detected by the respective detector is important in order to obtain an exact three-dimensional image especially in the overlap region, ie in the boundary region of the individual images, which is optionally detected by the first or a second detector aim. The geometric conditions are therefore correspondingly complicated and therefore prone to failure. Under certain circumstances, the recording of a series of images simultaneously with a plurality of detectors is not a safe procedure to achieve a complete image of the ideally cylindrical Mantel¬ surface of a finger.

At this point it is emphasized again that it is not only about the recording of fingerprints, but both the inventive method and the device according to the invention can be used in the same way for any body area. In particular, the invention contributes to the fact that non-planar body areas, such as just the finger, or the palm or a part thereof, reliable by the invention, can be detected by imaging technology.

On the basis of previously described problems in the prior art in image processing, it is further proposed according to the invention for a detector to record at least one image of a first subarea of the surface of a body region to be detected, after which a relative movement takes place between the detector and the body region, after which the detector at least takes an image of a second partial surface of the surface of the body region to be detected.

A film is almost taken over the surface of the body area by the detector. This film consists of a large number of individual images, for example in the axial direction of a finger. Of course, the image acquisition Frequency selected so that at least one image per minimum width of the mirror (which is optionally less than the actual Liche, physical width of the mirror) is taken from the surface. However, this is no problem with modern high-performance cameras or detectors. In particular, a large number of images which also overlap one another are thus available which make image processing easily feasible.

In this case, such a high number of overlapping upper substantially redundant images is advantageously generated, so that, for example, error calculations in image processing or correlation calculations to optimize the image are possible.

The inventive method initially extends to the fact that the detector performs a relative movement with respect to the male surface of the body region. In the same way, however, the object stated at the outset is also solved by a method for acquiring biometric data, wherein a sensor head consisting of a detector and an imaging optics receives at least one image of a first partial area of the surface of a body region to be detected, then a relative movement between the body region and the sensor head or parts of the sensor head, and thereafter the sensor head receives at least one image of a second partial surface of the surface of the body region to be detected.

In the upper part of this application is in particular beschrie¬ ben that a mirror, in a preferred variant, a Halb¬ ring mirror or a ring mirror performs a relative movement with respect to the surface of the body region. According to a variant of the invention, it does not matter that the detector is also associated with the mirror or the optics. is moved, so the optical conditions remain unchanged during Auf¬ acquisition. This ^"may be otherwise achieved within the meaning of the invention. The invention therefore also includes a solution in which the sensor head consisting gate of a Detek¬ and an imaging optical system or any part of the Sensor¬ head, so, for example, only the mirror a Performs relative movement.

The above-described advantages of such a procedure are also obtained in this inventive method.

Conveniently, the relative movement is parallel or substantially parallel to the longitudinal extension of the body region. As already described in connection with the device, the relative movement can be derived either from the movement of the body region, ie the finger or the hand or from the movement of the optical elements (detector, sensor head and so on).

In this context, it should be noted in particular that all features and properties described in relation to the device but also methods are analogously also applicable with respect to the formulation of the method according to the invention and can be used according to the invention and disclosed as mit¬. The same also applies in the opposite direction, that is, only in terms of the method mentioned, structural so device-like features can also be considered and claimed within the scope of the device claims and also count to the invention and to the disclosure.

The method according to the invention is designed to generate a multiplicity of images, it being provided according to the invention that the detector correlates the images recorded by the partial surfaces and stores them in a sequence in a memory. This correlation is especially important for the Image of the recorded surface important.

An advantage for the subsequent image processing is that at least the images of the first and the second partial surface overlap. Between the recording of the first and the second partial surface is a relative movement. So, another area of the surface is displayed. In order to produce an interruption-free image from these individual images, it is advantageous to provide a corresponding overlapping region, by means of which, in particular, the exact connection of the individual partial images with one another, but also clues for the equalization or error calculation and so forth can be derived.

With regard to the method according to the invention, it is favorable that in the beam path between the body region and the detector a partially arched or curved mirror is provided, optionally as part of the imaging optics, and the detector takes an image of the curved partial surface. From this inventive proposal results that ring-like or U-like curved images are thrown onto the detector. In this respect, of course, the design of the detector to focus on this, in particular, the processing can be optimized in this respect, since only in a certain, due to the imaging optics known area with an image is to be expected first. By such a consideration of the configuration of the device in the method, the image processing is to be accelerated accordingly.

The method according to the invention also comprises an image processing module which combines the images stored in the memory into a three-dimensional image of the detected surfaces. This is done by known methods of image processing. This image processing achieves, for example, the generation of an image of the lateral surface of a Fingers, for example, a three-dimensional image. In a further step, it is then possible to obtain a "unrolled", planar representation from this image information. In this way, a data set of biometric data is generated, for example with already existing fingerprints made with printer black Comparable and also data-technically detectable.

In this connection, the image processing module optionally also provides an equalization of the image, which is designed as an overall image and / or also of the individual images taken by the partial surfaces.

The object stated at the outset is also achieved by a method for receiving finger or hand lines, wherein the recording of the finger coat surface takes place simultaneously with the recording of the lines of the hand. By this simultaneous sequence of recordings, the necessary recording time, ie the time during which the respective tester has to dwell on the device, significantly reduced.

The recordings are spatially separated so that the finger coat surface in the front region preferably by the described Fingerlinienabbildungs- or Erkennungsungsanläge, and the hand lines are detected by another sensor, for example, the line sensor also described. Of course, the finger line imaging or recognition system also takes up finger lines of the finger coat surface, since the finger lines or the hand lines are person-identifying.

It is expediently provided that a comparison, a check or an assignment of the recorded finger jacket surfaces to the respectively recorded finger bottoms of the fingers takes place. As a result, the data security or the correctness and authenticity of the data is determined. speaking increased, which of course also increases the quality of the information accordingly. In particular, it is also provided, if there is a dithering motion of the hand, to perform an image correction step before, during or after the control step of the method. This image correction step consists of an algorithm for eliminating the dithering motion, as used in photography, for example. It should be noted that the image processing of course additionally generates a complete picture from the recorded film of the finger coat surfaces.

In a preferred embodiment of the method, it is provided that, particularly when color sensors or color cameras are used, a spatial image of the finger jacket surface or of the hand is generated. Thus, for example, the sensor of the image recording unit of the finger line imaging or recognition system or even the line sensor for receiving the underside of the hand is designed as a color sensor in order to generate correspondingly colored images. With the aid of image processing or processing, utilizing the effect of the fractal light (as described above, to which reference is made in the method according to the invention), it is now possible to calculate a three-dimensional image by the image information obtained in an arbitrarily planar manner. In a suitable manner, the information of the differently color-sensitive regions of the sensor is calculated and evaluated. Thus, it is possible to obtain a three-dimensional image with very little effort, for example using only planar mirrors and using the method described above.

The invention is shown schematically in the drawing, in which: FIG. 1 shows a schematic overview of the method according to the invention, including the device according to the invention and FIG

2 shows a schematic view of the detection arrangement according to the invention.

FIG. 3 shows a plan view of an embodiment of the device according to the invention; FIG.

4 shows a side view of a device according to the invention;

Fig. 5: in an overview view the

Mode of operation of the finger line imaging or recognition apparatus according to a device according to the invention;

Fig. 6: a plan view of another

Embodiment of erfindungsge¬ MAESSEN device;

FIG. 7 shows a side view of a variant of the finger line imaging or detection apparatuses according to a device according to the invention and FIG

8 shows a plan view according to FIG. 7;

FIGS. 9 and 10 variants of mirror arrangements according to the invention. FIG. 1 schematically illustrates the mode of operation of the device according to the invention and of the method according to the invention.

The invention relates to a device for acquiring biometric data, for example fingerprints, the device having an optically effective detector 101 for recording surfaces of body regions 103, for example of a finger 1030. An essential component of the invention is that a mirror 1020 is provided in the beam path 107 between the surface 1033 and the detector 101. In the embodiment shown here, the mirror 1020 has a finite width. It is ring-shaped, so surrounds the finger 1030 and the body portion 103 in full. It has a conical shape, whereby the beam path 107 results as indicated.

With 105 lighting is indicated. It consists in this embodiment of one or more LEDs 1050, whose radiated light is concentrated by an illumination optical system 1051 on the male surface 1033. The beam path from the illumination to the surface to be recorded is marked 1070.

The light reflected from the surface 1033 is imaged along the beam path 1072 in a first beam path 1071 from the ring mirror 1020 due to the conical configuration forward with respect to the longitudinal extent of the body portion 103 on the detector located in front of the body portion 103.

The finger 1030 to be received in this embodiment is idealized as a cylinder 1031 to simplify. The cylinder 1031 has a longitudinal axis 1034, which is shown in the upper area of FIG. 1 as an alternative. The detector 101 is in this regard on the extension of the longitudinal axis 1034, in front of the finger.

In the schematic sketch shown here, the special imaging optics, the objective, which is required for the detector 101, are not shown in detail. It is for example integrated in the detector 101 and not separately marked.

Due to the width of the mirror 102, a circumferential segment 1032 of the surface 1033 is imaged onto the detector 101. This takes place at a first position X _n .

Below the representation of the finger in the annular mirror 1020, the idealized cylinder 1031 is indicated, with 1032 ', the cylindrical surface is indicated. Due to the conical configuration of the mirror 102, a ring-like image 1032 "is generated by this peripheral segment 1032 'in the detector. This image is designated by the reference numeral 106 and is located to the left of the idealized cylinder 1031. In the image 106, which is for example the image recording plane of the detector 101, the cylindrical surface 1032, 1032 'is imaged into an annular structure 1032' '.

It is important that with respect to the relative position X _n of mirror 102 to the body portion 103 clearly an image B _{n is} to be assigned. It does not depend on the exact measurement, but it is sufficient to capture this correlation.

The image shown in 1032 as a ring in the image 106 ^'• leg-holding traction think ultimately information on the three-dimensional configuration of the recorded surface 1,033th

Idealisierterweise this information is stored planar, for example, as is indicated as the next step Verarbeitungs¬ and overall by reference numeral 1032 ^'•' is marked. But it is only an illustration aid, of course, the three-dimensional data are also stored, managed and charged three-dimensional.

According to the inventive method, a first image B _{n is} generated from a first position X _n and stored by the detector in a memory.

There then takes place a relative movement 104, preferably parallel or substantially parallel to the longitudinal extension or longitudinal axis 1034 of the body region 103 or of the finger 1030.

At the point X _n + i a second field B _{n +} ^ is taken and also loaded from the detector into the memory to another memory location. The recording speed and the width of the mirror are matched so that there is an overlap region 1060 of the individual images in order to line up the respective individual images B _n , B _{n +} 1, B _{n +} 2 and so on. Due to the known width of the mirror and the imaging conditions, this also produces a scaled-up, ie true-to-scale image, which can be correspondingly taken into account in the calculation. With the arrow K, the correlation between the relative movement 104, which leads to the various positions X _n and X _n + i, etc., on the one hand, and the reference to the respective images B _n , ^B n + 1, ^etc., on the other hand ensured.

In the downstream image processing module again a total image, in particular a three-dimensional image of the recorded surface 1033 is er¬ testifies and evaluated and made available from the individual images B _j _.

FIG. 2 schematically shows the detection arrangement 108 according to the invention. The essential advantage of this detection arrangement according to the invention is that on the support surface 1081 all fingers 1030 of both hands 1035, 1035 ^■ can be placed and for each finger, including the thumb, a Vorrich¬ device 109, corresponding to Figure 1, is provided. For the sake of simplicity, the device 109 is formed in each case by the mirror 102, the objective 1010 and the detector 1.01, the exact structure corresponds, for example, to the arrangement shown in the upper area in FIG.

The essential advantage of this invention is, in particular, that a very space-saving arrangement of the devices 109 is possible, whereby a simultaneous recording of all fingers of the hands of a test person is possible. This results in a significant process acceleration when capturing these biometric data.

Since the mirror 102 is formed in the example U-like 21 shown in FIG. 2, image acquisition from nail to nail is achieved, which is generally sufficient for data acquisition. In order to achieve in particular the side area, ie the finger area up to the nail, it is favorable to provide a spreading device 1080. This is formed, for example, by cylindrical stops 1082 which lie between the fingers at the root area when the hand 1035 is engaged or engaged on the detection assembly 108.

The mode of operation of the invention is to be explained in particular in conjunction with FIGS. 3 and 4, the hand or the fingers not being shown in FIG. 3. However, the figure shows that a hand can be inserted there.

According to the invention, a device for receiving the finger or hand lines is proposed, wherein the device has a bearing surface 1 for the hand 2 or the fingers 20. In the contact area 1 is a line sensor 3 is arranged. It is easy to see that the line sensor 3 formed here is wider than the hand 2.

In order to avoid contamination of the line sensor 3, it is provided that a groove 11 is provided in the bearing surface 1 and thus there is a spacing between the palm and the hand-facing surface of the line sensor 3.

FIG. 3 shows that the device is suitable both for detecting the finger or hand lines of a right and a left palm. For this purpose, the device has more than five, namely in the representation six finger line recognition arrangements. The advantage is clearly apparent, since instead of another five additional finger line recognition arrangements for the other hand, only a single additional one is needed here. The invention thus contains a not insignificant savings potential. The finger line recognition arrangement shown on the left side of the illustration is intended, for example, for laying on the right hand, with the leftmost finger line recognition arrangement being intended for the right thumb. The finger line recognition arrangement on the right side is for detecting the thumb of the left hand when it is inserted. In order to ensure trouble-free insertion of the hand, the contact surfaces 6 on the left and right sides are designed to be movable in the direction of the double arrows a, b. The contact surfaces 6 are left and right, so that both surfaces can be withdrawn to push the hand problem¬ los. For this purpose, the contact surfaces 6 are preferably provided with adjusting means, for example a spring, in order to automatically ensure retraction. Inner contact surfaces 6/1 ensure optimum insertion or positioning of the fingers. The finger line recognition arrangements far left outside and far right outside still carry detection sensors 9, by means of which it is detected whether a left or a right hand is inserted. In Fig. 3 it is shown that the length of the support surface 1 is dimensioned so that the entire hand can be placed. An essential advantage of the invention lies in the fact that, in one step, a large number of biometric data, namely the hand and finger lines, are obtained without confusion. In this case, relatively easy-to-obtain data, namely the finger or hand lines located on the underside of the hand, but also simultaneously information of the finger-coat surface that is relatively complex to be acquired, are recorded. In this case, the entire device builds very short, this is achieved in particular by the fact that the Linien¬ sensor 3 in relation to the length of the hand 2 has a much smaller width. To accommodate the entire underside of the hand through the line sensor 3, a relative movement 4 is necessary. This relative movement 4 is achieved in the embodiment of the invention realized here by a retraction movement 4 of the hand 2. Thus, the arrow in Fig. 2 is indicated. Of course, it is also possible to design the line sensor 3 in the manner of a beam and starting from the wrist, moving forwards to form a receptacle. Both variants are part of the invention, although the variant with fixed line sensor 3 offers advantages, since no additional drives are to be formed and the probationer must move his hand anyway.

In order to achieve the most precise possible guidance of the male hand 2, various different means are provided. On the one hand, abutment surfaces 6 are provided which guide the hand side 21 for the example. Such contact surfaces 6 are located on the left and right hand so that the hand is guided between da¬. The thumb spreads to the left from the left contact surface 6 (see Fig. 3).

The abutment surface 6 is formed, for example, as a block or strip, and in particular, for example, with an image sensor 60 equipped to gain more information about the edge of the hand. The image sensor 60, for example, is slightly set back from the contact surface in order to avoid contamination. The image sensor 60 extends, for example, at right angles above the support surface 1.

Furthermore, it is possible, for example, to provide contact contacts or sensors in the contact surface 6 in order to detect the presence of a hand to be picked up. By triggering this sensor, it is possible to initiate the recording process.

Furthermore, the invention provides that a plurality of spreading means 5 are provided which, when the hand 2 is inserted into the device, extend into the intermediate space between the individual fingers 20. At the same time they limit the insertion of the hand 2 in the device.

In the front region of the device, in particular in the region of the fingers 20, the finger line imaging or identification device 7 is arranged (see FIG. 4). It serves to receive the lateral surface of the finger 2. The special embodiment of this arrangement is shown in particular in FIG.

In Fig. 3 it is shown that for each of the fingers 20 per a Fingerlinienabbildungs- or detection system 7 is maintained. This makes it possible to record in a method step all fingers and possibly also the lines of the thumb, which is insofar also to be understood as fingers.

In order to avoid erroneous image recordings, the bearing surface 1 is excluded in the area of the finger line imaging or recognition system 7 so as not to have soiled bearing surfaces. The mode of operation of the finger jacket surface imaging or recognition arrangement 7 results in particular from FIG. 5, but it also results from the international patent application PCT-EP 2005-001230. As already stated, reference is made to the content of this international patent application in its entirety.

By the relative movement 4 of the hand 2 of the finger 2 is withdrawn through the annular deflecting mirror 70. A lighting 72 is provided which illuminates the lateral surface of the finger. The light radiated therefrom is projected onto an image pickup unit 73 via the deflection mirror 70 and an imaging optics 71 (see FIG.

Ideally, a finger 20 corresponds to a cylinder. The deflecting mirror 70 is frustoconical and forms a sleeve-like lateral surface in a circular disk. The further image processing is computer-controlled.

The retraction movement 4 ultimately accommodates a film over the surface of the lateral surface through the image recording unit 73. This film is then converted to a complete image by electronic image processing.

An essential advantage of the invention lies in particular, also in that at the same time complex data, such as the lateral surface of the finger, as well as the relatively easy to win the underside of the hand or finger bottom are obtained with the jewei¬ time lines.

The test person puts his hand 2 into the device according to the invention, the fingers 2 are spread by the spreading means 5 in such a way that the individual fingers 20 are assigned to the respective finger line imaging or recognition systems 7. For example, on a spreading means 5 is a Image pickup 8 is provided. This button acts as a switch and actuates the automatic recording system. If the test person now withdraws his hand, the lateral surface of each finger is picked up by the finger line imaging or detection means 7 of each finger and simultaneously or immediately, but in any case during the withdrawal movement 4, the underside of the hand recorded by the line sensor 3. In any case, page images are alternatively still taken by the image sensors 60. The recording of these two verschie¬ which image groups is carried out simultaneously, of course, first with respect to the fingers, the finger coat surface is recorded and thereafter, when the finger is pulled out correspondingly far, the line sensor as a sensor, the finger lines of Finger¬ underside receives. The arrangement is chosen so that the line sensor 3 makes an overall picture, in particular to determine the geometric position of the various fingers so as to be manipulation or confusion. The goal is, for example, to be able to reliably allocate the data field "little finger" to the leftmost image. For this purpose, according to the device according to the invention further provided that a comparison, a check or an assignment of the recorded finger coat surfaces is carried out to the respective recorded finger bottoms of the fingers. In addition, an entire handline image is obtained, which is also interesting for biometric data acquisition.

It should be noted that the relative length for determining whether it is the left or right hand, already sufficient. It has been proven that under no circumstances is the little finger longer than the middle finger. In this respect, it can already be determined on the basis of the finger length whether it is the left or the right hand. Even cheaper, however, is the variant of the invention already mentioned in the description, according to which at least part of the palm of the hand, for example, is taken up to the area of the carpal To exclude manipulation and to be able to reliably recognize whether it is the left or right hand. This variant is even more favorable since, in addition to the finger line sheath flaps, one also obtains at least a part of the palm or of the hand-line image. Manipulations are completely eliminated in this way.

FIG. 6 shows a further variant according to the invention. The hand 2 is introduced into the device, the deflecting mirrors 70 ', 70 "' are designed, for example, as annular deflecting mirrors, It should be noted that the deflecting mirror 70" of the middle finger 20 "is slightly spaced from the root of the finger It does not form a straight line with its adjacent, further deflection mirror, the mirror 70 'of the adjacent finger line imaging or detection devices 7' is somewhat offset, it is indicated that the deflection mirrors 70 ', 70 "are significantly larger than the diameter of the finger 20 ', 20 ". In order to avoid a collision of the adjacent deflecting mirrors 70 ', 70 ", the deflecting mirrors are offset, in particular with regard to the retraction movement 4. This saves space.

In Fig. I ₁ 8 a further embodiment of a Fingerlinien¬ imaging or detection system according to the invention is shown. FIG. 7 does not completely correspond to a side view according to FIG. 8; for better clarity, the mirror 702 is omitted in the view according to FIG.

In contrast to the embodiment according to FIG. 4, for example, a plurality of individual deflecting mirrors 701, 702, 703, 704, 705 are provided in the variant according to FIGS. 7, 8, which are arranged along the circumference of the finger 2 in strip-like fashion.

In contrast to the variant according to FIG. 4, in which an annular or semi-annular deflecting mirror 70 is used, in each case planar individual, small deflecting mirrors are formed 701, 702, 703, 704 and 705 used. Although these are drawn here at a distance from each other, in fact they lie butt against one another in order to give a complete image of the finger jacket surface. For clarity, they were shown spaced. In this case, detection always takes place with corresponding coverage areas, ie not adjacent to one another, but covering in regions, such that adjacent areas always have common overlap areas.

Such an embodiment results in significantly lower costs for the creation of such a deflecting mirror 70, since these can each be configured as individual, in particular planar or planar deflecting mirrors.

Another advantage of the invention is that the Bild¬ recording unit 73 in the Ausführungsbei¬ shown here game is designed as a line or line sensor and provides a quasi one-dimensional image. The drawing in Fig. 8 is very schematic. It is expediently provided that the sensor used here is a color sensor or a color camera in order, as will be described later, to use the effect of the fractal light, in particular for producing a three-dimensional image of the finger jacket surface.

The arrangement is now selected such that the left-hand area of the finger jacket surface (according to FIG. 8) of the finger 2 is imaged via the extremely left-hand deflection mirror 701 via the optical path 791 onto the area 731 of the sensor 73. Thus, in each case different imaging ranges are defined, wherein it is particularly favorable that the different lateral surface areas are imaged on a line sensor 73. Since the individual mirrors 701 to 705 abut each other, a complete image is achieved. Thus, for example, the middle, lower region of the finger 2 is imaged via the narrow path 793 via the deflection mirror 703 onto the middle region 733 of the image recording unit 73. The individual, respectively adjacent regions, which image the areas of the finger jacket surfaces, are marked 731 to 735. It should be emphasized that the arrangement in Fig. 6 is very schematic.

The selected arrangement is such that the Bildaufnahmeein¬ unit 73 with respect to the retraction movement 4 is offset from the arrangement of the deflection mirror 701 to 705 (see FIG. 7). Thus, it is possible to realize a complete image of the lateral surface of the finger 2 on a line sensor as the image pickup unit 73.

Favorable production costs for the individual deflecting mirrors 701 to 705 are combined here with a simple and, in particular, very fast readable image recording unit 73, if this is designed as a line sensor.

Furthermore, it is proposed according to the invention that the image recording unit 73 in the exemplary embodiment shown in FIG. 7 or FIG. 8 is designed in particular as a color sensor. The arrangement can again be either a two-dimensional sensor or a line sensor. However, the use of a color sensor as the image recording unit 73 makes it possible to calculate a three-dimensional image in the image processing in a simple manner after the effect of the fractal light.

According to an advantageous embodiment of the invention, it is provided to provide a color sensor for the spectroscopic detection and evaluation of the object. This is particularly advantageous because it allows the evaluation of the object in the context of a live recognition function. This is particularly important to avoid manipulating a biometric detection system with artificial models.

FIGS. 9 and 10 show models of how an annular arrangement of planar mirrors around the male body region, here a fingertip 2, receives and images the respective body region 2 from different angles of view. It should be noted that the in Fig. 9 angordneten mirror 701 to 705 include the range of 360 ° and thus able to fully map the finger 2, while in Fig. 10, the sufficiently regarded embodiment variant with 5 mirrors a range of 180 ° includes. It should be noted in particular that the mapping and / or detection of the respective areas are each overlapping, so that each area for the adjacent area each have a covering area together. This means that, for example, the mirrors 701, 702 have a common adjacent area of the finger, which then project a three-dimensional image in the form of an exact three-D model. About the mirror while the areas are initially detected only pictorially. A conversion into digital data can take place, for example, in the sensor or detector, which then forwards this data to a computer. Only there is the computer-aided evaluation by means of appropriate software. This software then compares the determined images converted into digital data with the data of the test person (s) stored in the computer. With the device according to the invention or the method according to the invention, it is therefore possible to first generate an exact image in the form of a three-dimensional image in a first phase and to detect or evaluate it by means of software only in a second phase. This makes it possible to carry out an evaluation on the basis of the images, as well as computer-assisted this evaluation in a more comfortable variant of the invention make. It is particularly noted again that the detected, overlapping areas are not joined together in the form of a panoramic image, but that actually on the basis of overlapping areas, a three-dimensional, accurate three-D model is generated.

In the context of this application, the applicant or the Applicant reserves the right to claim independent protection for the various aspects of the invention described here. In particular, the applicant reserves the right to provide independent protection for the article according to FIGS. 7, 8, 9, 10 or for the use of the effect of the frakal light to produce a three-dimensional image of a finger coat surface, for example as part of a Divisional application, search. In this case, the applicant reserves the right in particular to independently raise the abovementioned features to the subject of independent applications and to claim and understand them independently of the subject-matter described, for example, in claim 1. Nevertheless, the Applicant also reserves the right to consider and describe all other features in a suitable manner, particularly for the avoidance of unnecessary repetition, as disclosed herein. In particular, the Applicant reserves the right to combine the features in any combination with each other, these are also disclosed with.

The claims now filed with the application and later are attempts to formulate without prejudice to the attainment of further protection.

If, on closer examination, in particular also of the relevant prior art, it appears that one or the other feature is favorable for the purpose of the invention, but not decisive, then of course already now seeking a formulation that no longer has such a feature, especially in the main claim.

The references cited in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective subclaim. However, these are not to be understood as a waiver of obtaining independent, objective protection for the features of the dependent claims.

Features that have hitherto been disclosed only in the description may be claimed in the course of the method as of essential importance to the invention, for example to distinguish from the prior art.

Features that have been disclosed only in the description, or even individual features from claims that include a plurality of Merk¬ can be taken over at any time to distinguish from the prior art in the first claim, even if such features in context have been mentioned with other features or achieve particularly favorable results in connection with other features.

Claims

claims:

1. Apparatus for acquiring biometric data, in particular fingerprints, wherein the apparatus has an optically effective detector for receiving the surface of body areas and a light source for the body region to be scanned, characterized gekenn¬ characterized in that in the beam path (107) between the Licht¬ source or the surface (1033) and the detector (101) at least, a mirror (102) is provided.

2. Apparatus according to claim 1, characterized in that

Parts of the mirror or mirrors (102) between the areas of the body to be picked up, e.g. or of the finger (s), or around it, are arranged in such a way that at least a large part of the body region is imaged or detected.

3. Device according to one or both of the preceding Claims, characterized in that the mirror or mirrors are arranged in such a way that at least a large area of the body region to be imaged or detected is detected from a plurality of viewing angles such that an exact three-dimensional image is generated as a 3-D module or is calculated.

4. Device according to one or more of the preceding claims, characterized in that the mirror (102) arched or curved, in particular ü-like (1021) or semi-annular, is formed.

5. Device according to one or more of the preceding claims, characterized in that the mirror (102) is designed as a ring mirror (1020).

6. Device according to one or more of the preceding claims, characterized by a conical shape of the mirror (102).

7. Device according to one or more of the preceding claims, characterized in that the part (1032) of the surface (1033) which can be scanned by the mirror (102) is small in relation to the total surface (1033) of the body part to be picked up (1033). 103).

8. The device according to one or more of the preceding claims, characterized in that the light source for the scanned body region (103) an artificial lighting (105) or natural light source is provided.

9. Device according to one or more of the preceding claims, characterized in that a green light source (green light) is provided as illumination (105).

10. Device according to one or more of the preceding claims, characterized in that the illumination (105) is arranged below the body region (103).

11. The device according to one or more of the preceding claims, characterized in that the illumination (105) strip-like, in particular as a LED array (1050) is formed.

12. The device according to one or more of the preceding claims, characterized by a semipermeable, designed as a partial mirror mirror (102) for the reflection of the light of a lighting (105) in the beam path (107).

13. The device according to one or more of the preceding claims, characterized in that the Strahlenver¬ run between mirror (102) and detector (101) is parallel or acute angle to the longitudinal extension (1034) of the aufzu¬ to be taken up body portion (103).,

14. The device according to one or more of the preceding claims, characterized in that in the beam path (107) between the surface (1033) and the detector (101), in particular between the mirror (102) and detector (101) an objective (1.010) is provided is.

15. The device according to one or more of the preceding claims, characterized in that the magnification of the objective is selected so that the body aufzulö¬ sende Ortselement is mapped at least to one element (pixel) of the detector.

16. Device according to one or more of the preceding claims, characterized by a telecentric Ab¬ education.

17. The device according to one or more of the preceding claims, characterized by a front lens of the object, which speaks at least the size of the object ent.

18. Device according to one or more of the preceding claims, characterized by a rectangular front lens.

19. Device according to one or more of the preceding claims, characterized by a relative movement (104) between the body region (103) and at least the mirror (102).

20. Device according to one or more of the preceding claims, characterized by a relative movement (104) parallel or substantially parallel to the longitudinal extent (1034) of the male body region (103).

21. Device according to one or more of the preceding claims, characterized in that at least the mirror (102) is stationary during the recording and the relative movement (104) from the movement of the body portion (103) is derived.

22. Device according to one or more of the preceding claims, characterized by a movement of the mirror (102) at least during the reception of the body region (103).

23. Device according to one or more of the preceding claims, characterized in that the detector (101) and mirror (102) and optionally the lens are combined as a sensor head and the sensor head is movable, in particular linearly movable.

24. Device according to one or more of the preceding claims, characterized by a contactless scanning of the body region (103).

25. Device according to one or more of the preceding claims, characterized in that the device carries more than five, in particular six Fingerlinienerkennungs- arrangements.

26. Device according to one or more of the preceding claims, characterized in that in the Vor¬ direction a first part of the Fingerlinienerkennungsan- order for detecting the finger lines of the first hand and a second part of the finger line recognition arrangement for detecting the finger lines of the second hand is used.

27. The device according to one or more of the preceding claims, characterized in that one or more finger line recognition arrangements is provided both in detecting the finger lines of the first and the second hand / are.

28. The device according to one or more of the preceding claims, characterized in that each one Erkennungs¬ sensor (9), in particular in the region of the Fingerlinienan- arrangement of the left or right thumb for detecting the first or second hand is provided.

29. Device according to one or more of the preceding claims, characterized in that a bearing surface (1) for the hand (2) or the fingers (20) and in the bearing surface (1) over the entire width of the hand (2 ) extending line sensor (3) is provided.

30. Device according to one or more of the preceding claims, characterized in that the hand (2) facing surface of the line sensor (3) relative to the support surface (1) is reset.

31. The device according to one or more of the preceding claims, characterized in that the length of the support surface (1) is dimensioned so that the entire hand (2) can be placed.

32. Device according to one or more of the preceding claims, characterized by a small width of the line sensor (3) in relation to the length of the hand (2).

33. Device according to one or more of the preceding claims, characterized by a relative movement, in particular a retraction movement (4) of the hand (2) with respect to the line sensor (3) for receiving the hand or finger lines.

34. Device according to one or more of the preceding claims, characterized by a plurality of spreading center (5) for the fingers (20) which are arranged on, on or above the support surface (1).

35. Device according to one or more of the preceding claims, characterized by at least one lateral contact surface (6) for guiding the hand side or Hand¬ edge.

36. Device according to one or more of the preceding claims, characterized in that the abutment surface (6) is equipped with an image sensor (60).

37. Device according to one or more of the preceding Claims, characterized in that the image sensor (60) with respect to the support surface (6) protrudes.

38. Device according to one or more of the preceding claims, characterized in that the hand (2) is guided laterally depending on a contact surface (6).

39. Device according to one or more of the preceding claims, characterized by a lateral, in particular special angular or rectangular mobility of the contact surfaces (6) for the withdrawal movement (4) of the hand.

40. Device according to one or more of the preceding claims, characterized in that a adjusting means, for example a spring for the movable contact surface

(6) is provided.

41. Device according to one or more of the preceding claims, characterized in that the device comprises at least one finger jacket surface recognition arrangement

(7) owns.

42. Device according to one or more of the preceding claims, characterized in that for each finger (20) has its own finger coat surface recognition arrangement (7) is provided.

43. Device according to one or more of the preceding claims, characterized in that the finger surface area recognition arrangement (7) is formed from a deflection mirror (70) and optionally an imaging optics (71) and an image recording unit (73).

44. Device according to one or more of the preceding claims, characterized in that the deflection mirror (70 ', 70 ") adjacent Fingerermantelflächen-Erkennungs¬ arrangements (7 ¹ , 7'') offset from one another.

45. Device according to one or more of the preceding claims, characterized in that the finger cover area recognition arrangement (7) comprises a plurality of deflection mirrors (701, 702, 703, 704, 705) and each deflection mirror (701, 702, 703, 704, 705) images individual areas of the finger jacket surface.

46. Device according to one or more of the preceding claims, characterized in that the Bildaufnahme¬ unit (73) is a flat image sensor or a Zeilen¬ sensor.

47. Device according to one or more of the preceding claims, characterized in that the Bildaufnahme¬ unit (73) or the line sensor (3) is a color camera.

48. Device according to one or more of the preceding claims, characterized in that the one of a plurality of deflecting mirrors (701, 702, 703, 704, 705) imaged finger jacket surfaces each of a region (731, 732, 733, 734, 735) of the Sensor, preferably of the line sensor (73) is received.

49. Device according to one or more of the preceding claims, characterized in that adjacent deflection mirrors (701, 702, 703, 704, 705) image the finger coat areas onto adjacent sensor areas (731, 732, 733, 734, 735).

50. Device according to one or more of the preceding Claims, characterized in that a separate sensor is provided for each deflecting mirror (701, 702, 703, 704, 705).

51. Device according to one or more of the preceding claims, characterized by the use of light of different wavelengths for illuminating the finger or the hand, in particular for generating a spatial image of the finger coat surface bezie¬ as the hand on the line sensor or the image pickup unit (73).

52. Device according to one or more of the preceding claims, characterized in that the deflecting mirror (70) ring-shaped or semi-annular, planar, planar or truncated cone-shaped.

53. Device according to one or more of the preceding claims, characterized by an arc angle of the deflecting mirror of 0 ° to 360 °, preferably from 0 ° to 220 °, particularly preferably from 0 ° to 180 °.

54. Device according to one or more of the preceding claims, characterized in that the finger surface area detection arrangement (7) is formed by a separate line sensor.

55. Device according to one or more of the preceding claims, characterized in that the line sensor (3), the finger jacket surface recognition arrangement (7) and the image sensor (60) or the abutment surface (6) are each formed modularly.

56. Device according to one or more of the preceding claims, characterized in that the device is modular and optionally with a finger coat surface recognition arrangement (7) and / or the image sensor (60) or the contact surface (6) can be replaced.

57. Device according to one or more of the preceding claims, characterized in that a Bildaufnahme¬ button (8), in particular on a spreading means (5), is provided, which for the start of recording of the finger or surface line and / or the einzel¬ NEN Finger coat surface is used.

58. Device according to one or more of the preceding claims, characterized in that the deflection mirror (70) in the vicinity of the spreading means (5) is arranged.

59. Acquisition arrangement for the simultaneous acquisition of biometric data such as fingerprints of unterschied¬ union body areas, in particular fingers, wherein the detection arrangement with at least two devices, in particular according to one or more of the preceding claims, for the acquisition of biometric data aus¬ is permitted, wherein the device has at least one optically effective detector for receiving the surface ^'of body regions and a first device for receiving a second body portion is provided a first and a second device for receiving and detection arrangement has a spreading device by which the body portions are spaced such in that lateral recordings of the body regions by the detector are also possible.

60. detection arrangement according to the preceding claim 59, characterized in that the spreading devices (1080) as stops (1082), in particular as cylin¬ drische attacks are formed, which between the Body areas, in particular between the fingers (1030) of a hand (1035), are arranged and the mirrors of the device below the body areas or the fingers.

61. Detection arrangement according to one or both of the preceding claims 59 and 60, characterized in that the spreading device (1080) spreads the finger of a hand introduced into the detection arrangement from 10 ° to 20 °, preferably approximately 15 °, between two adjacent fingers (1030).

62. Detection arrangement according to one or more of vorher¬ claims 59 to 61, characterized in that the detection arrangement (108) has a support surface (1080), are provided in the slots or opening with optically transparent covers and the mirror (102 ) are each arranged in the region of the slot or recess.

63. Detection arrangement according to one or more of vorher¬ claims 59 to 62, characterized in that the support surface (1080) form troughs for receiving fingers (1030) or palm and cause the arrangement of the troughs a spreading device.

64. Detection arrangement according to one or more of vorher¬ claims 59 to 63, characterized in that two in particular adjacent devices (109) share a lens.

65. A detection arrangement according to one or more of the preceding claims 59 to 64, characterized in that a separate, movable sensor head is provided for each finger (1030), and adjacent sensor heads respectively are movable in opposite directions.

66. Detection arrangement according to one or more of vorher¬ claims 59 to 65, characterized in that for each finger (1030) has its own ,, movable Sensor¬ head is provided and each sensor head longitudinally movable, in particular in the direction of the longitudinal extension of je¬ respective Fingers is movable.

67. Detection arrangement according to one or more of vorher¬ claims 59 to 66, characterized by a Festleganordnung the hand and / or the individual fingers on or in the detection arrangement.

68. Detecting device for receiving the finger or hand line of a test subject, characterized by a double, preferably mirrored arrangement of two devices or detection arrangements according to one or more of the preceding claims.

69. A method for acquiring biometric data, for example a fingerprint, wherein a detector at least captures an image of a first subarea of the surface to be detected of a body region, after which a relative movement takes place between the detector and the body region, after which the detector at least one image of a second partial area of the surface to be detected of the body area receives.

70. A method for acquiring biometric data, for example a fingerprint, wherein a sensor head consisting of a detector and an imaging optics captures at least one image of a first subarea of the surface of a body region to be detected, then a relative movement between the body region and the Sensor head or parts of the sensor head takes place and her¬ after the sensor head receives at least one image of a second partial area of the surface of the Körperbe¬ to be detected.

71. The method according to one or both of the preceding An¬ claims, characterized in that the relative movement is parallel or substantially parallel to the longitudinal extent of the body region.

72. The method according to one or more of the preceding claims 69 to 71, characterized in that:

Detector correlates the captured images of the sub-images in their order in a memory stores.

73. The method according to one or more of the preceding claims 69 to 72, characterized in that overlap at least the images of the first and second partial area partially.

74. The method according to one or more of the preceding claims 69 to 73, characterized in that in

Beam path between the body portion and the detector is at least partially curved or curved mirror, if appropriate, provided as part of the imaging optics, and the detector receives an image of a curved partial surface.

75. The method according to one or more of the preceding claims 69 to 74, characterized in that in an image processing module, the images stored in the memory are combined to form a three-dimensional image of the detected surfaces.

76. Method according to one or more of the preceding Claims 69 to 75, characterized in that the

Image processing module equalizes the image and / or the individual images.

77. A method for receiving finger or hand lines, wherein the recording of the finger coat surface takes place simultane- ously with the recording of the hand lines.

78. Method according to the preceding claim 77, characterized in that firstly the finger jacket surface is received, in particular by one or more finger jacket surface imaging or recognition arrangements, and subsequently a sensor receives the finger lines of the finger bottom side.

79. The method according to one or both of the preceding An¬ claims 77 and 78, characterized by a comparison, a control or an assignment of auf¬ assumed fingernail surfaces to the respective auf¬ taken finger bottoms of the fingers.

80. The method according to one or more of the preceding An¬ claims 77 to 79, characterized by a Bildkor¬ rectification step for the elimination of dithering movements of the hand.

81. The method according to one or more of the preceding An¬ claims 77 to 80, characterized in that in the

Using light with different wavelength and / or the use of a color camera, a spatial image of the finger coat surface or the hand is generated.

81. The method according to one or more of the preceding An¬ claims 77 to 80, characterized in that first the hand is inserted into a device for receiving the finger or hand lines, in particular according to one or more of the preceding claims 1 to 58, an image pick-up button arranged in the device is actuated and during the pulling-out movement of the hand the device the Hand- relationship as finger lines and the finger coat surface aufge¬ taken.

82. Method according to one or more of the preceding

Claims 77 to 81, characterized in that zu¬ at least in addition to the image of the finger coat surface at least the transition region between the fingers and the palm of the hand maps and / or is detected for ein¬ unequivocal, forgery-proof assignment of the recorded Bil¬ and / / or data.

83. The method according to one or more of the preceding claims 77 to 82, characterized in that recorded and forwarded in a first phase, an image of the body region and in a second phase, the detection in a computer by means of a software er¬ follows, which detected the or imaged data with data stored in the computer compares and evaluates.