Device and method for scanning a part of a person's body

Abstract

The invention relates to a device (10) and a method for scanning a person's face, particularly for identification purposes. This device (10) comprises at least one first recording unit (11) and at least one second recording unit (12a, 12b, 12c). The at least one first recording unit (11) is configured to capture at least one optical image of the face. Furthermore, the at least one second recording unit (12a, 12b, 12c) is configured to capture at least one infrared image of the face.

Description

FIELD OF THE INVENTION

[0001] The invention relates to a device for scanning a body part, in particular the face, of a person, in particular for identifying the same, and to a method for scanning a body part, in particular the face, of a person, in particular for identifying the same. BACKGROUND

[0002] Due to an increasing number of applications involving automated identification of persons and the associated need to provide reliable identification options, there is a growing need for corresponding devices and methods for scanning a person's face, which can be used to provide reliable identification for such applications.

[0003] Document CN 211878612 U shows a face scanner comprising a housing, a first lens, a second lens, a third lens, and a power supply and a control module arranged in the housing. The first lens, the second lens, and the third lens are attached to the same side wall of the housing, the first lens, the second lens, and the third lens are electrically connected to the control module, and the power supply is connected externally to the control module. The side walls of the housing to which the first lens, the second lens, and the third lens are attached are inclined outwards in the height direction of the housing from the center to the end near the bottom of the housing, and the third lens is attached to the inclined surface. This document assumes that the speed and accuracy of the corresponding data acquisition during face scanning can be achieved by using a plurality of camera lenses orThe three aforementioned lenses are guaranteed. Unfortunately, the described facial scanner cannot guarantee the unambiguous identification of a person due to its configuration. TASK AND SOLUTION

[0004] Accordingly, it is an object of the invention to provide a device for scanning a body part, in particular the face, of a person, in particular for identifying the same, and a method for scanning a body part, in particular the face, of a person, in particular for identifying the same, wherein a particularly high reliability is to be ensured in a cost-effective manner.

[0005] The problem is solved with respect to the device by the features of the first independent patent claim. The problem is solved with respect to the method by the features of the second independent patent claim. The subclaims contain advantageous developments. DETAILED DESCRIPTION OF THE INVENTION

[0006] According to a first aspect of the invention, a device for scanning a body part, in particular the face, of a person, in particular for identifying the same, is provided. The device has at least one first recording unit and at least one second recording unit. The at least one first recording unit is configured to record at least one optical image of the body part, in particular the face. Furthermore, the at least one second recording unit is configured to record at least one infrared image of the body part, in particular the face. Advantageously, this ensures particularly high reliability in a cost-effective manner.

[0007] A further advantage is that a clear identification of the person in question can be ensured in particular by the fact that the at least one second recording unit makes it possible to make visible vein structures that are located in or under the human skin and are as individual as a fingerprint.

[0008] According to an embodiment of the first aspect of the invention, the device further comprises at least one third recording unit and / or a control unit. The at least one third recording unit is configured to record at least one thermographic image of the body part, in particular the face, and / or the entire person. Additionally or alternatively, the control unit is configured to control the at least one first recording unit and / or the at least one second recording unit and / or the at least one third recording unit. This can advantageously further increase reliability, for example.

[0009] It should be noted that it may be particularly advantageous if the control unit is configured to identify the person on the basis of the at least one optical image in combination with the at least one infrared image and / or with the at least one thermographic image.

[0010] According to a further embodiment of the first aspect of the invention, the device further comprises at least one first illumination unit and / or at least one second illumination unit. The at least one first illumination unit is configured to emit light in the visible range, in particular in the range of a wavelength between 400 nm and 800 nm, in particular to illuminate the relevant body part, in particular the face. Additionally or alternatively, the at least one second illumination unit is configured to emit light in the infrared range (IR), in particular with a wavelength of at least 800 nm, preferably of more than 840 nm, in particular to illuminate the relevant body part, in particular the face. This can advantageously further increase reliability, for example, because it enables evaluation of a combination of images in the visible and infrared ranges.

[0011] It may be particularly advantageous if the control unit is configured to activate the at least one first illumination unit for recording the at least one optical image and / or to activate the at least one second illumination unit for recording the at least one infrared image and / or for recording the at least one thermographic image.

[0012] According to a further embodiment of the first aspect of the invention, the at least one first illumination unit is or comprises at least one LED, preferably at least one white-light LED, particularly preferably a plurality of white-light LEDs, very particularly preferably a first array of LEDs, in particular white-light LEDs. Additionally or alternatively, the at least one second illumination unit is or comprises at least one LED, preferably at least one IR LED, particularly preferably a plurality of IR LEDs, very particularly preferably a second array of LEDs, in particular IR LEDs. In particular, the first array and the second array overlap or are superimposed on one another. Advantageously, this allows, for example, the corresponding illumination to be optimized cost-effectively.

[0013] It may be particularly advantageous if the control unit is configured to control the corresponding LEDs of the first array and / or the second array individually.

[0014] According to a further embodiment of the first aspect of the invention, different LEDs emit light with different wavelengths in different infrared ranges. Additionally or alternatively, the infrared range of different IR LEDs has a different wavelength, in particular a wavelength at or substantially at 850 nm, 940 nm, or 1080 nm, or a different wavelength range each comprising at least one of the wavelengths 850 nm, 940 nm, or 1080 nm. Advantageously, this makes it possible, for example, to visualize vein structures at different skin depths, thereby further increasing the reliability of identification. The wavelength used scales with the depth of penetration into the skin.

[0015] According to a further embodiment of the first aspect of the invention, the device further comprises a display unit, in particular a touch-sensitive display unit. The display unit, in particular the touch-sensitive display unit, is configured to display an output and / or receive an input. This can advantageously ensure, for example, particularly efficient interaction with the device.

[0016] According to a further embodiment of the first aspect of the invention, the device further comprises a glass cover, in particular a tinted glass cover. The glass cover, in particular the tinted glass cover, is arranged on the device in such a way that it covers the at least one first receiving unit and / or the display unit, in particular wherein the corresponding tint is correspondingly modified or interrupted in the region of the at least one first receiving unit and / or in the region of the display unit. Additionally or alternatively, the glass cover, in particular the tinted glass cover, can be arranged on the device in such a way that it is interrupted in the region of the at least one second receiving unit and / or in the region of the at least one third receiving unit.Furthermore, or alternatively, the glass cover, in particular the tinted glass cover, can be arranged on the device in such a way that it is in contact with the display unit via a flexible plastic layer, in particular a silicone layer, preferably by optical bonding. Advantageously, this allows, for example, particularly sensitive elements of the device to be protected in a cost-effective and reliable manner.

[0017] According to a further embodiment of the first aspect of the invention, the device further comprises at least one element comprising a glass containing a chalcogen, in particular a chalcogenide glass. The at least one element, in particular a chalcogenide glass, is arranged on the device such that it covers the at least one second receiving device and / or the at least one third receiving device. Advantageously, this allows, for example, appropriate bandpass filtering of the incident infrared light to be realized in a cost-effective manner. In particular, this prevents the passage of light in the visible range.

[0018] According to a further embodiment of the first aspect of the invention, each chalcogenide glass is inserted into a recess of the glass cover.

[0019] According to a further embodiment of the first aspect of the invention, the at least one chalcogenide glass is designed to allow a wavelength range of preferably 750 nm to 14 µm, preferably a wavelength range of 800 nm to 1200 nm, particularly preferably from 840 nm to 1100 nm, and most preferably from 850 nm to 1080 nm, to pass through. This can advantageously further increase reliability, for example, especially since the wavelength range of the preferred IR LEDs falls within this bandpass window.

[0020] According to a second aspect of the invention, a method is provided for scanning a body part, in particular the face, of a person, in particular for identifying the same, in particular using a device according to the first aspect of the invention or an embodiment of the first aspect of the invention. This method comprises the following steps: recording at least one optical image of the body part, in particular the face, in particular using at least one first recording unit; recording at least one infrared image of the body part, in particular the face, in particular using at least one second recording unit; and comparing the at least one optical image and / or the at least one infrared image with acquired and / or stored data relating to a human and / or the person, in particular using a control unit.Advantageously, this allows particularly high reliability to be guaranteed in a cost-effective manner.

[0021] A further advantage is that unambiguous identification of the respective person can be ensured, in particular by capturing at least one infrared image, which makes it possible to visualize vein structures located in or beneath the human skin, which are as individual as a fingerprint. The optical image can also be used to identify the iris.

[0022] Furthermore, all embodiments of the first aspect of the invention apply analogously to the second aspect of the invention. DESCRIPTION OF PREFERRED EMBODIMENTS

[0023] A detailed exemplary description of some embodiments of the invention is given below with reference to the figures of the drawing. In the drawing: Fig. 1 a front view of an exemplary embodiment of a device according to the invention for scanning the face of a person, in particular for identifying the same, without a glass cover; Fig. 2 a three-dimensional view of the embodiment according to Fig. 1; Fig. 3 the front view of the device according to Fig. 1 with glass cover; Fig. 4 the three-dimensional view according to Fig. 2 with glass cover; Fig. 5 a sectional view of the embodiment according to the Fig. 1; Fig. 6 shows an exemplary flowchart of an embodiment of the method according to the invention for scanning the face of a person, in particular for identifying the same; and Fig. 7 an embodiment of a functional block diagram.

[0024] Since the Fig. 1 to 5 are each directed to the same embodiment in different views and without or with glass cover 17, it should first be pointed out that in the following no explicit reference will be made to each of these Fig. 1 to 5. In this context, the corresponding reference symbols used in relation to the Fig. 1 to 5 are identical as long as they address identical elements, which element is explained in each case.

[0025] The Fig. 1 to 5 show that the device 10 for scanning a body part, in particular the face, of a person, in particular for identifying the person, comprises a first recording unit 11 and three second recording units 12a, 12b, 12c. The first recording unit 11 is configured to record at least one optical image of the face, while the three second recording units 12a, 12b, 12c are each configured to record at least one infrared image of the face.

[0026] In other words, one could say that the first recording unit 11 records its image in the visible range (of light), and that each of the three second recording units records its image in the infrared range. The first recording unit can, in particular, be a light camera or a white-light camera. Furthermore, at least one or each of the three second recording units 12a, 12b, 12c can each be an infrared camera.

[0027] It should be noted that it can be particularly advantageous if the first recording unit 11 and at least one or each of the three second recording units 12a, 12b, 12c record their respective images simultaneously or in parallel. This particular advantage of simultaneity or parallelism can also apply analogously to the third recording unit 13 of the device 10 with respect to the first recording unit 11 and / or at least one or each of the three second recording units 12a, 12b, 12c.

[0028] This third recording unit 13 is configured to capture at least one thermographic image of the body part, in particular the face, and / or the person. The third recording unit 13 can also be, in particular, a thermal imaging camera.

[0029] Furthermore, it should be noted that it can be particularly advantageous if the device 10 has a control unit which is Fig. 7 is explicitly shown. Preferably, this control unit is configured to control the at least one first recording unit 11 and / or at least one or each of the three second recording units 12a, 12b, 12c and / or the third recording unit 13.

[0030] Furthermore, the control unit can be configured to assign the corresponding eye color of the person whose face is or was scanned to one of the colors green, blue or brown.

[0031] In this context, it may be particularly advantageous if the control unit is configured to perform iris recognition, wherein the iris recognition is based in particular on the basis of the at least one optical image if the task color has been assigned to the color green or blue, or on the basis of the at least one infrared image if the eye color has been assigned to the color brown.

[0032] Furthermore, the device 10 comprises a first illumination unit in the form of an array of white-light LEDs, one of which is representatively designated by reference numeral 14. This first illumination unit is configured to emit light in the visible range, in particular to illuminate the body part, in particular the face.

[0033] In addition, the device 10 comprises a second illumination unit in the form of an array of infrared LEDs (IR LEDs), one of which is representatively designated by reference numeral 15. This second illumination unit is configured to emit light in the infrared range, in particular to illuminate the face. It should be noted that it may be particularly advantageous if the array of white light LEDs and the array of IR LEDs overlap or are superimposed on one another.

[0034] It should also be noted that it may be particularly advantageous if the control unit is configured to control the first lighting unit and / or the second lighting unit.

[0035] In particular, in the event that the control unit is configured to assign the corresponding eye color of the person whose face is or was scanned to one of the colors green, blue or brown and / or to carry out iris recognition, the control unit can be configured, in particular for iris recognition, to activate the first lighting unit if the task color has been assigned to the color green or blue and / or to activate the second lighting unit if the eye color has been assigned to the color brown.

[0036] With regard to the above-mentioned infrared range, it should be noted that this infrared range may have a wavelength at or substantially at 850 nm or 940 nm or 1080 nm or a wavelength range comprising at least one or at least two of the wavelengths 850 nm, 940 nm, 1080 nm.

[0037] The aforementioned term "substantially" can be understood in particular to mean that the corresponding wavelength deviates from the respective specified value by no more than 20 percent, preferably no more than 10 percent, particularly preferably no more than 5 percent, and most preferably no more than 3 percent. This may also apply below.

[0038] It may be particularly advantageous if one of the three second recording units 12a, 12b, 12c, for example the recording unit 12a, is most sensitive at or substantially at a wavelength of 850 nm, and / or if a (further) of the three second recording units 12a, 12b, 12c, for example the recording unit 12b, is most sensitive at or substantially at a wavelength of 940 nm, and / or if a (further) of the three second recording units 12a, 12b, 12c, for example the recording unit 12c, is most sensitive at or substantially at a wavelength of 1080 nm.

[0039] Furthermore, the device 10 has a display unit 16, for example, a display. The display unit 16 or the display is configured to display an output. This output can, for example, be at least one instruction for the person whose face is to be scanned.

[0040] The display unit 16 can also be designed as a touch-sensitive display unit, for example, as a touch display or touchscreen. This touch-sensitive display unit can be configured to display an output and / or receive an input, in particular from the person whose face is to be scanned.

[0041] In addition, the device 10 has a glass cover 17 which is arranged on the device 10 in such a way that it covers the first receiving unit 11, the three second receiving units 12a, 12b, 12c, the third receiving unit 13 and the display unit 16.

[0042] For example, the glass cover 17 is a tinted glass cover, wherein the corresponding tint is preferably interrupted in the area of ​​the first receiving unit 11. In the area of ​​the display unit 16, the corresponding tint of the glass cover 17 is preferably interrupted or at least modified accordingly such that the display unit 16 can be easily read despite the glass cover 17.

[0043] Furthermore, it can be seen that the glass cover is interrupted or recessed in the area of ​​the three second receiving units 12a, 12b, 12c and in the area of ​​the third receiving unit 13. The respective recess 21a, 21b, 21c, 21d is, in particular, a circular recess.

[0044] It should be noted that it may be particularly advantageous if the display unit 16 contacts the glass cover 17 via a silicone layer (optically).

[0045] Furthermore, the device 10 comprises four chalcogenide glasses, one of which is representatively designated by reference numeral 18. These four chalcogenide glasses are each arranged on the device 10 such that they cover the three second receiving devices 12a, 12b, 12c and the third receiving device 13. In other words, each of the four chalcogenide glasses is arranged in the corresponding interruption or recess 21a, 21b, 21c, 21d of the glass cover 17.

[0046] It may be particularly advantageous if at least one or each of the four chalcogenide glasses is designed to allow a wavelength range of 750 nm to 14 µm, preferably a wavelength range of 800 nm to 1200 nm, particularly preferably of 840 nm to 1100 nm, most preferably of 850 nm to 1080 nm to pass through.

[0047] It may further be particularly advantageous if one of the four chalcogenide glasses, for example the chalcogenide glass covering the receiving unit 12a, allows a wavelength of 850 nm to pass through, or substantially a wavelength of 940 nm to pass through, and / or if one or a further one of the four chalcogenide glasses, for example the chalcogenide glass covering the receiving unit 12b, allows a wavelength of 940 nm to pass through, or substantially a wavelength of 1080 nm to pass through, and / or if one or a further one of the four chalcogenide glasses, for example the chalcogenide glass covering the receiving unit 12c, allows a wavelength of 1080 nm to pass through, or substantially a wavelength of 1080 nm to pass through, and / or if one or a further one of the four chalcogenide glasses, for example the chalcogenide glass covering the third receiving unit 13, allows a wavelength range of greater than 1080 nm, for example greater than 2 µm, to pass through.

[0048] As already mentioned above, the aforementioned term "substantially" can be understood in particular to mean that the corresponding wavelength deviates from the respective specified value by no more than 20 percent, preferably no more than 10 percent, particularly preferably no more than 5 percent, and most preferably no more than 3 percent. This can apply analogously to the respective limits of a wavelength range.

[0049] Before an exemplary flow chart of the method is explained, which in particular can use the device 10, geometric features of the device 10 are mentioned below.

[0050] The greatest possible distance between two of the three second receiving units 12a, 12b, 12c, for example between the receiving units 12a and 12c, is preferably between 200 mm and 500 mm, preferably at or substantially at 270 mm. The aforementioned term "substantially" can be understood in particular to mean that the corresponding distance deviates from the specified value by no more than 20 percent, preferably no more than 10 percent, particularly preferably no more than 5 percent, and most particularly preferably no more than 3 percent.

[0051] Furthermore, the three second receiving units 12a, 12b, 12c and the third receiving unit are preferably arranged in a first line 19a, in particular along the length of the device 10. The length of the device 10 can be understood in particular as the largest dimension of the device 10.

[0052] In addition, the three second receiving units 12a, 12b, 12c and the third receiving unit are preferably arranged equidistant from one another.

[0053] Preferably, the receiving units 12a and 12b are arranged mirror-symmetrically to the receiving units 12c and 13, with the corresponding axis of symmetry 20 being arranged, in particular, perpendicular to the first line. Furthermore, the receiving units 12b and 13 are each located closer to this axis of symmetry 20 than the receiving units 12a and 12c.

[0054] It may be particularly advantageous if the display unit 16 is arranged such that it is bisected or substantially bisected by the first line 19a and / or the aforementioned axis of symmetry 20. Regarding the first line 19a, it should be noted that it preferably runs parallel to the floor on which the person whose face is to be scanned is standing or sitting on a chair that, in turn, is standing on the floor.

[0055] Further preferably, the first receiving unit 11 is arranged on a second line 19b, which in particular runs parallel to the first line 19a and / or has a greater distance from the mentioned floor than the first line.

[0056] It may also be particularly advantageous if the first receiving unit 11, in particular with respect to the mentioned floor, is arranged vertically above one of the three second receiving units 12a, 12b, 12c, for example vertically above the receiving unit 12b.

[0057] Furthermore, it should be noted that it can be particularly advantageous if no lighting element, in particular no white light or IR LED, of the first and second lighting unit is arranged in a predefined radius around each of the recording units 11, 12a, 12b, 12c, 13.

[0058] Fig. 6 shows an exemplary flowchart of the method according to the invention for scanning the face of a person, in particular for identifying the same. A first step 101 comprises capturing at least one optical image of the face, in particular using at least one first recording unit, for example using the first recording unit according to one of the Fig. 1, Fig. 2 and Fig. 5. Furthermore, a second step 102 comprises recording at least one infrared image of the face, in particular using at least one second recording unit, for example using at least one or each of the three second recording units 12a, 12b, 12c according to one of the Fig. 1 to 5. Furthermore, a third step 103 comprises comparing the at least one optical image and / or the at least one infrared image with acquired and / or stored data relating to a human and / or the person, in particular with the aid of a control unit, for example with the aid of the above-mentioned control unit or the control unit 30 described below.

[0059] Fig. 7 shows an exemplary block diagram, in particular to illustrate an exemplary operation of the device 10 according to Fig. 1 to Fig. 5 to illustrate.

[0060] According to this Fig. 7 shows a control unit 30 connected to a first receiving unit 31, for example, the above-mentioned first receiving unit 11, and a second receiving unit 32, for example, the three second receiving units 12a, 12b, 12c. For the sake of completeness, it should be mentioned that the above-mentioned device 10 in particular comprises the control unit 30.

[0061] Furthermore, the control unit 30 can be connected to a first lighting unit 34, for example to the above-mentioned first lighting unit, and / or to a second lighting unit 35, for example to the above-mentioned second lighting unit, and / or to a display unit 36, for example to the above-mentioned display unit 16.

[0062] Accordingly, the above statements regarding elements 11, 12a, 12b, 12c, 13, 14 (where LED 14 is understood to be particularly representative of the first lighting unit), 15 (where LED 15 is understood to be particularly representative of the second lighting unit), and 16 can each apply analogously to the corresponding elements 31, 32, 33, 34, 35, and 36. This can also apply in reverse.

[0063] Furthermore, it should be noted that it may be particularly advantageous if the control unit 30 is configured to compare the at least one optical image and / or the at least one infrared image and / or the at least one thermographic image with acquired and / or stored data relating to a human being and / or the person, in particular the corresponding body part or face of which is being scanned.

[0064] For this purpose, the control unit 30 may preferably have an input 40 configured to receive the data relating to a human and / or the person. Additionally or alternatively, the control unit 30 could have a storage unit configured to store the data relating to a human and / or the person.

[0065] The aforementioned data can, for example, comprise an optical image, in particular a photograph, and / or an IR image of the person or the person to be scanned and / or identified. Additionally or alternatively, the data can, in particular, comprise information about what an IR image and / or a thermographic image of a living person should generally look like. This advantageously ensures that the person is actually a human being and not, for example, a mere image of the person or another person who has altered their appearance with a mask or similar device.

[0066] Furthermore, the data can be obtained and / or stored, for example, by using a recording device, for example a photo camera and / or an IR camera and / or a document scanner, in particular an ID card scanner, and / or by using a storage medium, for example the storage unit of the control unit 30 and / or a server.

[0067] This makes it possible, for example, to first acquire a visual image and an IR image of a person and store them on a server. The data thus acquired and stored is then available for later identification of that person.

[0068] It would also be possible to scan a person's identification document, in particular the photograph of the person depicted thereon, in order to then store it and / or compare it with the person who is or was scanned, in particular, by the device 10, or with the correspondingly obtained optical image of the person. Furthermore, the at least one IR image, which is or was obtained, in particular, using the device 10, could be checked to determine whether the corresponding person is actually a human or not masked. This check is preferably based on a comparison between the at least one IR image and at least one IR image that is typical of a living person.

[0069] Furthermore, Fig.7 that it can be particularly advantageous if the device 10 and / or the control unit 30 is configured such that a further display unit, for example an external display 37, can be connected to the device 10 and / or to the control unit 30. The above statements regarding the display unit 16 or 36 can apply analogously to this further display unit, in particular the external display 37.

[0070] The external display 37 can be understood in particular as a display which is not arranged directly on or in the device 10.

[0071] Furthermore, the control unit can be configured to control the display unit 36 ​​and / or the additional display unit 37 such that at least one positioning aid is displayed on the display unit 36 ​​and / or on the additional display unit. As already mentioned above, this can apply analogously to the display unit 16.

[0072] The at least one positioning aid is preferably designed such that a specific distance between the corresponding person whose body part is to be scanned and the at least one first recording unit, for example the first recording unit 11 or 31, and / or the at least one second recording unit, for example one or each of the three second recording units 12a, 12b, 12c or the second recording unit 32, and / or the at least one third recording unit, for example the third recording unit 13 or 33, can be ensured, in particular in order not to fall below a predefined minimum resolution of the corresponding image.

[0073] For example, the at least one positioning aid can comprise or be at least one template. In this context, the control unit 30 can be configured to display a live image of the corresponding body part of the respective person together with the at least one template on the display unit 16 and / or the further display unit 17, in particular in a superimposed or underlying manner.

[0074] Preferably, the control unit 30 is configured to acquire the aforementioned live image using the at least one first recording unit, for example the first recording unit 11 or 31, and / or the at least one second recording unit, for example one or each of the three second recording units 12a, 12b, 12c or the second recording unit 32, and / or the at least one third recording unit, for example the third recording unit 13 or 33.

[0075] For the exemplary case where the body part to be scanned is a hand, it should be mentioned that, especially at least for scanning the corresponding fingerprints, the above-mentioned minimum resolution is preferably 500 dpi (dots per inch).

[0076] For this exemplary case of the hand to be scanned, it is generally particularly advantageous if the control unit 30 is configured to record at least one corresponding fingerprint and / or the corresponding palm pattern and / or the corresponding vein pattern with the aid of the at least one first recording unit, for example the first recording unit 11 or 31, and / or the at least one second recording unit, for example one or each of the three second recording units 12a, 12b, 12c or the second recording unit 32, and / or the at least one third recording unit, for example the third recording unit 13 or 33.

[0077] The invention is not limited to the embodiments discussed above. All features described in the description, claimed in the claims, or shown in the drawings can be combined with one another as desired within the scope of this invention. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 211878612 U

[0003]

Claims

[1] A device (10) for scanning a body part, in particular the face, of a person, in particular for identifying the same, comprising: at least one first receiving unit (11, 31), and at least one second receiving unit (12a, 12b, 12c, 32), wherein the at least one first recording unit (11, 31) is configured to record at least one optical image of the body part, and wherein the at least one second recording unit (12a, 12b, 12c, 32) is configured to record at least one infrared image of the body part. [2] The device (10) of claim 1, further comprising: at least one third receiving unit (13, 33), and / or a control unit (30), wherein the at least one third recording unit (13, 33) is configured to record at least one thermographic image of the body part and / or the person, and / or wherein the control unit (30) is configured to control the at least one first receiving unit (11, 31) and / or the at least one second receiving unit (12a, 12b, 12c, 32) and / or the at least one third receiving unit (13, 33). [3] The device (10) according to claim 1 or 2, further comprising: at least one first lighting unit (34), and / or at least one second lighting unit (35), wherein the at least one first lighting unit (34) is designed to emit light in the visible range, in particular to illuminate the body part, and / or wherein the at least one second illumination unit (35) is configured to emit light in the infrared range, in particular to illuminate the body part. [4] The device (10) according to claim 3, wherein the at least one first lighting unit (34) comprises or is at least one LED, preferably at least one white light LED, particularly preferably a plurality of white light LEDs, very particularly preferably a first array of LEDs, in particular white light LEDs, and / or wherein the at least one second illumination unit (35) comprises or is at least one LED, preferably at least one IR LED, particularly preferably a plurality of IR LEDs, most preferably a second array of LEDs, in particular IR LEDs, wherein the first array and the second array in particular overlap or are in particular superimposed on one another. [5] The device (10) according to claim 3 or 4, where different LEDs emit with different wavelengths in different infrared ranges, and / or wherein the infrared range has a wavelength at or substantially at 850 nm or 940 nm or 1080 nm or a wavelength range comprising at least one of the wavelengths 850 nm, 940 nm, 1080 nm. [6] The device according to any one of claims 1 to 5, further comprising: a display unit (16, 36), in particular a touch-sensitive display unit, wherein the display unit (16, 36), in particular the touch-sensitive display unit, is configured to display an output and / or receive an input. [7] The device (10) according to any one of claims 1 to 6, further comprising: a glass cover (17), in particular a tinted glass cover, wherein the glass cover (17), in particular the tinted glass cover, is arranged on the device (10) in such a way that it covers the at least one first receiving unit (11, 31) and / or the display unit (16, 36), in particular wherein the corresponding tint in the area of ​​the at least one first receiving unit (11, 31) and / or in the area of ​​the display unit (16, 36) is modified or interrupted accordingly, and / or wherein the glass cover (17), in particular the tinted glass cover, is arranged on the device (10) in such a way that it is interrupted in the region of the at least one second receiving unit (12a, 12b, 12c, 32) and / or in the region of the at least one third receiving unit (13, 33), and / or wherein the glass cover (17), in particular the tinted glass cover, is arranged on the device (10) in such a way that it is in contact, preferably in optical contact, with the display unit (16, 36) via a flexible plastic layer, in particular a silicone layer. [8] The device (10) according to any one of claims 1 to 7, further comprising: at least one chalcogenide glass (18), wherein the at least one chalcogenide glass (18) is arranged on the device (10) in such a way that it covers the at least one second receiving device (12a, 12b, 12c) and / or the at least one third receiving device (13). [9] The device according to claim 7 and 8, wherein each chalcogenide glass (18) is inserted into a recess (21a, 21b, 21c, 21d) of the glass cover (17). [10] The device (10) according to claim 8 or 9, wherein the at least one chalcogenide glass (18) is designed to allow a wavelength range of 750 nm to 14 µm, preferably a wavelength range of 800 nm to 1200 nm, particularly preferably of 840 nm to 1100 nm, most particularly preferably of 850 nm to 1080 nm, to pass through. [11] A method for scanning a body part, in particular the face, of a person, in particular for identifying the same, in particular with a device according to one of claims 1 to 10, comprising the following steps: Recording (101) at least one optical image of the body part, in particular with the aid of at least one first recording unit (11), Recording (102) at least one infrared image of the body part, in particular by means of at least one second recording unit (12a, 12b, 12c), and Comparing (103) the at least one optical image and / or the at least one infrared image with acquired and / or stored data relating to a human and / or the person, in particular with the aid of a control unit.

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