Identification document with biometric image information

Abstract

Identification document with a carrier (10) having a personalization area (3) for recording biometric image information (5), wherein the personalization area (3) has a recording layer (11) for recording image information and a lens arrangement (20), wherein the biometric image information (5) is viewed through the lens arrangement (20), wherein the biometric image information (5) has a basic information (12) comprising a base image (15) that is dominantly recognizable at a first viewing angle (α1), and a derivative image (16) that is recognizable at a second viewing angle (α1).2) is dominantly recognizable, wherein the derivative image (16) is derived from the base image (15) and shows or emphasizes a recognizably essential component of the base image (15), so that in the perception of the combined image information from base image (15) and derivative image (16) a three-dimensional overall impression of the content of the base image (15) is created, and wherein the basic information (12) has a biometric image content as well as additional security information.;

Description

[0001] The invention relates to an identification document containing biometric image information. In particular, the invention relates to an identification document with a carrier on which image information of a person is reproduced in a personalization area.

[0002] From EP1044826 A1, a multilayer data carrier is known on which image information is stored. The data carrier can, in particular, be an identity card, and the image information can, in particular, be a portrait photograph of an authorized holder of the identity card. The image information consists, firstly, of a color image applied to the surface of a substrate, which in turn is arranged on a carrier layer. Secondly, the image information consists of pixels formed in the substrate layer or on the carrier layer. The pixels consist of recognition-relevant features of the original image. In one variant, the pixels with the recognition-relevant features are inscribed into the substrate using laser radiation.

[0003] The purpose of the invention is to improve the longevity of an identification document and to further increase its security against forgery.

[0004] This problem is solved by an identification document with the features of the main claim. The identification document according to the invention has the advantage that the biometric image information is very stable over a long period. Since two distinct images are required, the identification document is difficult to counterfeit, thus increasing its security against forgery. The high degree of plasticity that the biometric image information evokes in the viewer improves the recognizability of the image. Because the image information is contained within the identification document, it possesses a long lifespan.

[0005] The biometric image information advantageously consists of basic information and a corresponding supplementary information layer, which is formed on or above the lens assembly. The basic information advantageously includes a black and white photograph, while the supplementary information includes a corresponding color photograph.

[0006] A practical advantage of the invention is that its implementation requires no expensive new equipment or special materials. Therefore, implementation is cost-effective.

[0007] The invention makes it more difficult, among other things, to manipulate identification documents that aim to overlay only certain identifying features, e.g., eyes, nose and mouth, onto a photograph or biometric image information with manipulated new image information, in the expectation that the otherwise unchanged image information can feign overall authenticity.

[0008] An embodiment of the invention is explained in more detail below with reference to the drawing.

[0009] They show: Fig. 1: a cross-section of an identification document Fig. 2: a prospective oversight of an identification document executed as a data page Fig. 3: a base image and a derivative image, Fig. 4: a lens arrangement with added additional information, Fig. 5: one variant of the structure of an identification document.

[0010] Fig. Figure 1 shows a schematic, not to scale, representation of an identification document according to the invention. 1 In cross-section. The identification document 1 It is typically an identification card, e.g., a national identity card in credit card format, or a data page in a passport book. However, it can also come in other forms, for example, as a key fob.

[0011] The identification document 1 has a carrier 10 , on which a recording layer 11 is arranged above which an intermediate layer 19 It lies above the intermediate layer. 19 is a lens arrangement 20 trained. The shifts10 , 11 , 19 , 20 are typically bonded together by lamination. When designed as a data page of a passport book, the identification document has 1 typically a total thickness of 500 to 900 µm.

[0012] As in Fig. As shown in section 2, the identification document indicates 1 on its upper side 2 a biometric personalization area 3 and a bibliographic personalization area 4 open. The biometric personalization area 3 includes biometric image information 5 The biometric image information 5 This can be, in particular, a photograph of an authorized holder, preferably a color photograph. In the bibliographic personalization area 4 For example, the owner's name, address, date of birth and a serial number in the form of alphanumeric characters are stored.

[0013] The biometric personalization area 3 It also features a lens arrangement 20 on. Preferably the lens arrangement covers 20 the biometric personalization area 3 complete. The lens arrangement 20 This causes the view to vary depending on the viewing angle. α1 , α2 under the lens arrangement 20 Several images are recognizable. As the viewing angle changes, one image blends into the next. Depending on the viewing angle, the different images overlap for the viewer, with the first defined viewing angle... α1 A first image dominates the overall impression, and a second, defined viewing angle... α2 a second picture.

[0014] The carrier 10It typically consists of a single or multi-layered plastic sheet in a card format. Other materials, such as paper, are also suitable instead of plastic. The substrate is suitable. 10 Opaque. Is the identification document 1 The thickness of the carrier on a data page of a passport book is 10 typically from 100 to 500 µm

[0015] The recording layer 11 is preferably a plastic layer. It is advantageously transparent or translucent. The recording layer 11 It can be in the form of a foil or a coating of lacquer. Is the identification document 1 On a data page of a passport book, the thickness of the recording layer is 11 typically from 5 to 100 µm, preferably 5 to 50 µm.

[0016] On or in the recording layer 11 This is basic information 12 trained. The basic information 12includes graphical information 13 , especially a photo; optionally it can also contain alphanumeric characters 14 include the basic information. 12 consists of a basic image 15 and a derivative image 16 The basic information 12 is arranged in such a way that it appears in the finished identification document 1 below the lens arrangement 20 lies.

[0017] The recording layer is useful 11 laser bar. It is doped with carbon black, for example. Basic information 12 It is then possible to use a suitable laser to penetrate the recording layer with high spatial precision. 11 Information is introduced. Information generation occurs, for example, through blackening to create pixels. 18 The pixels 18 They can be round, but also take the form of strokes or lines, or be based on other basic shapes. The basic information 12is typically attached to the carrier 10 underside facing 17 the recording layer 11 generated. The individual pixels 18 possess a spatial dimension and extend into the recording layer 11 into. Typically, the spatial shape of the individual pixels resembles 18 during laser manufacturing of a cone tip. Pixels 18 can also, as in Fig. 1 indicated, partly in the carrier 10 hand it in.

[0018] The intermediate layer 19 It is also made of plastic, is transparent, and not laser-sensitive. It is optional and can be omitted. If present, its thickness should ideally be 100 to 200 µm.

[0019] The lens arrangement 20 consists of a transparent plastic layer, in whose surface a lens grid is embedded 21 is formed. The lens arrangement 20It only covers a portion of the plastic layer. It is positioned so that it is visible in the finished identification document. 1 above basic information 12 lies and these through the lens arrangement 20 visible through it. The lens grid is expediently composed of... 21 from along the top 2 parallel cylindrical lenses. These can be found on the upper side. 2 be oriented in any direction, for example horizontally, vertically, or at an angle of 45° to the longitudinal axis of the identification document 1 The longitudinal axes of the cylindrical lenses can lie side by side on parallel straight lines or follow curved or angled lines, for example in a wave-like shape. The division of the lens grid 21 for an identification document 1 in the form of a data page for a passport book, e.g., 100 µm to 200 µm. The lens grid. 21It can also have several sub-areas in which the respective partial lens arrangements 20 They are oriented differently; for example, the sections can be arranged in a herringbone pattern. Spherical lenses, for example, are also an alternative to cylindrical lenses.

[0020] Directly onto the surface 22 the lens arrangement 20 is as in Fig. 4 indicated, additional graphic and / or alphanumeric information 23 applied. Preferably, the additional information 23 a complementary image 33 , which corresponds to the base image 15 corresponds to and interacts with it when viewed. Preferably, the complementary image contains 33 another piece of information that is included in the basic image 15 The information it contains is supplemented. For example, the complementary image can be used. 23 a colored version of the basic image 15This would be the case if it is a black and white image; in another suitable configuration, the complementary image would be included. 33 the color separation to a black and white base image 15 , so that together they create a color image.

[0021] The complementary image is in a defined position relative to the base image. 15 and derivative image 16 arranged.

[0022] The application of the additional information 23 This is conveniently done by printing, e.g. using inkjet technology. As in Fig. 4. To illustrate, the pixels are created. 18 the additional information 23 especially on sloping flanks of the lens arrangement 20 and in the valleys between the lenticular peaks.

[0023] Basic information 12 , i.e. basic image 15 and derivative image 16 , and additional information 23 together they provide the biometric image information for a viewer5 .

[0024] The lens arrangement 20 Images visible through the lens are reduced by the lens arrangement 20 added additional information 23 and those in the recording layer 11 basic information provided 12 determined.

[0025] Basic information 12 It consists of two parts. The first part defines the basic image. 15 The basic image 15 It is advisable to take a photograph of the holder of the identification document. 1 The photo should ideally be a black and white image. The second part defines the derivative image. 16 .

[0026] The derivative image 16 is one from the base image 15 Derivative image. The derivative image appropriately includes or emphasizes the following: 16 Components of the basic image 15, which are essential for the reliable identification of the person or object depicted in the image. For example, the derivative image 16 It may consist solely of the contours of the image content reduced to strokes or lines. Alternatively, it may consist of an enhancement of contours while simultaneously reducing the gray tones or intermediate colors present in the base image. In a practical implementation, the derivative image is created by generating a 3D image from a two-dimensional base image.

[0027] Basic image 15 and / or derivative image 16 In addition to the biometric image content, they can contain additional security information. This could, for example, consist of a guilloche or text pattern forming the image background. Both components of the basic information 12 , basic image 15 and derivative image 16 , are formed by the side-by-side arrangement of the individual pixels 18on the same plane on the underside 17 the recording layer 11 or in the recording layer 11 trained.

[0028] When considering biometric information 5 through the lens arrangement 20 are - together with the additional information 23 - basically both components of the basic biometric information 12 , i.e. basic image 15 and derivative image 16 simultaneously visible. Will the information be displayed? 12 through the lens arrangement 20 from a first defined perspective α1 The overall impression is determined by the base image. 15 If it dominates, it will be viewed from a second defined perspective. α2 The overall impression is determined by the derivative image. 16 dominates. Especially in the transition area between the two defined viewing angles, the base image overlaps. 15and derivative image 16 This creates a highly three-dimensional overall impression for the viewer. This is achieved by gently tilting the identification document back and forth. 1 The overall three-dimensional impression is enhanced. This supports and facilitates the identification of a person depicted in the base image.

[0029] To produce an identification document, a carrier is appropriately used. 1 provided, which already includes personalization areas 3 , 4 and a lens arrangement 20 It features an identification document that is complete except for personalization. 1 provided.

[0030] Next, a basic image will be displayed. 15 Provided, i.e., a photo of the holder of the identification document. From the base image 15 A derivative image is calculated appropriately. 16 from the base image 15derived, which is an essential component of the basic image for recognition. 15 shows or accentuates.

[0031] Basic image 15 and derivative image 16 are then conveniently placed in the recording layer in one operation. 11 introduced. The basic image is used appropriately. 15 and derivative image 16 through the lens arrangement 20 generated through this process. Preferably, the generation is carried out using a laser.

[0032] Alternatively, the position of the components of the basic biometric information can be 12 due to the geometry of the lens arrangement 20 They are calculated. These are conveniently in the form of pixels. 18 The available information can then also be printed. Such a printed application can be conveniently placed on the underside. 17 the recording layer 17 this will happen before they are with the carrier 10 is connected.

[0033] The basic image 15 is introduced in such a way that when viewed from a first defined viewing angle α1 The derivative image is recognizable or dominates the overall impression. 16 so that it can be viewed from a second defined angle α2 is recognizable or dominates the overall impression.

[0034] The complementary image 33 is applied directly to the surface using appropriate printing techniques. 22 the lens arrangement 20 applied. The printing inks used are preferably not laser-sensitive. The ink is applied in such a way that pixels 18 of the complementary image 33 especially on the flanks of the lens arrangement 20 and form in the valleys between the lenticular peaks.

[0035] When using non-laser-sensitive colors, the application of the complementary image may be difficult. 23before the formation of biometric image information 12 the recording layer 11 This will take place. The implementation of the training in basic biometric information. 12 can then refer to the already existing complementary image 23 orient yourself. Alternatively, you can first gather basic biometric information. 12 created and the complementary image 33 then aligned with the position of the base image 15 and / or derivative image 16 take place.

[0036] Fig. Figure 5 schematically shows a variant of the structure of an identification element. 1 In contrast to the version according to Fig. 1 is in the variant according to Fig. 5 above the lens arrangement 20 an image carrier layer 30 trained and the additional information 23 is not related to the lens arrangement 20 printed, but onto the image carrier layer 30 Above the image carrier layer30 Furthermore, there is a top layer 40 .

[0037] The image support layer 30 It consists of a transparent plastic layer. Is this the identification document? 1 On a data page of a passport book, the thickness of the image carrier layer is 30 typically from 5 to 100 µm. In one variant, the image carrier layer 30 a lacquer layer with a thickness of 5 µm to 20 µm, which follows the contour of the lens arrangement 20 follows. The pixels 18 the additional information 23 These lie particularly on the sloping flanks of the lens arrangement. 20 or in valleys between the lenticular peaks.

[0038] The top layer 40 It also consists of a transparent plastic layer. Is this the identification document? 1 The thickness of the cover layer on a data page of a passport book is... 40typically from 5 to 100 µm. The top layer 40 It functions particularly as a protective layer.

[0039] While maintaining the fundamental principles of identifiability, longevity, and tamper-proof nature of biometric image information 12 to improve by using a lens arrangement 20 a basic image 15 and a derivative image derived from it 16 arranged so that under a first specific viewing angle α1 the image impression through the base image 15 and from a second specific perspective α1 the image impression created by the derivative image 16 is determined so that when considering the combined image information from the base image 15 and derivative image 16To the naked eye, a three-dimensional overall impression with great depth is created; the prescribed solution allows for further elaborations, which are not described in detail here.

[0040] The layer sequence described in the exemplary embodiment can thus be varied in many ways with regard to material and thickness and supplemented by further layers. For the derivation of the derivative image 16 from the base image 15 There are numerous possibilities. It is especially possible that the base image 15 already a derivation from the complementary image 33 represents. Reference symbol list 1 Identification document 2 Top 3 Biometric personalization area 4 Bibliographic personalization area 5 Biometric image information 10 carriers 11 Recording layer 12 Basic Information 13 Graphical information - photo 14 Alphanumeric characters 15 Basic image 16 Derivative image 17 Underside Recording Layer 18 pixels 19 Intermediate shift 20 lens arrangement 21 lens grids 22 Surface Lens Arrangement 23 Additional Information 30 31 Image carrier layer 33 Complementary image 40 Top layer α1 1. Viewing angle α2 2. Viewing angle QUOTES INCLUDED IN THE DESCRIPTION

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

[0000] EP 1044826 A1

[0002]

Claims

[1] Identification document with a carrier (10) having a personalization area (3) for recording biometric image information (5), wherein the personalization area (3) has a recording layer (11) for recording image information and a lens arrangement (20), wherein the biometric image information (5) is viewed through the lens arrangement (20), characterized by, that the biometric image information (5) has a basic information (12) which includes a basic image (15) that is dominantly recognizable under a first viewing angle (α1), and a derivative image (16) that is dominantly recognizable under a second viewing angle (α1), wherein the derivative image (16) is derived from the basic image (15) and shows or emphasizes a recognizably essential component of the basic image (15), so that in the perception of the combined image information from basic image (15) and derivative image (16) a three-dimensional overall impression of the content of the basic image (15) is created. [2] Identification element according to claim 1, characterized by , that additional information (23) is formed on or above the lens arrangement (20), which is coordinated with the basic information (12). [3] Identification element according to claim 2, characterized by, that the biometric image information (5) is given by the interaction of the basic biometric information (12) and the additional information (23). [4] Identification element according to claim 2, characterized by , that the additional information (23) contains a complementary image (33) which adds additional information to the basic image (15). [5] Identification element according to claim 1, characterized by , that the derivative image (16) emphasizes or shows alone contours of the base image (15). [6] Identification element according to claim 1, characterized by , that the derivative image (16) is the two-dimensional representation of a three-dimensional image. [7] Identification element according to claim 1, characterized by , that the derivative image (16) is derived from the base image (15) by spatial analysis. [8] Identification element according to claim 1, characterized by that the image information is monochrome, in particular black and white information. [9] Identification element according to claim 1, characterized by , that the lens arrangement (20) is formed from cylindrical lenses or from spherical lenses. [10] Identification element according to claim 1, characterized by , that the additional information (23) is applied directly to the lens arrangement (20) by printing. [11] Identification element according to claim 1, characterized by , that the basic information (12) includes biometric image content as well as additional security information. [12] Method for producing an identification document using the following steps: Providing a carrier with a personalization area for receiving image information, which has a recording layer (11) for receiving image information and a lens arrangement (20) through which the image information is viewed, characterized by the following steps: Forming a basic image in the recording layer so that it is recognizable from a first viewing angle, Deriving a derivative image (16) from the base image (15) that shows or accentuates a recognizably essential component of the base image (15), Forming the derivative image (16) on or in the recording layer (11) so that it is recognizable from a second viewing angle, where the base image (15) and derivative image (16) are generated through the lens arrangement (20).

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