US5787186A
Expired / Lapsed
US
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Biometric security process for authenticating identity and credit cards, visas, passports and facial recognition
Assignee: I D Tec SL
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Filing: 1995-02-20
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Granted: 1998-07-28
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Expires: 2015-02-20
Abstract
Abstract A biometric security procedure for manufacturing an identity document, such as an identity card, credit card, visa or passport, which includes the steps of: providing a nucleus of the identity document, the nucleus including personal data of a holder of the identity document and a face image of the holder; carrying out, by a computer and an image capturer such as a scanner or a video camera, an analysis of face features of the face image, the computer carrying out an analysis of basic face features of the face image, comparing the basic face features with master/pattern features in a data base, wherein each master/pattern feature has a specific number; obtaining by the analysis a derived set of master/pattern features that corresponds to a characteristic synthetic image of the holder, the derived set of master/pattern features corresponding to a specific numeric code determined by the number of each of the master/pattern features making up the derived set of master/pattern features; and printing the specific numeric code by a printer connected to the computer, on an area of the identity document defined as a code window, whereby the specific numeric code univocally characterizes the holder of the identity document.
Inventors
- 👤 Carlos Cobian Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:57
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/20; B42D25/23; B42D25/30; B42D25/309; G; G06; G06V; G06V40/00; G06V40/10; G06V40/16; G06V40/168; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
205 words
A biometric security procedure for manufacturing an identity document selected from the group comprising identity cards, credit cards, visas and pass-ports, comprising the steps of: providing a nucleus of the identity document, said nucleus comprising personal data of a holder of the identity document and a face image of the holder; carrying out, by means of a computer connected to an image capturing means comprising one of a scanner and a video camera, an analysis of face features of said face image, the computer carrying out an analysis of basic face features of said face image, comparing the basic face features with master/pattern features comprised in a data base, each master/pattern feature having a specific number; obtaining by said analysis a derived set of master/pattern features that corresponds to a characteristic synthetic image of the holder, said derived set of master/pattern features corresponding to a specific numeric code determined by the number of each of the master/pattern features making up said derived set of master/pattern features; printing said specific numeric code by means of a printer connected to the computer, on an area of the identity document defined as a code window, whereby said specific numeric code univocally characterizes the holder of the identity document.
Claim 2
Dependent Claim
205 words
A biometric security procedure for manufacturing an identity document selected from the group comprising identity cards, credit cards, visas and pass-ports, comprising the steps of: providing a nucleus of the identity document, said nucleus comprising personal data of a holder of the identity document and a face image of the holder; carrying out, by means of a computer connected to an image capturing means comprising one of a scanner and a video camera, an analysis of face features of said face image, the computer carrying out an analysis of basic face features of said face image, comparing the basic face features with master/pattern features comprised in a data base, each master/pattern feature having a specific number; obtaining by said analysis a derived set of master/pattern features that corresponds to a characteristic synthetic image of the holder, said derived set of master/pattern features corresponding to a specific numeric code determined by the number of each of the master/pattern features making up said derived set of master/pattern features; printing said specific numeric code by means of a printer connected to the computer, on an area of the identity document defined as a code window, whereby said specific numeric code univocally characterizes the holder of the identity document.
Claim 3
Dependent Claim
24 words
The procedure according to claim 1, further comprising the step of displaying the derived set of master/pattern features on a screen of the computer.
Claim 4
Dependent Claim
23 words
The procedure according to claim 1, wherein the nucleus of the identify document is provided with color lines in the form of filigrees.
Claim 5
Dependent Claim
27 words
The procedure according to claim 1, wherein the name and birthdate of the holder are coded by a color code which is printed on the code window.
Claim 6
Dependent Claim
19 words
The procedure according to claim 1, wherein a digitalized image of the holder is printed on the identity document.
Claim 7
Dependent Claim
44 words
The procedure according to claim 1, further comprising printing on the identity document one of the synthetic image of the holder and a digitalized image of the holder having one or more face features replaced by one or more of the derived master/pattern features.
Claim 8
Dependent Claim
172 words
The procedure according to any of claims 1 or 2-6, further comprising the following steps: digitalizing the face image by one of the scanner and the video camera; obtaining a black/white face image with 64 to 256 tones of gray; performing an exploration of face zones of said black/white face image using an image processing computer program to detect a horizontal zone which gives a maximum frequency of information corresponding to the eye region, where the position of a center point between the rectangular frames of each eye is obtained as a central reference point; applying a gradient operator or edge extraction on a virtual face image which is thus obtained, by means of a determined threshold of grays, whereby a resulting face image is obtained where a contour edge of the face and resulting factions/feature of eyes, noise and mouth is represented and where a background the hair has been filtered and homogenized; and measuring, on said virtual face image, the length, width and position of the eyes, nose and mouth.
Claim 9
Dependent Claim
94 words
The procedure according to claim 7, wherein the image processing computer program extracts characteristics which distinguish the face features, extracting the most marked edges, comparing a value of each pixel with a reference threshold in respect of an intensity of gray within an information rectangle selected where the eyes, nose, mouth and chin, if applicable, are defined, or else using fuzzy logic/neuronal network technology; wherein spatial composition and distribution of intensity of grays is determined within the rectangles which frame the eyes, nose and mouth, obtaining space values with respective representation of intensity vectors.
Claim 10
Dependent Claim
140 words
The procedure according to claim 8, wherein the master/pattern features are analyzed, where for each master/pattern feature, with a master size, their respective characteristics space values are obtained and the respective anthropoinetric parametric vectors, so that for any face image photograph which is processed in this way, a comparison will be established of its features taken in the form of anthropometric parameters relating to eyes, nose, mouth and chin, as the case may be, obtaining their equivalent master features in the data base on reference features whose most coincident and similar anthropometric parameters are shown in respect of initial face image and where these master features are printed on the identity card, credit card, visa or passport, by the printer which is connected to the computer, and also the numeric code or color code corresponding to the selected master features.
Claim 11
Dependent Claim
162 words
The procedure according to claim 9, wherein the computer at all times reconstructs and reproduces the face image obtained, wherein 50 to 100 most significant points of the contour edge of the face and anthropometric parameters are prefixed beforehand, measuring the distance and corresponding angle with the data process program, from the mid-center point of the eyes, obtaining a parametric code of the face image, corresponding to the face initial photograph, by approximately 400 to 600 characters (Bytes), wherein these parameters are generated and transmitted the computer over a transmission line via a modern, such that a receiver computer which is located at the other end of the transmission line is capable of receiving the characteristic parameters and reconstructing therefrom the initial face image, and wherein the receiver computer accesses the data base of master/pattern features to obtain the master features relating to eyes, nose, mouth and chin, if applicable, corresponding to the code contained in the parameters that have been received.
Claim 12
Dependent Claim
55 words
The procedure according to claim 1 further comprising authenticating the identity document by the following steps: digitizing the code window via the scanner and the computer and determining the specific numeric code printed on the code window; and representing on a screen of the computer a displayed synthetic face image derived from said master/pattern features.
Claim 13
Dependent Claim
33 words
The procedure according to claim 11, wherein the name and the birthdate of the holder is printed on the identity document, and further comprising the step of decoding the name and the birthdate.
Claim 14
Dependent Claim
18 words
The procedure according to claim 11, wherein the specific numeric code is printed in the form of numbers.
Claim 15
Dependent Claim
16 words
The procedure according to claim 11, wherein the numeric code is printed as a color code.
Claim 16
Dependent Claim
93 words
The procedure according to claim 1 further comprising authenticating the identity document by the following steps: digitizing and reading the specific numeric code printed on the document by one of the scanner and the camera; reading the face image of the holder and determining a corresponding set of master/pattern features, and determining a corresponding numeric code derived from said corresponding set; and comparing the corresponding numeric code with the specific numeric code printed on the identity document, whereby full coincidence between both codes is interpreted as a proof of authenticity of the document.
Claim 17
Dependent Claim
23 words
The procedure according to claim 1, wherein the specific numeric code is printed directly on the identity document in the form of numbers.
Claim 18
Dependent Claim
26 words
The procedure according to claim 1, wherein the specific numeric code is first translated to a color code, which is then printed on the identity document.
Claim 19
Dependent Claim
43 words
The procedure according to claim 1, wherein the specific numeric code is printed by a color printer connected to the computer, by means of one of a thermal transfer/sublimination technology, a colour ink injection technology, an electro-photography technology and a digital photography technology.
Claim 20
Dependent Claim
56 words
The procedure according to claim 1 further comprising analyzing the face image by means of the computer, wherein the computer carries out the steps of digitizing the face image, determining a position of a center print between the eyes, and determining anthropomethric paramenters relating to the length, width and position of the eyes, nose and mouth.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2001-07-27 | 2002-01-26 | 2002-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-27 | 2006-01-26 | 2006-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-27 | 2010-01-26 | 2010-07-28 | $7700.00 | Window Closed / Lapsed |