# US 7,646,896 B2 · Apparatus and method for performing enrollment of user biometric information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,646,896 B2 - Document ID: US7646896B2 - Status: Granted - Kind: B2 - Application number: 11/485,745 - Filed: 2006-07-12 - Published: 2007-07-19 - Granted: 2010-01-12 - Earliest claimed: 2005-08-02 - Assignees: A4Vision - Inventors: Artiom Yukhin; Andrey Klimov; Sergey Suhovey; Gleb Gusev; Alexey Gostomelsky - Web page: https://patentgrep.com/patent/US7646896B2 ## CPC - G06V 40/166: {using acquisition arrangements} - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract A device for user enrollment is adapted to capture an image of a pattern projected on a target and distorted on the three-dimensional (3D) surface of the target, such as a human face, and an image of a two-dimensional (2D) surface of the target. The device can include an illumination unit adapted to project a patterned light onto the surface of the target in an invisible light wavelength, a 3D image capturing device to capture an image of a pattern projected on the target and distorted on the 3D surface of the target. The device can also include a 2D image capturing device adapted to capture an image of a 2D frontal view of the target in visible light. The device can also include an orientation unit that displays the face of the target in order to facilitate the positioning of the target within the proper fields of view. ## Claims ### Claim 1 A system for enrolling a three dimensional image of a target face comprising: an illumination unit for generating a patterned light signal having a first pattern including at least one location identifier, said patterned light signal projected in a first projection cone, wherein said first pattern is distorted onto the target face to form a distorted first pattern when said target face is positioned within said first projection cone; a 3D image capturing device for receiving an image of said distorted first pattern when the target face is positioned within a 3D camera cone; and an orientation unit having visible orientation markings for generating an image of the target face when the target face is positioned within the first projection cone and the 3D camera cone; each of said at least one location identifier of said first pattern having a pre-defined position with respect to said visible orientation markings of said orientation unit such that when said target face is oriented with respect to said visible orientation markings, pre-selected features of said target face are at or proximate said at least one location identifier. ### Claim 2 (depends on 1) The system of claim 1 wherein said patterned light has a wavelength outside of a visible light range. ### Claim 3 (depends on 2) The system of claim 2, further comprising: a 2D image capturing device for receiving a two dimensional image of the target face when the target face is positioned within a 2D camera cone. ### Claim 4 (depends on 3) The system of claim 3, further comprising: a synchronous controller, coupled to said 3D image capturing device and said 2D image capturing device to enable substantially simultaneously receiving said image of said distorted first pattern by the 3D image capturing device and said two dimensional image by the 2D image capturing device. ### Claim 5 (depends on 1) The system of claim 1, further comprising: a biometric unit, coupled to said 3D image capturing device, to identify biometric information about the target face based upon the distorted first image. ### Claim 6 A method for enrolling a three dimensional image of a target face comprising: generating, with an illumination unit, a patterned light signal having a first pattern including at least one location identifier, said patterned light signal projected in a first projection cone, wherein said first pattern is distorted onto the target face to form a distorted first pattern when said target face is positioned within said first projection cone; receiving, with a 3D image capturing device, an image of said distorted first pattern when the target face is positioned within a 3D camera cone; providing, with an orientation unit, visible orientation markings; and generating, with said orientation unit, an image of the target face when the target face is positioned within the first projection cone and the 3D camera cone each of said at least one location identifier of said first pattern having a pre-defined position with respect to said visible orientation markings such that when said target face is oriented with respect to said visible orientation markings, pre-selected features of said target face are at or proximate said at least one location identifier. ### Claim 7 (depends on 6) The method of claim 6 wherein said patterned light has a wavelength outside of a visible light range. ### Claim 8 (depends on 7) The method of claim 7, further comprising the step of: receiving a two dimensional image of the target face when the target face is positioned within a 2D camera cone. ### Claim 9 (depends on 8) The method of claim 8, further comprising the step of: substantially simultaneously receiving said image of said distorted first pattern by the 3D image capturing device and said two dimensional image by the 2D image capturing device. ### Claim 10 (depends on 6) The method of claim 6, further comprising the step of: identifying biometric information about the target face based upon the distorted first image. ### Claim 11 (depends on 2) The system of claim 2 wherein said first pattern comprises a series of horizontal lines. ### Claim 12 (depends on 11) The system of claim 11 wherein said at least one location identifier comprises at least one horizontal line dimensionally different from all remaining horizontal lines of said series. ### Claim 13 (depends on 11) The system of claim 11 wherein said at least one location identifier comprises two horizontal lines dimensionally different from all remaining horizontal lines of said series, said two horizontal lines spaced by other horizontal lines of said series. ### Claim 14 (depends on 13) The system of claim 13 wherein said two horizontal lines are thicker than from all remaining horizontal lines of said series. ### Claim 15 (depends on 13) The system of claim 13 wherein said orientation unit comprises a mirror. ### Claim 16 (depends on 13) The system of claim 13 wherein said orientation unit comprises an electronic display. ### Claim 17 (depends on 7) The method of claim 7 wherein said first pattern comprises a series of horizontal lines. ### Claim 18 (depends on 17) The method of claim 17 wherein said at least one location identifier comprises at least one horizontal line dimensionally different from all remaining horizontal lines of said series. ### Claim 19 (depends on 17) The method of claim 17 wherein said at least one location identifier comprises two horizontal lines dimensionally different from all remaining horizontal lines of said series, said two horizontal lines spaced by other horizontal lines of said series. ### Claim 20 (depends on 19) The method of claim 19 wherein said two horizontal lines are thicker than from all remaining horizontal lines of said series.