Identification of a person based on ultra-sound scan analyses of hand bone geometry

• US 20050069177A1
• Filed: 08/04/2004
• Published: 03/31/2005
• Est. Priority Date: 08/06/2003
• Status: Active Grant

• Current Assignee: Click-Into, Inc., John Ghorayeb, Volodymyr Tchouikevitch, Zinayida Bezvershenko
• Original Assignee: John Ghorayeb, Volodymyr Tchouikevitch, Zinayida Bezvershenko
• Inventors: Tchouikevitch, Volodymyr, Ghorayeb, John, Bezvershenko, Zinayida
• Granted Patent: US 7,428,319 B2
• Time in Patent Office: Days
• US Class Current: 382/115
• CPC Class Codes: A61B 5/1075 for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer A61B8/0858 takes precedence
• CPC Class Codes: A61B 5/4504 Bones A61B5/4547 takes precedence
• CPC Class Codes: A61B 5/6825 Hand
• CPC Class Codes: A61B 8/0875 for diagnosis of bone A61B5/4504 takes precedence
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: G01S 7/52036 using analysis of echo signal for target characterisation
• CPC Class Codes: G06F 18/00 Pattern recognition
• CPC Class Codes: G06V 40/10 Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
• CPC Class Codes: G06V 40/11 Hand-related biometrics; Hand pose recognition

Abstract

The invention disclosed provides a method of biometric identification of a person based on ultra-sound scan analyses of hand bones. For the purposes of identification/verification, a three dimensional (3D) ultra-sound scan of an individual'"'"'s hand bones is acquired to compare the scan with those stored in the record carrier that can be placed on the host or a remote computer.

Claims

1. A method for biometric identification of a person based on ultrasound scan analysis of bone geometry of a volumetric region of a body sufficient for identification purposes, comprising the steps of:

placing said volumetric region upon scan platen;

scanning in three dimensions over predefined area said volumetric region utilizing an ultrasonic beam;

acquiring a data volume representing bone geometry of said volumetric region;

comparing said data volume to the previously stored data to determine if match exists.

7. A method for biometric identification of a person based on ultrasound scan analyses of bone geometry of a human hand, recited in claim 1, comprising the methods recited in claim 5, wherein said volumetric region is represented by a human hand and further comprising the steps of:

placing the hand upon scan platen, wherein said platen does not have any alignment means for positioning in a fixed predefined location;

scanning said hand in three dimensions over predefined area utilizing an ultrasonic beam;

acquiring a data volume representing human hand bone geometry;

comparing the normalized data to the previously stored data to determine if match exists.

8. The method for biometric identification recited in claim 7, wherein said platen comprises alignment means for positioning of said hand in a fixed predefined location.

9. The method for biometric identification recited in claim 7, further comprising means for providing network communication inclusive of wireless for acquiring stored data from a remote record carrier for further comparison to determine if match exists.

10. The method for biometric identification recited in claim 8, further comprising means for providing network communication inclusive of wireless for acquiring stored data from remote record carrier for further comparison to determine if match exists.

11. A method for biometric verification of a person based on ultrasound scan analyses of bone geometry of a human hand, recited in claim 1, comprising the methods recited in claim 5, wherein said volumetric region is represented by a human hand and further comprising the steps of:

acquiring previously stored data of a person to be verified by entering said person PIN or using any other means for acquiring said data;

placing the hand upon scan platen, wherein said platen does not have any alignment means for positioning of said hand in a fixed predefined location;

scanning said hand in three dimensions over predefined area utilizing an ultrasonic beam;

acquiring a data volume representing human hand bone geometry;

comparing the normalized data to the previously stored data to determine if match exists.

12. The method recited in claim 11, wherein said platen comprises alignment means for positioning of said hand in a fixed predefined location.

13. The method as defined in claim 11, further comprising means for providing network communication inclusive of wireless for acquiring stored data from remote record carrier for further comparison to determine if match exists.

14. The method as defined in claim 12, further comprising means for providing network communication inclusive of wireless for acquiring stored data from remote record carrier for further comparison to determine if match exists.

15. The method recited in claim 7, wherein said hand has lost one or more entities.

16. The method recited in claim 8, wherein said hand has lost one or more entities.

17. The method recited in claim 9, wherein said hand has lost one or more entities.

18. The method recited in claim 10, wherein said hand has lost one or more entities.

19. The method recited in claim 11, wherein said hand has lost one or more entities.

20. The method recited in claim 12, wherein said hand has lost one or more entities

21. The method recited in claim 13, wherein said hand has lost one or more entities.

22. The method recited in claim 14, wherein said hand has lost one or more entities.

2. A method for biometric verification of a person based on ultrasound scan analysis of bone geometry of a volumetric region of a body sufficient for identification purposes, comprising the steps of:

acquiring previously stored data of a person to be verified by entering said person PIN or using any other means for acquiring said data;

placing said volumetric region upon scan platen;

scanning in three dimensions over predefined area said volumetric region utilizing an ultrasonic beam;

acquiring a data volume representing bone geometry of said volumetric region;

comparing said data volume to the previously stored data to determine if match exists.

3. A method for modeling bone geometry of a volumetric region of a body based on ultrasound scan, comprising the steps of:

placing said volumetric region upon scan platen;

scanning said volumetric region utilizing an ultrasound transducer array for transmitting beams and detecting ultrasound echoes reflected from said volumetric region at a multiplicity of sample volumes in a scan plane;

acquiring data derived from ultrasound echoes reflected from each one of a multiplicity of substantially parallel adjacent scan planes through said volumetric region for modeling the data volume representing a bone geometry of said volumetric region;

generating said data volume from said multiplicity of scan planes;

defining the data for the surface of said data volume;

defining the data for each bone entity of said surface of said data volume utilizing an inventor-created Entity Segregation Algorithm;

building the model representing bone geometry of said volumetric region comprising said bone entities.

5. The method recited in claim 3, further comprising an inventor-created Normalized Template Building Algorithm applied to said model representing bone geometry of said volumetric region for generating normalized data.

4. Said Entity Segregation Algorithm for defining all entities comprising a volumetric region.

6. Said Normalized Template Building Algorithm for generating normalized data comprising spatial transformation of entities of a data volume wherein transformation comprises applying transformation matrices to the coordinates of three-dimensional model.

23. A method for rendering of a human hand bone geometry, comprising the steps of:

placing the hand upon a scan platen;

scanning the hand utilizing an ultrasound transducer array for transmitting beams and detecting ultrasound echoes reflected from the hand at a multiplicity of sample volumes in a scan plane;

acquiring data derived from ultrasound echoes reflected from each one of a multiplicity of substantially parallel adjacent scan planes through the hand for modeling the data volume representing a bone geometry of the hand;

generating said data volume from said multiplicity of scan planes;

defining the data for the surface of said data volume;

defining the data for each bone entity of said surface of said data volume utilizing an inventor-created Entity Segregation Algorithm;

building the model representing said hand bone geometry comprising said bone entities;

generating rendering data representing a three-dimensional projection of said surface utilizing a inventor-created Surface Rendering Algorithm;

storing said rendering data of said three-dimensional projection.

24. Said Surface Rendering Algorithm for rendering of three-dimensional projection of said surface of a data volume.