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 Title: |
US6064753:
System and method for distortion control in live-scan inkless fingerprint images
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Bolle, Rudolf Maarten; Bedford Hills, NY
Germain, Robert Steven; Tuckahoe, NY
Garwin, Richard Lawrence; Scarsdale, NY
Levine, James Lewis; Yorktown Heights, NY
Pankanti, Sharathchandra Umpathirao; Mt. Kisco, NY
Ratha, Nalini Kanta; White Plains, NY
Schappert, Michael Alan; Fishkill, NY
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| Assignee: |
International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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| Published / Filed: |
2000-05-16
/ 1997-06-10
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| Application Number: |
US1997000872639
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| IPC Code: |
Advanced:
G06K 9/00;
G06T 1/00;
G06T 7/00;
Core:
more...
IPC-7:
G06K 9/00;
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| ECLA Code: |
G06K9/00A1; G06K9/00Q;
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| U.S. Class: |
Current:
382/125;
340/005.53;
340/005.83;
356/071;
382/126;
382/127;
Original:
382/125;
382/126;
382/127;
340/825.34;
356/071;
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| Field of Search: |
382/115-116,120-121,124-127
340/825.3,825.31,825.34
356/071
250/227.11,227.2
235/380,382,382.5
348/156
324/686,692,693
345/173-175
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| Priority Number: |
| 1997-06-10 |
US1997000872639 |
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| Abstract: |
A computer system and method determines the force and/or torque applied during the image acquisition stage of a biometric characteristic. Images with very high or very low pressure or high shear torque are rejected and user/operator is notified to re-acquire the image. Alternatively, the application of force and torque by the subject is restricted mechanically so that the images are acquired while the force and/or torque are within acceptable ranges.
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| Attorney, Agent or Firm: |
Percello, Louis J.F. Chau & Associates, LLP ;
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| Primary / Asst. Examiners: |
Mehta, Bhavesh;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
Show 5 known family members
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First Claim:
Show all 19 claims |
We claim:
1. A system for ensuring the acceptability of a biometric image by measuring the force of contact, the system comprising:
- a. an image capturing device that captures biometric images by contact and is receptive to one or more components of the force of contact;
- b. an acceptor which accepts the biometric image only if one or more of the components is within a respective range of force having a predetermined upper limit and a predetermined lower limit, and
- c. means for detecting liveliness of the captured biometric measurement by measuring a variation of one or more of the force components over a time period.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 38 U.S. patent(s) that reference this one
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