Post processing of iris images to increase image quality
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United States of America Patent
Stats
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Jan 11, 2011
Issued Date -
N/A
app pub date -
May 23, 2007
filing date -
Dec 7, 2004
priority date (Note) -
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Abstract
A rapid iris acquisition, tracking, and imaging system can be used at longer standoff distances and over larger capture volumes, without the active cooperation of subjects. Light illuminates the subjects' eyes and a high resolution camera captures images of the irises. The images of the irises are processed by a post processing module to improve their quality. In one approach, the point spread function of the image capture subsystem is estimated using glint reflections from the eye, and the estimated point spread function is used in deconvolution to increase the resolution of the iris images. The post processed iris images have sufficient resolution to be used for biometric identification.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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TASCENT INC | 475 ALBERTO WAY LOS GATOS CA 95032 |
International Classification(s)

- 2007 Application Filing Year
- A61B Class
- 6528 Applications Filed
- 4835 Patents Issued To-Date
- 74.07 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Graves, J Elon | Los Gatos, US | 33 | 1242 |
# of filed Patents : 33 Total Citations : 1242 | |||
Northcott, Malcolm J | Felton, US | 51 | 1328 |
# of filed Patents : 51 Total Citations : 1328 |
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Patent Citation Ranking
- 73 Citation Count
- A61B Class
- 81.32 % this patent is cited more than
- 14 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Jun 11, 2014 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jan 11, 2011 | I | Issuance | |
Dec 22, 2010 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 20, 2007 | P | Published | |
May 23, 2007 | F | Filing | |
May 23, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NORTHCOTT, MALCOLM J.;GRAVES, J. ELON;REEL/FRAME:019335/0936 Owner name: AOPTIX TECHNOLOGIES, INC., CALIFORNIA Effective Date: May 23, 2007 |
Dec 07, 2004 | PD | Priority Date |

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