Post processing of iris images to increase image quality

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United States of America Patent

PATENT NO 7869627
SERIAL NO

11752899

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
TASCENT INC475 ALBERTO WAY LOS GATOS CA 95032

International Classification(s)

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  • 2007 Application Filing Year
  • A61B Class
  • 6528 Applications Filed
  • 4835 Patents Issued To-Date
  • 74.07 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200720082009201020112012201320142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Graves, J Elon Los Gatos, US 33 1242
Northcott, Malcolm J Felton, US 51 1328

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Patent Citation Ranking

  • 73 Citation Count
  • A61B Class
  • 81.32 % this patent is cited more than
  • 14 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges421001617385264195138110108917036301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650700750800850900950100010501100

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