Image analysis – Applications – Personnel identification
Reexamination Certificate
2004-12-07
2009-11-03
Mehta, Bhavesh M (Department: 2624)
Image analysis
Applications
Personnel identification
C382S115000, C382S120000, C382S126000, C382S127000
Reexamination Certificate
active
07613334
ABSTRACT:
The invention is directed to a method and an arrangement for the optoelectronic recording of a moving object, particularly for recording a finger that is rolled on a support surface. It is the object of the invention to find a novel possibility for electronic recording of rolled fingerprints which enables high-resolution individual images with a high image rate for joining the individual images without gaps to form a total image by means of simple sensors. This object is met, according to the invention, in that a shape surrounding the object is determined from the position and size of the object in at least one of the individual images read out from the image recording unit, in that a rectangle which is enlarged by tolerance allowances and which is oriented parallel to the row direction and column direction of the sensor is determined from the surrounding shape, and in that the enlarged rectangle is used to predict and adjust the size and position of an active pixel area of the image recording unit for at least one image to be read out subsequently, so that the read out active pixel area of the image recording unit is always kept small due to its adaptation and a higher image rate is realized in the sensor readout or data transfer.
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Ratha, et al. “Image Mosiacing for Rolled Fingerprint Construction” pp. 1651-1653, 1998.
Eichhorn Torsten
Friedl Andy
Gerling Torsten
Morgeneier Dirk
Standau Joerg
Cross Match Technologies GmbH
Mehta Bhavesh M
Reed Smith LLP
Thirugnanam Gandhi
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