Re: What is the most difficult search operations for criminal finger print

From: <wtxwtx_at_gmail.com>
Date: 10 Jan 2006 18:22:20 -0800
Message-ID: <1136946140.258804.107880_at_z14g2000cwz.googlegroups.com>


Hi,
Some grammer correction for 3.

3. The finger print database is closely linked to a finger print encoding. While doing search, finger print picked up from the field is used to generate a match pattern, then the encoding method determines how the match pattern is generated. Finally the match pattern is used to scan all database data to see if there is any match between one of stored finger print data with match pattern data. That means, for example, one full set of finger print needs 256 bytes, a match pattern has its 256 data, then a comparison is made between the 256 bytes to see if they are matched. During match process some bit comparison results are masked or
some bits are masked before doing match. In search process, I think there is no need to know how finger print is encoded. Is it correct?

Thank you.

Weng Received on Wed Jan 11 2006 - 03:22:20 CET

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