Multi-biometric feature normalization method

Abstract

The invention discloses a multi-biometric feature normalization method. The method comprises the following steps: S1, inputting biometric feature data into an acquired database; S2, extracting newly added biological feature data, and constructing a personnel physical evidence entity relationship; establishing a relationship between the data according to different biological feature acquisition record tables and the data acquired in different batches, and establishing an entity relationship table; S3, constructing node and connection data; S4, constructing a tree structure by adopting a galleryalgorithm; S5, establishing a suspect acquisition biological feature normalization data warehouse; and S6, establishing a biological person archive page, and displaying data. According to the invention, the acquired biological feature data of the same person can be accurately grouped to establish the suspect acquisition biological feature normalization data warehouse, so that all historical entryinformation of each person and whether the acquired biological features of each time have a phenomenon of comparison with the physical evidence of a certain case site can be conveniently inquired anddisplayed; and the identity of a person whose historical data identity card is not real is confirmed.

Description

technical field [0001] The present invention relates to the field of public security criminal technology, and more specifically relates to a multi-biological feature normalization method. Background technique [0002] In the daily work of the police at the current police station, they usually collect fingerprints, iris, DNA and other biological characteristics when registering the identity information of people who enter the station due to a certain case or other disputes. During the registration process, the police will use the ID number carried by the other party or the ID number dictated to confirm whether the ID number has a criminal record or is a suspect in an unsolved case. [0003] At present, the basic identity information and various biometric data sheets collected by suspects are stored. The storage methods are roughly divided into: basic information sheets for personnel collection, and information sheets for other professional collections. The above tables canno...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a multi-biological feature normalization method to solve the problem that if the same person uses different ID cards for many times, the interference cannot be accurately eliminated and the identity of the person cannot be known. The suspect in a certain case cannot be captured and solved in a timely manner, so as to accurately group the biometric data collected by the same individual multiple times to establish a data warehouse for the collection of suspect biometrics, so as to query and display all the historical entries of the person Information and whether the biological characteristics collected each time there is a phenomenon that matches the physical evidence of a certain case, and assists in confirming the identity of the person whose ID card is not true in the historical data

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