how to improve my English writing

Hi. i am going to  write some English  related to my research  paper .Please help me to  correct my English.

Abstract:

Mobile Biometric Challenge Recording Interface

 In computer   network, authentication is the process of attempting to verify the digital identity through the use of login passwords. Knowledge of the passwords is assumed to guarantee that the user is authentic. Likewise, Users may biometrically authenticate via their fingerprint, voice, face, or using provided hardware and password in order to confirm the operation. However, when a large number of users are involved this type of authentication is not suitable because this solution may become too slow and relatively expensive.  In brief, successful distribution of a biometric authentication system needs careful deliberation of many factors (PBworks, 2007).

My thesis core will be to study different biometric authentication techniques, derive requirements from these for a mobile interface, and implement and refine an interface prototype.

When a biometric sample or trait is acquired, such as a video or a voice sample, the captured data goes through some amount of processing to prepare it for the extraction of a relatively small set of numbers, which represent the most unique aspects of the data. This extracted set of data in record called a recording template. However, to prepare this recording optimally for biometric algorithms several measures already have to be taken on the phone.

There are two basic usage scenarios for biometrics, known as verification and identification.

Verification is the scenario where a newly created template is compared with only one other template in a database, which is described as a one-to-one comparison.  The second biometric usage scenario is called identification, which is used when it is necessary to compare a newly created template to many enrolled templates, which is described as a one-to-many comparison. Both scenarios have to be supported by such a recording interface.

Bibliography

PBworks. 2007. Authentication technologies. Biometrics. [Online] 2007. [Cited: 30 3 2012.] http://biometrics.pbworks.com/w/page/14811351/Authentication%20technologies.

Bibliography

PBworks. 2007. Authentication technologies. Biometrics. [Online] 2007. [Cited: 30 3 2012.] http://biometrics.pbworks.com/w/page/14811351/Authentication%20technologies.