VB.net Serialization and Deserialization

I'm new to VB.NET and working with fingerprints.

How to use the OTW SDK for m UAREU FPscanner?

I succeeded in storing fingerprint to database as an array of bytes by serializing it. Is it a good idea to compare the stored array of bytes or it is mandatory to de-serialize the image and then compare?

Will this approach work?
Any help or guidance would be highly appreciated. Thanks!