Stack Overflow
Stack Overflow

Questions tagged [biometrics]

Biometrics is a set of methods related to unique identification of people based on physiological or behavioural traits

Biometric recognition is the process of recognizing a person's identity by analyzing some data derived from their body (physical traits, like fingerprint, iris or face) or behaviour (like gait or, to some extent, voice).

The Wikipedia page on Biometrics has more complete information.

664 questions
7
votes
6 answers

Biometrics device ping becoming failed after sometime

I have ZKTeco Biometrics device which is connected with a C# windows application using This tutorial (C# ZKTeco Biometric Device Getting Started). It is working fine but after sometime, my application becoming failed to ping the device. As below…
Muhammad Faizan Khan
  • 10,013
  • 18
  • 97
  • 186
7
votes
5 answers

C# - Fingerprint Biometrics

We are wanting to add support for fingerprint authentication in a .Net 3.5 application. We currently are only using the sdk from Griaule. But this only supports like 5 usb plug-and-play devices. We are wanting to support most readers included with…
jonathanpeppers
  • 26,115
  • 21
  • 99
  • 182
7
votes
5 answers

Create image from ISO/IEC 19794-4 image data file

I am having a Bio metric finger print scanning device and we are able to read the data scanned by image. Now we have to make the image in accordace with the ISO compliance i.e. we have to add the Binary Data Interchange Record(BDIR) with the image…
code_fish
  • 3,381
  • 5
  • 47
  • 90
6
votes
0 answers

Flutter, local_auth: Face ID authentication does not work (even though it is available)

I need to implement Face ID (biometrics) authentication inside the flutter application. I'm using flutter package "local_auth" v1.1.6 (https://pub.dev/packages/local_auth). However, the face authentication option is not available in the application…
Jan Radzimiński
  • 61
  • 3
6
votes
2 answers

Register user biometrinc finger print in flutter

Can we register a biometric fingerprint on the phone in flutter. I search about that on google and found loca_auth flutter plugin but it can only get the list of biometric fingerprints and authenticate fingerprint but what I need is to register…
TheAlphamerc
  • 795
  • 4
  • 15
6
votes
4 answers

How to make KeyDown and KeyUp on android device?

I have a question. I'm making Keystroke dynamics app on android devices. For now, I make an Activity with measure string and EditText. I want to catch KeyDown and KeyUp events on software keyboard. My question is, what is the best way to catch…
michasaucer
  • 4,562
  • 9
  • 40
  • 91
6
votes
2 answers

Is there any possible way to connect fingerprint biometric device to the website..?

Is there any possible way to connect fingerprint biometric device to the website..? I have created a web-based ERP system. As per the client requirement, I need to integrate fingerprint logging system. My website was developed with C# and angular2.…
Shazvan Hanif
  • 361
  • 3
  • 20
6
votes
1 answer

Authenticating window user using biometric system connected to LDAP server

I am trying to build one intranet application. What I am trying to do is to authenticate the user using the biometric system, fingerprints to be precise. Like in some laptops or notebooks I have seen there is a fingerprint authentication system.…
Lokesh Pandey
  • 1,739
  • 23
  • 50
6
votes
2 answers

Connecting to a Biometric device attached to Server

I have been working with a biometric device for quite some time now. I have always been able to connect a biometric device and fetch the data out of it. But this time I have been giving a very old device (Pegasus PB-7) which is connected to a…
Safi Mustafa
  • 515
  • 7
  • 22
6
votes
1 answer

C++ bitmap to base64

I have the following code to create a bitmap: //raw data PBYTE firstPixel = (PBYTE)((PBYTE)AnsiBdbRecord) + sizeof(WINBIO_BDB_ANSI_381_RECORD); // declare other bmp structures BITMAPFILEHEADER bmfh; BITMAPINFOHEADER info; RGBQUAD rq[256]; // create…
Michael
  • 363
  • 5
  • 20
6
votes
5 answers

How can I calculate the Failed Acceptance Rate and False Recognition Rate?

How can I calculate the FAR and FRR for an authentication device? (Which I assume is using Biometrics). Otherwise is their any statistics on the subject that is easily accessible?
Johnathon Starge
  • 363
  • 3
  • 7
  • 14
6
votes
1 answer

what is the best way to generate fake data for classification problem?

i'm working on a project and i have a subset of user's key-stroke time data.This means that the user makes n attempts and i will use these recorded attempt time data in various kinds of classification algorithms for future user attempts to verify…
berkay
  • 3,907
  • 4
  • 36
  • 51
6
votes
2 answers

OpenCV - Convert vector of vector to Mat

I want to convert a vector > to Mat because I need to apply a custom smooth filter to this values. The image below shows the CORRECT values I tried this. std::vector > angles; calculateAngles(angles); Mat…
Rayron Victor
  • 2,398
  • 1
  • 25
  • 25
6
votes
1 answer

Is there Any free FingerPrint identification SDK Available in .net?

I am working on a fingerprint identification system project,Is there any free sdk available for fingerprint identification system?
Praveen Kumar
  • 1,576
  • 8
  • 31
  • 47
5
votes
0 answers

Is there a standard Face Unlock icon / logo for Android?

After scouring the internet, my own Pixel phone, and at least one app that uses face unlock, I have seen this icon used as a symbol for face unlock functionality. However I have not found a downloadable image to use for mockup purposes, either in…
pollux
  • 51
  • 1
1 2
3
…
44 45