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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.

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Samsung Devices OS 9.0 throw 'android.security.KeyStoreException: Key user not authenticated', when the "Preferred Biometric" is 'Face recognition'

We implemented new android.hardware.biometrics.BiometricPrompt replacing the existing android.hardware.fingerprint. The new Biometrics API works as expected until we have the 'Preferred Biometric' as 'Fingerprint'. When we set the 'Preferred…
Ganga
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Returning false while connecting bio metric machine using C#

I want to connect bio metric machine using C#. I am using zkemkeeper dll for connecting with machine I have used connect_net method to connect with ip address and port public partial class Form1 : Form { public zkemkeeper.CZKEM machineObj =…
Chitra Nandpal
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Face recognition authentication in android

Similar to fingerprint authentication for apps, i am trying to implement face recognition authentication in one of my android app. Can anyone guide me on how to achieve the same using any library or anything.
imi
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Android crashed after updating androidx biometric to 1.0.0-alpha04

Everything works fine with 'androidx.biometric:biometric:1.0.0-alpha03', however when I build my project with the latest 'androidx.biometric:biometric:1.0.0-alpha04' and call myBiometricPrompt.authenticate(promptInfo) it throws this exception:…
chabislav
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How to convert fingerprint to unique id to use it for searching in database?

I have fingerprint reader secugen and I have been able to get my application to control the fingerprint device by scanning fingerprints and I have been able to save them to mysql database! After saving the fingerprints to the db, I now want to…
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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
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Integrate MorphoSmart sdk in android

I want to integrate Morphosmart sdk (comes with Safran Morpho device, used for biometric fingerprint scanning in Aadhar) with my android app. Morpho device is connected to android device via a USB cable, when the user give his fingerprint on the…
Mayank1987
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Android fingerprint API for time attendance app

I would like to build an app which allows employees to scan fingerprint with the support of Android app. Right now most fingerprint API (Touch ID or Android Imprint) only allows login to app. Is there any 3rd party API that allows usage of API to…
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Open set face recognition - what score to give to query faces not present in gallery?

Scenario: In closed-set face recognition, if we have 10 people in a Gallery set, then the query images will be from among these 10 people. Each query will thus be assigned to one of the 10 people. In open-set face recognition, query faces may come…
AruniRC
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face alignment algorithm on images

How can I do a basic face alignment on a 2-dimensional image with the assumption that I have the position/coordinates of the mouth and eyes. Is there any algorithm that I could implement to correct the face alignment on images?
Rory Lester
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Biometrics Fingerprint is giving somebody else's information

I have this Biometrics, but it gives me the completely wrong output - the different userid and the verify date at year 2132. What can be causing such wrong information? I couldn't find any similar problem on Internet. Does anyone else have…
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FragmentManager is already executing transactions when Executing biometricPrompt?.authenticate(promptInfo) inside a Fragment

If you create biometricPrompt and promptInfo in the activity, it works fine. But I can't manage to make it work inside a fragment. This is inside of a fragment and it gets called inside OnViewCreated. You do the same inside an activity it works…
WinterChilly
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Android Fingerprint Raw Data

Does Android's fingerprint sensor implementation support direct access of raw fingerprint data i.e. the actual pattern on the finger? I don't mean the stored secure fingerprint that is used for unlocking the device and making payments, but just…
Freddy Tuxworth
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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
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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
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