justin200914 / FaceLivenessDetection-Android-1

This is a demo project for 3D passive face liveness detection, which is an anti-spoofing technology.

FaceLivenessDetection-Android

Introduction

This demo showcases a 3D passive liveness detection technique for detecting spoofed faces.

In real-time, a single image captured from the Android camera computes a liveness score.

Screenrecorder-2023-03-09-20-39.mp4

Try the APK

Google Play

Google Drive

https://drive.google.com/file/d/1U7-wHmRYb8VV32kOb6JdG_sdZA_3bSLe/view?usp=sharing

SDK License

This project uses kby-ai's liveness detection SDK. The SDK requires a license per application ID.

• The code below shows how to use the license: https://github.com/kby-ai/FaceLivenessDetection-Android/blob/f81f001b0a2f65330d2adaabc9b001003af9a112/app/src/main/java/com/kbyai/facelivedemo/CameraActivity.java#L69-L77

• To request a license, please contact us:

Email: [e-mail]

Telegram: @kbyai

WhatsApp: [phone]

Skype: live:.cid.66e2522354b1049b

About SDK

Set up

1. Copy the SDK (libfacesdk folder) to the root folder of your project.

2. Add SDK to the project in settings.gradle

include ':libfacesdk'

3. Add dependency to your build.gradle

implementation project(path: ':libfacesdk')

Initializing an SDK

• Step One

To begin, you need to activate the SDK using the license that you have received.

FaceSDK.setActivation("...")

If activation is successful, the return value will be SDK_SUCCESS. Otherwise, an error value will be returned.

• Step Two

After activation, call the SDK's initialization function.

FaceSDK.init(getAssets());

If initialization is successful, the return value will be SDK_SUCCESS. Otherwise, an error value will be returned.

Face Detection and Liveness Detection

The FaceSDK offers a single function for detecting face and liveness detection, which can be used as follows:

FaceSDK.faceDetection(bitmap)

This function takes a single parameter, which is a bitmap object. The return value of the function is a list of FaceBox objects. Each FaceBox object contains the detected face rectangle, liveness score, and facial angles such as yaw, roll, and pitch.

Yuv to Bitmap

The SDK provides a function called yuv2Bitmap, which converts a yuv frame to a bitmap. Since camera frames are typically in yuv format, this function is necessary to convert them to bitmaps. The usage of this function is as follows:

Bitmap bitmap = FaceSDK.yuv2Bitmap(nv21, image.getWidth(), image.getHeight(), 7);

The first parameter is an nv21 byte array containing the yuv data.

The second parameter is the width of the yuv frame, and the third parameter is its height.

The fourth parameter is the conversion mode, which is determined by the camera orientation.

To determine the appropriate conversion mode, the following method can be used:

 1        2       3      4         5            6           7          8

 888888  888888      88  88      8888888888  88                  88  8888888888
 88          88      88  88      88  88      88  88          88  88      88  88
 8888      8888    8888  8888    88          8888888888  8888888888          88
 88          88      88  88
 88          88  888888  888888

References

• Face Recognition - Android