Passive Liveness Detection From Image

Configuration

To use any Sybrin SDK you will need a Sybrin issued license. You can have a look at our licensing page to request a license.

Using the license provided you will need to build and instance of the SybrinLivenessDetectionConfiguration class that will help with configuring the SDKs' behavior.

For example:

SybrinLivenessDetectionConfiguration sldc = new SybrinLivenessDetectionConfiguration
        .Builder(<sybrin_license_here>)
        .build();

To see the full range of configuration available please visit the SybrinLivenessDetectionConfiguration page

Calling feature

To start the active liveness detection process you will need to get an instance of the SybrinLivenessDetection class using the configuration built earlier. Running single image liveness detection is as simple as running the passiveLivenessDetectionFromImage method and providing it with a Bitmap as a parameter. Finally you can register for the 3 different callbacks right on the method call.

For example:

SybrinLivenessDetection sld = SybrinLivenessDetection.getInstance(this, sldc);

Bitmap image = getBitmap();

si.passiveLivenessDetectionFromImage(image)
        .addOnSuccessListener(new PassiveLivenessDetector.OnSuccessListener<PassiveLivenessDetectionModel>() {
            @Override
            public void onSuccess(SingleImagePassiveLivenessDetectorresult) {
                // Handle success
            }
        })
        .addOnFailureListener(new SingleImagePassiveLivenessDetector.OnFailureListener() {
            @Override
             public void onFailure(LivenessDetectionException lde) {
                // Handle failure
            }
        });

Subscribing to any of the callbacks on the passiveLivenessDetectionFromImage method is optional.

Handling callback responses

There are 3 different callbacks that can be subscribed to. They are as follows:

OnSuccessListener

When the SDK has completed the liveness detection process the result will be posted to the OnSuccessListener.onSuccess callback. The PassiveLivenessDetectionModel is returned as a result.

For example:

si.passiveLivenessDetectionFromImage(image)
        .addOnSuccessListener(new SingleImagePassiveLivenessDetector.OnSuccessListener<PassiveLivenessDetectionModel>() {
            @Override
            public void onSuccess(PassiveLivenessDetectionModel result) {
                
                // Handle success
                boolean isAlive = result.isAlive();
            }
        });

OnFailureListener

When the SDK encounters an error a LivenessDetectionException is posted to the OnFailureListener.onFailure callback. The LivenessDetectionException will contain all the needed information to help solve the issue causing the error.

For example:

si.passiveLivenessDetectionFromImage(image)
        .addOnFailureListener(new SingleImagePassiveLivenessDetector.OnFailureListener() {
            @Override
             public void onFailure(LivenessDetectionException lde) {
            
                // Get error message
                String error = lde.getLocalizedMessage();
            }
        });

If you would like to report a bug, contact us!

Full example

Activity.java

nLivenessDetectionConfiguration sldc = new SybrinLivenessDetectionConfiguration
        .Builder(<sybrin_license_here>)
        .build();
        
SybrinLivenessDetection sld = SybrinLivenessDetection.getInstance(this, sldc);
   
Bitmap image = getBitmap();

si.passiveLivenessDetectionFromImage(image)
        .addOnSuccessListener(new SingleImagePassiveLivenessDetector.OnSuccessListener<PassiveLivenessDetectionModel>() {
            @Override
            public void onSuccess(PassiveLivenessDetectionModel result) {
                
                // Handle success
                boolean isAlive = result.isAlive();
            }
        })
        .addOnFailureListener(new SingleImagePassiveLivenessDetector.OnFailureListener() {
            @Override
             public void onFailure(LivenessDetectionException lde) {
            
                // Get error message
                String error = lde.getLocalizedMessage();
            }
        });