FaceTracker Class

Namespace: id3.Face

Definition

Tracks faces on consecutive images and automatically creates and updates associated face templates.

Python

class FaceTracker

Dart

class FaceTracker implements Finalizable

C#

public partial class FaceTracker

Java

public class FaceTracker implements AutoCloseable, Serializable

Swift

public class FaceTracker

C

typedef struct id3FaceTracker *ID3_FACE_TRACKER;

Usage

Python

faceTrackerInstance = id3face.FaceTracker()

Explicit destruction

# ...
del faceTrackerInstance

Dart

final faceTrackerInstance = sdk.FaceTracker();
// ...

Explicit destruction

// ...
faceTrackerInstance.dispose()

C#

using (var faceTrackerInstance = new FaceTracker())
{
   // ...
}

Explicit destruction

var faceTrackerInstance = new FaceTracker()
// ...
faceTrackerInstance.Dispose()

Java

try (FaceTracker faceTrackerInstance = new FaceTracker()) {
// ...
}

Explicit destruction

FaceTracker faceTrackerInstance = new FaceTracker();
// ...
faceTrackerInstance.close();

Swift

private var faceTrackerInstance: FaceTracker? = nil
faceTrackerInstance = try FaceTracker()

C

ID3_FACE_TRACKER hFaceTracker{};
int err = id3FaceTracker_Initialize(&hFaceTracker);
if (err == ID3_SUCCESS) {
    // ...
    id3FaceTracker_Dispose(&hFaceTracker);
}

Properties

Name	Type	Description
confidenceThreshold	int	Confidence threshold, in the range [0;100].
detectionModel	FaceModel	Model used to detect and track faces.
encodingModel	FaceModel	Model used to create features and assess consistancy among views of a given face.
matchThreshold	int	Minimum match score to reach to preserve the ID of a tracked face between frame ‘t-1’ and frame ‘t’.
maximumTrackedFaceAge	int	Maximum number of consecutive non-detections to reach before deleting a tracked face.
minimumTrackedFaceAge	int	Minimum number of consecutive detections to reach before creating a tracked face.
nmsIouThreshold	int	Non-maximum suppression (NMS) intersection-over-union (IOU) threshold, in the range is [0;100].
threadCount	int	Number of threads to be used for face detection and tracking.

Methods

Name	Description
detectFaces	Detects faces in an image and update their info in a TrackedFaceList object.
trackFaces	Tracks faces in an image and update their info in a TrackedFaceList object.
warmUp	Gets the face tracker module ready to work on a specific image size by initializing all its internal memory layout.