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Here is the problem description & replication steps:
Program: Intel RealSense SDK sample: Face Tracking
Version: 7.0.23.8048
Problem description: Failed to show face landmark with tracking flow “Live person -> Photo -> Live person”
Replication steps:
1.Run SDK Face Tracking sample app, under 2D view, check Scale, Detection, Landmark and Pose.
2.Start and show a live face in front of camera, the app able to detect the face and draw landmark.
3.Use photo to replace live face for about 1 min, the app can locate the fake face as screenshot, but ID number keeps increasing and landmarks shows on and off.
4.Switch back to live face, app able to show the location with yellow box, but failed to show face landmark.
Initial investigation show the QueryLandmarks() API keep returns NULL after the tracking flow as “Live face -> Photo -> Live face”.
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