Camera-based, privacy led tamper detection

A wearable device for use in immersive reality applications, comprising:

• a camera for recording a video of an onlooker, the camera having a front lens with a camera field of view pointed to the onlooker, and a display to capture the video of the onlooker;
• a recording indicator to provide a signal to the onlooker, the signal indicative that the video is being collected from the camera, the recording indicator comprising:
• a barrel to provide mechanical support to the camera;
• a cover glass mounted on the barrel, the cover glass configured to protect the front lens of the camera and the recording indicator;
• a first light emitting device disposed inside the barrel;
• and
• a light pipe inside the barrel and configured to receive a light from the first light emitting device and to transmit the light through an overlap area on the cover glass and outside of the wearable device, to the onlooker, when the camera is recording a scene outside of the wearable device, within the camera field of view, wherein the camera field of view comprises at least a portion of the overlap area;
• and
• a processor configured to identify a blockage of the camera field of view within the portion of the overlap area, and to stop recording the video when the blockage of the camera field of view is identified.