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Mechanical Design
Two different versions of the WearCam have been developped, a mounted on a cap (WearCam III) and a mounted on a headband (WearCam III Ti) one.
WearCam III
The WearCam III is used in situations when the child is not free of moving, for example during a psychological study. To get more
information on the child's field of view, two cameras are used. This allows to have information from both the interaction zone (top camera)
and the manipulation zone (bottom camera), as well as the gaze direction. Two microphones provide audio information, which can be used in
studies on audio-visual coordination and interation. The cameras are mounted on a simple baseball cap.
With the presence of the camera, it is not possible to power this system with a simple battery, and a wire and connector is used to
retrieve the audio and video data, as well as powering the whole system. The video can be retrieved either using two USB capture devices, or mobile video recorders.
 The WearCam cap, with the two cameras, microphones and cable connector |
 The complete WearCam system, and the WearCam worn by a young child |
WearCam III Ti
The WearCam III Ti should also be used in situations when the child is not completely free of moving. The mounting on a headband
allows for even less obtrusion in the visual field of the wearer, where only the small mirror can be seen in the upper part of the field
of view. Also, the slight adjustment of the mirror position to reflect the eyes is now controlled by a small servo-motor operated by a
remote controller, thus removing the need to manipulate the cap once it is fastened to the child's head.
 The WearCam headband, with the two cameras, microphones and cable connectors; the remote controller for the mirror |
 The complete WearCam system; the WearCam worn by a young child |
Videos
Selected publications
People involved in this project