A study examined the role of relative intensity levels for auditory context in auditory graph design. Auditory graphs were designed with auditory context equally as loud as sonified data, context 9 dB more intense than data, or context 9 dB less intense than data. For a point estimation task, participants who experienced auditory graphs with more intense context performed significantly better t...

One major problem of underwater observation with an automatic engine is the instability of image acquisition and visualization. Indeed, small engines of this kind are subjected to low-frequency motions due to weak friction and water currents. In this paper, we propose to maintain stabilization in the image by controlling the pan and tilt motions of the camera attached to the engine, using techn...

Heading direction is determined from visual and vestibular cues. Both sensory modalities have been shown to have better direction discrimination for headings near straight ahead. Previous studies of visual heading estimation have not used the full range of stimuli, and vestibular heading estimation has not previously been reported. The current experiments measure human heading estimation in the...