Dynamic lens and monovision 3D displays to improve viewer comfort
This addresses visual discomfort for viewers of stereoscopic 3D displays, but appears incremental as it builds on existing conflict-reducing techniques with simpler implementations.
The paper tackled the problem of vergence-accommodation conflict in stereoscopic 3D displays, which causes visual discomfort, by proposing two new techniques that are simpler to implement than previous methods, resulting in reduced discomfort and increased visual performance.
Stereoscopic 3D (S3D) displays provide an additional sense of depth compared to non-stereoscopic displays by sending slightly different images to the two eyes. But conventional S3D displays do not reproduce all natural depth cues. In particular, focus cues are incorrect causing mismatches between accommodation and vergence: The eyes must accommodate to the display screen to create sharp retinal images even when binocular disparity drives the eyes to converge to other distances. This mismatch causes visual discomfort and reduces visual performance. We propose and assess two new techniques that are designed to reduce the vergence-accommodation conflict and thereby decrease discomfort and increase visual performance. These techniques are much simpler to implement than previous conflict-reducing techniques.