New Technology Enables Natural Accommodation Cues in 3-D Displays

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A feeling of dizziness or nauseous usually comes after watching a 3D movie is because of human brain’s subconscious activity. This happens when human subconsciously detects the subtle differences between the real world and the virtual 3D scene. 3D displays intend to produce a scene to our eyes which is indistinguishable from reality. To acquire this, 3D displays need to deceive the perceptual cues which human visual system deploys for sensing the world. Depth perception capability is the hardest one among all the perceptual cues which 3D displays need to deceive.

Furthermore, our eyes have two dominant cues to perceive depth, namely vergence and accommodation. Through using vergence when the eyes fixate on an object, the accommodation ensures the object comes into focus. Both of these cues drive each other to sense the real world’s sharpness or to perceive depth as well.

CMU Researchers New Technology Generates More Magnitude Displays

Carnegie Mellon University (CMU) researchers have introduced a new technology to activate natural accommodation cues in 3D displays. This technology helps in generating many virtual displays that locate at different depths. Consequently, human eyes cannot differentiate the real world from this virtual displays because of the densely dispersed depths.

Although, the idea of putting display layers at different depths is not the latest one. However, CMU researchers’ new technology intends to generate an order of more magnitude displays to provide unprecedented immersion. This new technologically revised display differs from the typical VR display in the area of modifying focal length.

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