Dynamic adjustment of stereo display parameters

Abstract

Abstract-A review of the facts about human stereo vision leads to the conclusion that the human stereo processing mechanism is very flexible in the presence of other depth cues. Stereopsis seems to provide only local additional depth information, rather than defining the overall 3D geometry of a perceived scene. This paper reports on an experimental approach to adjusting stereo parameters automatically and thereby providing a low eye strain, easily accommodated stereo view for computer graphics applications. To this end the concept of virtual eye separation is defined. Experiment 1 shows that dynamic changes in virtual eye separation are not noticed if they occur over a period of a few seconds. Experiment 2 shows that when subjects are given control over their virtual eye separation, they change it depending on the amount of depth in the scene. Based partly on these results, an algorithm is presented for enhancing stereo depth cues for moving computer generated 3D images. It has the effect of doubling the stereo depth in flat scenes and limiting the stereo depth for deep scenes. It also reduces the occurrence of double images and the discrepancy between focus and vergence. The algorithm is applied dynamically in real time with an optional damping factor applied so the disparities never change too abruptly. Finally Experiment 3 provides a qualitative assessment of the algorithm with a dynamic "flight" over a digital elevation map.

Development and Evaluation of an Easy-to-Use Stereoscopic Ability Test to Assess the Individual Ability to Process Stereoscopic Media

“…In practice, this means that due to physical limitations, stereoscopy is limited to a smaller area of depth perception than real stereo vision [20]. For long-term interactions, applications should even limit the use of depth cues to only a small portion of this area (Percival's Zone of Comfort [21]).…”

Spatial Mapping in virtuellen Umgebungen

“…(Dörner, Ralf & Steinicke, 2013, S. 49). In Studien wurde dieser Bereich in Abhän-gigkeit zur Displayentfernung empirisch ermittelt (Ware, C., Gobrecht & Paton, 1998 Face-to-Face-Kommunikation mit anderen Menschen (Durlak, 1987). Die Interaktion mit virtuellen Umgebungen soll dabei auf Erfahrungen und Erwartungen des menschlichen Wahrnehmungsapparates aufbauen (Steuer, 1992).…”

ImprovedCubemapmodel for 3D navigation in geo-virtual reality

“…Ware, Gobrecht, and Paton (1995) conducted experiments to identify how users adjust stereoscopy parameters and how those users would react to the dynamic adjustment of those values. With these data, Ware, Gobrecht, and Paton (1998) created a two-pass algorithm to appropriately adjust the virtual eye separation and the zero parallax plane distance with the Z-buffer of the main camera. Wartell et al (2009) enhanced Ware's model to apply to different types of s3D display configurations.…”