Influences of disparity cues on gamma estimation in VR displays
Virtual Reality(VR)head mounted 3D displays can present disparity cues to create an immersive interac-tive experience.Based on the human vision estimation scheme for the gamma value of the display,the influences of different disparity cues on the gamma estimation in VR displays were investigated experimentally.The subjects were asked to use an experimental software developed by unity to perform the VR display gamma estimation under different disparity levels,and the estimated results were compared with those measured by the spectrometer PR715.The experi-mental results show that when the disparity is-40 arc-minutes,the accuracy of estimated value is the highest,and the estimation error is 0.045.When the virtual depth changes from the near distance(-40 arc-minutes)to far distance(+120 arc-minute),the estimation error of human vision increases from0.045 to0.190.When the disparity changed from-40 arc-minute to-120 arc-minute,the estimation error increased slightly from 0.045 to 0.105.These results in-dicate that disparity cues influence the visual gamma estimation of subjects in VR displays.