No abstract

Virtual reality facilities have matured in recent years; however, cybersickness has yet remained a major issue in the virtual reality content. The researchers in this study attempt to simulate the different focal points and depth of field of human vision with an eye on reducing cybersickness by implementing blurring. This paper introduces a new type of technology-texture blur, which was tested in three experiments with different contents in this study. The participants were asked to verbally answer two questionnaires: a discomfort level questionnaire and a simulator sickness questionnaire (SSQ). The results were analyzed to compare the seriousness of the participants' cybersickness with and without texture blur in the virtual reality content. The experiment results revealed that the participants with texture blur had lower discomfort level scores. The SSQ results also went in line with the previous questionnaire, showing better results with texture blur. Hence, the researchers concluded that texture blur can effectively reduce users' cybersickness in virtual reality content.

This study proposes a head-mounted holographic display systems which adopts modified Gerchberg Saxton algorithm (MGSA) to produce the point composition of the computer generated phaseonly function (CGPOF), and transfers the information to LCoS with presenting. The diffraction images can be transferred through the eyepiece and imaged on the retina. In this study, Zemax is used for the design and optimization of the eyepiece, and the zoom mechanism of human eyes which can image on the retina is also considered. Finally, the objective image quality of the head-mounted holographic display system is analyzedAuthor Keywords computer generated holography; the head-mounted display system; 3D modified Gerchberg-Saxton algorithm; image quality evaluation P-226L / C.-H. Chuang Late-News Poster 1656 • SID 2017 DIGEST

This Letter proposes to apply full-color computer-generated holograms to the virtual image projection system so that the viewers can comfortably view floating images. Regarding the spatial division and distribution operation, a modified Gerchberg-Saxton algorithm is used for acquiring the phase infographics, which are input into the spatial light modulator for the reconstructed projection. Such a virtual image projection system could reach the vertical angle of view of 15°-75°and the horizontal angle of view 360°, and the mixed-light modulating proportion contains a 3 mW red light laser, a 2 mW green light laser, and a 2.6 mW blue light laser to achieve the full-color mixed-light proportion with a speckle contrast of 6.65%. The relative diffraction efficiency and root mean square error of the reconstructed image are 95.3% and 0.0524, respectively.

In order to reduce motion sickness (MS), texture blur (TB) was used on the 3D objects in the First Person Shooting VR game. Simulator Sickness Questionnaire and ECG data were analyzed in our study, and significant differences were found by comparing "with TB" and "without TB" conditions.