In a virtual reality (VR) environment, physical walking as a means of transportation can enhance the sense of realism felt by the body. However, there is a problem with the large area required for such walking. In this paper, we propose a walking technique that can move forward infinitely by converting the motion of rotation into a forward real-walking, and clarify the relationship between walking sensation and gaze for this technique.
We conducted two psycho-visual experiments in the gaze behavior of depth perception in VR space. The first is a psycho-visual experiment of depth gaze behavior in the change of transparency of imaginary images related to HoloLens, and the second is a psycho-visual experiment of depth gaze behavior related to 3D reversed vision images. Interesting results were obtained in both experiments.
The authors have found a phenomenon in which the blinking speed appears to be faster when the beta motion is viewed in peripheral view. In this paper, we focused on the beta motion on the circle and conducted an experiment on how it looks in peripheral vision. As a result of the experiment, it is understood that the speed increases as the retinal eccentricity increases regardless of the annular ring size. In addition, it became clear that as the retinal eccentricity in the horizontal direction increases, the apparent shape of the beta motion tends to change from the annular ring shape.
We described the evaluation method of stereoscopic images by using perspective images with continuity that is easy to feel a depth in 2D images. In this paper, we propose a new 3D evaluation method, using reversed images and an evaluation item of an incongruity. As a result, in terms of the perspective image, we got the effectiveness of the evaluation item “incongruity” in three evaluation items of depth feeling, stereoscopic feeling, incongruity.
The h-Index is frequently used to evaluate researchers. However, the index is not suitable for young researchers because they typically have only a few prior achievements. In this paper, we evaluate the potential of JSPS research fellows using the h-index and the betweenness centrality of co-author networks. The results show that the new measure appropriately evaluates the potential of young researchers at their early stage, as compared with the h-index.
The following three visual phenomena have been confirmed as a visual effect occurring at an edge having a density change: (a) Mach band, (b) Chevreul illusion, and (c) the Craik-O'Brien-Cornsweet effect. These are considered to be different phenomena. In our previous research, it was found that by varying the blurred edge width the density value of the image changed and the contrast decreased approximately by 20% at the maximum. From this phenomenon, it was possible to explain to some extent the relevance of the above three phenomena by the edge width. Furthermore, under the research of gazing time and edge blurring phenomenon, we confirmed that edges disappear with low contrast. In this paper, we focus attention on the gazing time and conduct an evaluation experiment on how much the Troxler effect occurs, using the density difference of the presented image as a parameter. We also investigate the evaluation of the Mach band at that time. Through these experiments, it is possible to show the experimental results that clarify the relationship between the four phenomena.
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