| Title |
A Method for Correcting Errors in Three-dimensional Distance Perception of Virtual Objects in Augmented Reality |
| Authors |
이주형(Ju Hyeong Lee) ; 주성준(Sung Jun Joo) |
| DOI |
https://doi.org/10.5573/ieie.2025.62.3.49 |
| Keywords |
Augmented reality; Virtual object; 3D distance perception; Inter-pupillary distance |
| Abstract |
There are inherent errors in perceiving the three-dimensional distance of virtual objects within virtual/augmented reality environments. In this study, we propose a method to improve the perception of three-dimensional (3D) distance errors of virtual objects, considering the inter-pupillary distance. This method is tailored for commercially available augmented reality devices in the form of glasses, where the distance between displays cannot be adjusted. We conducted tasks involving matching the distances of physical objects and virtual objects. We calculated the pixel disparities for virtual objects, and we found that participants perceived objects at close distances (~80 cm) relatively accurately. However, they consistently underestimated the distances of virtual objects presented at greater distances (100, 200, 300 cm). Importantly, we found a significant correlation between the magnitude of 3D distance perception errors and the inter-pupillary distances of participants. Furthermore, we investigated whether these errors in 3D distance perception of virtual objects were due to miscalculated pixel disparity. By applying the offset of pixel disparities caused by differences between the distance between display centers and inter-pupillary distances, we were able to significantly reduce underestimation, accurately predicting perceived 3D distances up to 200 cm. These findings suggest an effective and cost-efficient method for correcting 3D distance perception errors of virtual objects in commercially available augmented reality devices. |