To understand the practical challenges of indoor augmented reality applications on smartphones, researchers conducted 113 hours of extensive experiments and case studies over 316 patterns to determine the factors that degrade localization accuracy in real-world indoor environments. Landmarks for vision systems, LiDAR, and the IMU were evaluated.
To solve the identified problems, the researchers suggest radio-frequency-based localization as a potential solution for practical augmented reality applications.
"To augment reality, the smartphone needs to know two things," says Shunpei Yamaguchi, the lead author of the study."Namely, where it is, which is called localization, and how it is moving, which is called tracking." "We found that the virtual elements tend to 'drift' in the scene, which can lead to motion sickness and reduce the sense of reality," explains Shunsuke Saruwatari, the senior author of the study. The findings highlighted that visual landmarks can be difficult to find from far away, at extreme angles, or in dark rooms; that LiDAR doesn't always work well; and that the IMU has errors at high and low speeds that add up over time.
Telecommunications Engineering Detectors Virtual Reality Mobile Computing Video Games Spintronics Research
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