Perceived Weight of Mediated Reality Sticks 🏋️

IEEE Transactions on Visualization and Computer Graphics (TVCG) (2025) (To Appear)

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satoshi portrait
Satoshi Hashiguchi1
yuta portrait
Yuta Kataoka1
asako portrait
Asako Kimura1
shohei portrait
Shohei Mori2

1Ritsumeikan University, 2University of Stuttgart

hashiguchi_tvcg25_teaser.jpg
Visual stimuli. The real stick was \(60\) cm. Therefore, the conditions of \(l = 20\) and $40$ showed virtually shortened sticks while \(l = 80\) and \(100\) showed virtually extended sticks. In experiments 2-1 and 2-2, we introduced \(l_\mathrm{dim} = 10\), \(20\), \(30\), and \(40\) cm, representing sticks that are partially missing their middle portions. Note that the conditions \(l=20\) and \(l_\mathrm{dim}=40\) are the same. The conditions \(l=60\) and \(l_\mathrm{dim}=0\) are the same as the real stick. The COG of \(l_\mathrm{dim}=30\), \(20\), and \(10\) cm sticks depends on whether users recognize them as a whole or as independent parts.

Abstract Mediated reality, where augmented reality (AR) and diminished reality (DR) meet, enables visual modifications to real-world objects. A physical object with a mediated reality visual change retains its original physical properties. However, it is perceived differently from the original when interacted with. We present such a mediated reality object, a stick with different lengths or a stick with a missing portion in the middle, to investigate how users perceive its weight and center of gravity. We conducted two user studies (\(N=10\) and \(12\)), each of which consisted of two substudies. We found that the length of mediated reality sticks influences the perceived weight. A longer stick is perceived as lighter, and vice versa. The stick with a missing portion tends to be recognized as one continuous stick. Thus, its weight and center of gravity (COG) remain the same. We formulated the relationship between inertia based on the reported COG and perceived weight in the context of dynamic touch.

Previous Work This work is based on our work published at ACM VRST 2018 .

BibTex 
@article{hashiguchi_tvcg25,
    author={Hashiguchi, Satoshi and Kataoka, Yuta and Kimura, Asako and Mori, Shohei},
    journal={IEEE Transactions on Visualization and Computer Graphics (TVCG)}, 
    title={Perceived Weight of Mediated Reality Sticks}, 
    volume={},
    number={},
    pages={},
    year={2025}
}

Acknowledgement This work was partly supported by JSPS KAKENHI Grant Numbers 21K11947 and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany´s Excellence Strategy – EXC 2120/1 – 390831618. The authors also thank Ms. Miho Tanaka and Mr. Hiroki Sakiyama for their support in setting up the experiments.