Environment understanding during walking via modality conversion from visual to haptic information: localization experiment with vibro-stimuli simulated by optical flow

Morita, Shinichiro; Kanehara, Yoshihiro; Kito, Kazuho; Katoh, Harumi; Mukawa, Naoki; Nakamura, Akio

doi:10.1117/12.2566949

Cited by 2 publications

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“…So far, the developed system enables us to spatially localize walls and apertures, two environmental elements, and clarified which kinds of vibration are effective in each perception process. Vibrations stimuli that increasing in the order of the frontal head to the temporal head in chain reaction were effective for wall localization [7]. In contrast, vibration stimuli provided in isolation to a single position in the frontal direction of the head via a single vibro-motor were effective for aperture localization [8].…”

Section: Introductionmentioning

confidence: 99%

We can pass through the wall gap: aperture passage perception via vibration stimuli generated from distance variation

Morita,

Kikuchi,

Saeki

et al. 2023

Sixteenth International Conference on Quality Control by Artificial Vision

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We have been developing a helmet-type spatial perception support system that provides the user with vibration stimuli in response to the distance variation to an obstacle. The purpose of this research is set to propose a method for generating vibration stimuli that appropriately represent two environmental elements, walls and apertures, and verify its effectiveness for the aperture passage perception. The five vibro-motors are positioned at directional angles of 0 degree in front, 30 and 60 degrees to left and right, and generate vibration stimuli of an intensity calculated by assigning appropriate damping weights. We set the distance-dependent damping weights separately for each directional angle in the calculation of the vibration intensity to be generated for each motor. Experimental results demonstrate that the subjects were able to pass through the aperture in approximately 91 % of trials. This suggests that the developed system and the proposed vibration stimuli generation method are effective in perceiving space from the vibration stimuli provided to the head.

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Section: Introductionmentioning

confidence: 99%

We can pass through the wall gap: aperture passage perception via vibration stimuli generated from distance variation

Morita,

Kikuchi,

Saeki

et al. 2023

Sixteenth International Conference on Quality Control by Artificial Vision

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“…By including a distance variation term in the vibration generation equation, vibrations are generated only when the user is moving, and not when the user stops because the distance to the obstacle is constant. Compared to systems that constantly generate vibration by converting distance directly into vibration, the VieW generates vibration only when the user moves, which is less discomfort to the user [3], an advantage over conventional ETAs.…”

Section: Introductionmentioning

confidence: 99%

We can walk down the corridor? Veering perception via vibration stimuli generated from distance variation

Saeki,

Kikuchi,

Okuda

et al. 2024

International Workshop on Advanced Imaging Technology (IWAIT) 2024

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We have been developing a vibro-visual system for the visually impaired (Vibro-eyesight by Walking; VieW), which makes the user perceive space by providing vibration stimuli based on the difference in distance from obstacles caused by walking or head rotation. The purpose of this research is to clarify the points to be considered in developing the VieW that assists the visually impaired users to perceive the surrounding space and walk without colliding with walls, assuming an indoor corridor environment, and to verify the modifications that should be made to the VieW. Through walking experiments in a corridor with walls on both sides, we confirmed the importance of the perception of veering, i.e., the shift in the movement direction, and the perception of the veering direction. The results suggest that a vibration presentation method that clearly differentiates between approaching and moving away from a wall is effective.

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Environment understanding during walking via modality conversion from visual to haptic information: localization experiment with vibro-stimuli simulated by optical flow

Cited by 2 publications

References 0 publications

We can pass through the wall gap: aperture passage perception via vibration stimuli generated from distance variation

We can pass through the wall gap: aperture passage perception via vibration stimuli generated from distance variation

We can walk down the corridor? Veering perception via vibration stimuli generated from distance variation

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