Shingo Hattori

ORCID: 0000-0003-4573-799X
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About
Contact & Profiles
Research Areas
  • Tactile and Sensory Interactions
  • Color Science and Applications
  • Visual perception and processing mechanisms
  • Advanced Optical Imaging Technologies
  • Visual Attention and Saliency Detection
  • Virtual Reality Applications and Impacts
  • Industrial Vision Systems and Defect Detection
  • Digital Media and Visual Art
  • Surface Roughness and Optical Measurements
  • Color perception and design
  • Advanced Vision and Imaging

University of Tsukuba
2022-2025

Visual guidance (VG) plays an essential role in directing user attention virtual reality (VR) and augmented (AR) environments. However, traditional approaches rely on explicit visual annotations, which often compromise clarity increase cognitive load. To address this issue, we propose unobtrusive VG technique based color vibration, a phenomenon rapidly alternating colors at frequencies above 25 Hz are perceived as single intermediate color. Our work explores perceptual state that exists...

10.1109/tvcg.2025.3549173 article EN IEEE Transactions on Visualization and Computer Graphics 2025-01-01

We propose HaptoFloater, a low-latency mid-air visuo-haptic augmented reality (VHAR) system that utilizes imperceptible color vibrations. When adding tactile stimuli to the visual information of image, user should not perceive latency between and information. However, conventional presentation methods for images, based on cameradetected fingertip positioning, introduce due image processing communication. To mitigate this latency, we use vibration technique; humans cannot when display...

10.1109/tvcg.2024.3456175 article EN IEEE Transactions on Visualization and Computer Graphics 2024-01-01

We propose an efficient method for searching color vibration pairs that are imperceptible to the human eye based on MacAdam ellipse, experimentally determined color-difference range is indistinguishable eye. created by selecting eight colors within sRGB space specified and conducted experiments confirm threshold of amplitude at which flicker becomes The experimental results indicate a general guideline acceptable amplitudes pair selection.

10.1145/3641234.3671041 preprint EN arXiv (Cornell University) 2024-06-12

We propose an efficient method for searching color vibration pairs that are imperceptible to the human eye based on MacAdam ellipse, experimentally determined color-difference range is indistinguishable eye. created by selecting eight colors within sRGB space specified and conducted experiments confirm threshold of amplitude at which flicker becomes The experimental results indicate a general guideline acceptable amplitudes pair selection.

10.1145/3641234.3671041 article EN 2024-07-25

We propose HaptoFloater, a low-latency mid-air visuo-haptic augmented reality (VHAR) system that utilizes imperceptible color vibrations. When adding tactile stimuli to the visual information of image, user should not perceive latency between and information. However, conventional presentation methods for images, based on camera-detected fingertip positioning, introduce due image processing communication. To mitigate this latency, we use vibration technique; humans cannot when display...

10.48550/arxiv.2408.06552 preprint EN arXiv (Cornell University) 2024-08-12

Visual guidance (VG) is critical for directing user attention in virtual and augmented reality applications. However, conventional methods using explicit visual annotations can obstruct visibility increase cognitive load. To address this, we propose an unobtrusive VG technique based on color vibration, a phenomenon which rapidly alternating colors at frequencies above 25 Hz are perceived as single intermediate color. We hypothesize that perceptual state exists between complete fusion...

10.48550/arxiv.2412.17274 preprint EN arXiv (Cornell University) 2024-12-22
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