Daisuke Iwai
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View article: Luminosity thresholds in projection mapping under environmental lighting
Luminosity thresholds in projection mapping under environmental lighting Open
Projection mapping alters the visual appearance of objects by projecting images onto their surfaces. Traditionally, its application has been limited to dark environments because the contrast of the projected image diminishes in environment…
View article: Efficient Proxy Raytracer for Optical Systems using Implicit Neural Representations
Efficient Proxy Raytracer for Optical Systems using Implicit Neural Representations Open
Ray tracing is a widely used technique for modeling optical systems, involving sequential surface-by-surface computations, which can be computationally intensive. We propose Ray2Ray, a novel method that leverages implicit neural representa…
View article: Artificial Blur Effect for Optical See-Through Near-Eye Displays
Artificial Blur Effect for Optical See-Through Near-Eye Displays Open
Saliency modulation has significant potential for various applications. In our pursuit of implementing saliency modulation for optical see-through near-eye displays, we introduce a blur effect to reduce the sharpness of specific regions wh…
View article: A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring
A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring Open
This paper proposes a projection system that optically removes the cast shadow in projection mapping. Specifically, we realize the large-aperture (LA) projection using a large-format Fresnel lens to suppress cast shadows by condensing the …
View article: Casper DPM: Cascaded Perceptual Dynamic Projection Mapping onto Hands
Casper DPM: Cascaded Perceptual Dynamic Projection Mapping onto Hands Open
We present a technique for dynamically projecting 3D content onto human hands with short perceived motion-to-photon latency. Computing the pose and shape of human hands accurately and quickly is a challenging task due to their articulated …
View article: Projection mapping technologies: A review of current trends and future directions
Projection mapping technologies: A review of current trends and future directions Open
This study summarizes current trends and future directions in projection mapping technologies. Projection mapping seamlessly merges the virtual and real worlds through projected imagery onto physical surfaces, creating an augmented reality…
View article: Projection Mapping under Environmental Lighting by Replacing Room Lights with Heterogeneous Projectors
Projection Mapping under Environmental Lighting by Replacing Room Lights with Heterogeneous Projectors Open
Projection mapping (PM) is a technique that enhances the appearance of real-world surfaces using projected images, enabling multiple people to view augmentations simultaneously, thereby facilitating communication and collaboration. However…
View article: Efficient Distortion-Free Neural Projector Deblurring in Dynamic Projection Mapping
Efficient Distortion-Free Neural Projector Deblurring in Dynamic Projection Mapping Open
Dynamic Projection Mapping (DPM) necessitates geometric compensation of the projection image based on the position and orientation of moving objects. Additionally, the projector's shallow depth of field results in pronounced defocus blur e…
View article: Responsive-ExtendedHand: Adaptive Visuo-Haptic Feedback Recognizing Object Property With RGB-D Camera for Projected Extended Hand
Responsive-ExtendedHand: Adaptive Visuo-Haptic Feedback Recognizing Object Property With RGB-D Camera for Projected Extended Hand Open
Sato Y., Iwai D., Sato K.. Responsive-ExtendedHand: Adaptive Visuo-Haptic Feedback Recognizing Object Property With RGB-D Camera for Projected Extended Hand. IEEE Access 12, 38247 (2024); https://doi.org/10.1109/ACCESS.2024.3375917.
View article: Correction to “Sound Texture Feedback for a Projected Extended Hand Interface”
Correction to “Sound Texture Feedback for a Projected Extended Hand Interface” Open
In the above article [1], we discovered that the y-axis labels of the box plot in Fig. 7(b) are incorrect. This error does not affect the conclusions of the published paper. The details of the error and correction are as follows:
View article: Sound Texture Feedback for a Projected Extended Hand Interface
Sound Texture Feedback for a Projected Extended Hand Interface Open
The ExtendedHand interface projects a computer graphics (CG) hand that synchronizes with a user's physical hand movements onto a real environment, visually extending the user's reach. This paper focuses on enhancing the user's tactile perc…
View article: Topology optimization with text-guided stylization
Topology optimization with text-guided stylization Open
We propose an approach for the generation of topology-optimized structures with text-guided appearance stylization. This methodology aims to enrich the concurrent design of a structure’s physical functionality and aesthetic appearance. Use…
View article: Topology Optimization with Text-Guided Stylization
Topology Optimization with Text-Guided Stylization Open
We propose an approach for the generation of topology-optimized structures with text-guided appearance stylization. This methodology aims to enrich the concurrent design of a structure's physical functionality and aesthetic appearance. Use…
View article: Focal surface projection: Extending projector depth of field using a phase‐only spatial light modulator
Focal surface projection: Extending projector depth of field using a phase‐only spatial light modulator Open
We present a focal surface projection to solve the narrow depth‐of‐field problem in projection mapping applications. We apply a phase‐only spatial light modulator to realize nonuniform focusing distances, whereby the projected contents app…
View article: Focal Surface Projection: Extending Projector Depth-of-Field Using a Phase-Only Spatial Light Modulator
Focal Surface Projection: Extending Projector Depth-of-Field Using a Phase-Only Spatial Light Modulator Open
We present a focal surface projection to solve the narrow depth-of-field problem in projection mapping applications. We apply a phase-only spatial light modulator to realize nonuniform focusing distances, whereby the projected contents app…
View article: Estimation of fused-filament-fabrication structural vibro-acoustic performance by modal impact sound
Estimation of fused-filament-fabrication structural vibro-acoustic performance by modal impact sound Open
Accurately simulating and designing the vibro-acoustic performance of 3D printed structures is a challenging task due to the lack of material elastic properties, particularly when designing without specialized measurement instruments. To t…
View article: Neural Projection Mapping Using Reflectance Fields
Neural Projection Mapping Using Reflectance Fields Open
We introduce a high resolution spatially adaptive light source, or a projector, into a neural reflectance field that allows to both calibrate the projector and photo realistic light editing. The projected texture is fully differentiable wi…
View article: Shadowless Projection Mapping using Retrotransmissive Optics
Shadowless Projection Mapping using Retrotransmissive Optics Open
This paper presents a shadowless projection mapping system for interactive applications in which a target surface is frequently occluded from a projector with a user's body. We propose a delay-free optical solution for this critical proble…
View article: A Monocular Projector-Camera System Using Modular Architecture
A Monocular Projector-Camera System Using Modular Architecture Open
This paper presents a monocular projector-camera (procam) system using modular architecture based on relay optics. Conventional coaxial procam systems cannot support (1) online changes to lens settings (zoom and focus) and (2) wide-angle p…
View article: NSTO: Neural Synthesizing Topology Optimization for Modulated Structure Generation
NSTO: Neural Synthesizing Topology Optimization for Modulated Structure Generation Open
Nature evolves structures like honeycombs at optimized performance with limited material. These efficient structures can be artificially created with the collaboration of structural topology optimization and additive manufacturing. However…