Ryuji Hirayama

According to our database, Ryuji Hirayama authored at least 22 papers between 2013 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

AcoustoBots: A swarm of robots for acoustophoretic multimodal interactions.

Narsimlu Kemsaram, James Hardwick, Jincheng Wang, Bonot Gautam, Ceylan Besevli, Giorgos Christopoulos, Sourabh Dogra, Lei Gao, Akin Delibasi, Diego Martínez Plasencia, Orestis Georgiou, Marianna Obrist, Ryuji Hirayama, Sriram Subramanian

Frontiers Robotics AI, 2025

"To BEM or not to BEM?": Does Modelling Sound Scattering Improve Ultrasonic Mid-Air Haptics?

Joshua Mukherjee, Zhouyang Shen, Giorgos Christopoulos, Sriram Subramanian, Ryuji Hirayama

Proceedings of the Extended Abstracts of the CHI Conference on Human Factors in Computing Systems, 2025

2024

Temporal acoustic point holography.

Giorgos Christopoulos, Lei Gao, Diego Martínez Plasencia, Marta Betcke, Ryuji Hirayama, Sriram Subramanian

Proceedings of the ACM SIGGRAPH 2024 Conference Papers, 2024

StableLev: Data-Driven Stability Enhancement for Multi-Particle Acoustic Levitation.

Lei Gao, Giorgos Christopoulos, Prateek Mittal, Ryuji Hirayama, Sriram Subramanian

Proceedings of the CHI Conference on Human Factors in Computing Systems, 2024

2023

OpenMPD: A Low-Level Presentation Engine for Multimodal Particle-Based Displays.

Roberto A. Montano Murillo, Ryuji Hirayama, Diego Martínez Plasencia

ACM Trans. Graph., April, 2023

DataLev: Mid-air Data Physicalisation Using Acoustic Levitation.

Lei Gao, Pourang Irani, Sriram Subramanian, Gowdham Prabhakar, Diego Martínez Plasencia, Ryuji Hirayama

Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems, 2023

2022

Magical multi-modal displays using acoustophoresis.

Ryuji Hirayama, Sriram Subramanian

XRDS, 2022

DATALEV: Acoustophoretic Data Physicalisation.

Lei Gao, James Hardwick, Diego Martínez Plasencia, Sriram Subramanian, Ryuji Hirayama

Proceedings of the Adjunct Publication of the 35th Annual ACM Symposium on User Interface Software and Technology, 2022

2020

GS-PAT: high-speed multi-point sound-fields for phased arrays of transducers.

Diego Martínez Plasencia, Ryuji Hirayama, Roberto A. Montano Murillo, Sriram Subramanian

ACM Trans. Graph., 2020

2017

Computational ghost imaging using deep learning.

Tomoyoshi Shimobaba, Yutaka Endo, Takashi Nishitsuji, Takayuki Takahashi, Yuki Nagahama, Satoki Hasegawa, Marie Sano, Ryuji Hirayama, Takashi Kakue, Atsushi Shiraki, Tomoyoshi Ito

CoRR, 2017

Fast, large-scale hologram calculation in wavelet domain.

Tomoyoshi Shimobaba, Kyoji Matsushima, Takayuki Takahashi, Yuki Nagahama, Satoki Hasegawa, Marie Sano, Ryuji Hirayama, Takashi Kakue, Tomoyoshi Ito

CoRR, 2017

Deep-learning-based data page classification for holographic memory.

Tomoyoshi Shimobaba, Naoki Kuwata, Mizuha Homma, Takayuki Takahashi, Yuki Nagahama, Marie Sano, Satoki Hasegawa, Ryuji Hirayama, Takashi Kakue, Atsushi Shiraki, Naoki Takada, Tomoyoshi Ito

CoRR, 2017

Inkjet printing-based volumetric display projecting multiple full-colour 2D patterns.

Ryuji Hirayama, Tomotaka Suzuki, Tomoyoshi Shimobaba, Atsushi Shiraki, Makoto Naruse, Hirotaka Nakayama, Takashi Kakue, Tomoyoshi Ito

CoRR, 2017

Controllable color particles in a 3D crystal projecting multiple dynamic full-color images.

Ryuji Hirayama, Hirotaka Nakayama, Atsushi Shiraki, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito

Proceedings of the Special Interest Group on Computer Graphics and Interactive Techniques Conference, 2017

2016

Autoencoder-based holographic image restoration.

Tomoyoshi Shimobaba, Yutaka Endo, Ryuji Hirayama, Yuki Nagahama, Takayuki Takahashi, Takashi Nishitsuji, Takashi Kakue, Atsushi Shiraki, Naoki Takada, Nobuyuki Masuda, Tomoyoshi Ito

CoRR, 2016

3-D crystal with a curved surface projecting multiple 2-D images.

Ryuji Hirayama, Atsushi Shiraki, Hirotaka Nakayama, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito

Proceedings of the SIGGRAPH ASIA 2016, Macao, December 5-8, 2016 - Posters, 2016

2015

Improvement of the image quality of random phase-free holography using an iterative method.

Tomoyoshi Shimobaba, Takashi Kakue, Yutaka Endo, Ryuji Hirayama, Daisuke Hiyama, Satoki Hasegawa, Yuki Nagahama, Marie Sano, Minoru Oikawa, Takashige Sugie, Tomoyoshi Ito

CoRR, 2015

Optical encryption for large-sized images using random phase-free method.

Tomoyoshi Shimobaba, Takashi Kakue, Yutaka Endo, Ryuji Hirayama, Daisuke Hiyama, Satoki Hasegawa, Yuki Nagahama, Marie Sano, Takashige Sugie, Tomoyoshi Ito

CoRR, 2015

3-D crystal exhibiting multiple 2-D images with directivity.

Ryuji Hirayama, Hirotaka Nakayama, Atsushi Shiraki, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito

Proceedings of the SIGGRAPH Asia 2015 Posters, Kobe, Japan, November 2-6, 2015, 2015

2014

Numerical investigation of lensless zoomable holographic multiple projections to tilted planes.

Tomoyoshi Shimobaba, Michal Makowski, Takashi Kakue, Naohisa Okada, Yutaka Endo, Ryuji Hirayama, Daisuke Hiyama, Satoki Hasegawa, Yuki Nagahama, Tomoyoshi Ito

CoRR, 2014

Development of volumetric display based on multi-bit color LED.

Ryuji Hirayama, Hirotaka Nakayama, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Ito, Atsushi Shiraki

Proceedings of the 2014 IEEE Asia Pacific Conference on Circuits and Systems, 2014

2013

Calculation reduction method for color computer-generated hologram using color space conversion.

Tomoyoshi Shimobaba, Takashi Kakue, Minoru Oikawa, Naoki Takada, Naohisa Okada, Yutaka Endo, Ryuji Hirayama, Tomoyoshi Ito

CoRR, 2013