Explanipedia

Supplementary material to "Numerical Experiments of Cloud Seeding for Mitigating Localization of Heavy Rainfall: A Case Study of Mesoscale Convective System in Japan" Open

Yusuke Hiraga, Jacqueline Muthoni Mbugua, Shunji Kotsuki, Yoshiharu Suzuki, Shu‐Hua Chen , et al. · 2025

Numerical Experiments of Cloud Seeding for Mitigating Localization of Heavy Rainfall: A Case Study of Mesoscale Convective System in Japan Open

Yusuke Hiraga, Jacqueline Muthoni Mbugua, Shunji Kotsuki, Yoshiharu Suzuki, Shu‐Hua Chen , et al. · 2025

This study investigated the potential of cloud seeding to mitigate extreme rainfall localization (i.e., overseeding) associated with mesoscale convective systems in Japan. Using a numerical weather prediction model, we conducted cloud seed…

Time-resolved inverse radiosity: simultaneous estimation of shape and reflectance Open

Yuta Ikusaka, Yohanssen Pratama, Takahiro Kushida, Yuki Fujimura, Kenichiro Tanaka , et al. · 2025

This paper introduces time-resolved inverse radiosity, what we believe to be a novel approach for simultaneously estimating shape and reflectance in the presence of inter-reflections. Our method extends conventional inverse radiosity by in…

Temporal illumination variation compensation using perpendicular whisk-broom hyperspectral scans Open

Suzan Joseph Kessy, Takuya Funatomi, Takahiro Kushida, Kazuya Kitano, Yuki Fujimura , et al. · 2025

International audience

Design Rule for Laser Speckle Authentication in Free-Space Geometry: Enhancing Displacement Robustness Open

Kazuya Kitano, Julia Binder, Rui Ishiyama, Tsukasa Matsuo, Takuya Funatomi , et al. · 2025

Material Segmentation Using 1-D Convolutional Neural Network With Transient Histogram Open

Yohanssen Pratama, Kazuya Kitano, Takahiro Kushida, Yuki Fujimura, Takuya Funatomi , et al. · 2025

This study introduces a method for material classification using transient histograms obtained via a single-photon avalanche diode (SPAD) sensor. Temporal resolution in optical sensing plays a crucial role in material classification and su…

Refractive epitrochoids sampling for light field measurement using wedge prisms Open

Akihiro Higaki, Kazuya Kitano, Yuki Fujimura, Takahiro Kushida, Takuya Funatomi , et al. · 2024

Conventional light field measurement using a micro-lens array suffers from grid-like artifacts in the refocused image because the sub-aperture images are sampled at linear and equal intervals like a grid pattern. In this study, we propose …

Direct Alignment of Narrow Field-of-View Hyperspectral Data and Full-View Rgb Image Open

Guillaume Caron, Suzan Joseph Kessy, Yasuhiro Mukaigawa, Takuya Funatomi · 2024

Continual few-shot patch-based learning for anime-style colorization Open

Akinobu Maejima, Seitaro Shinagawa, Hiroyuki Kubo, Takuya Funatomi, Tatsuo Yotsukura , et al. · 2024

The automatic colorization of anime line drawings is a challenging problem in production pipelines. Recent advances in deep neural networks have addressed this problem; however, collectingmany images of colorization targets in novel anime …

List of Authors Open

Yuta Asano, Takuya Funatomi, Nathan Hagen, Felix Heide, Adrián Jarabo , et al. · 2024

Detection of Multiple Fluorescent Dyes Using Liquid Crystal Variable Retarder and Sparse Modeling Open

K. Fujiwara, Takuya Funatomi, Kazuya Kitano, Yuki Fujimura, Yasuhiro Mukaigawa , et al. · 2024

In spatial transcriptomics, which allows the analysis of gene expression while preserving its location in tissues, RNA molecules are hybridized with a fluorescent-labeled DNA probe for detection. In this study, we aim to improve the effici…

Deep Depth from Focal Stack with Defocus Model for Camera-Setting Invariance Open

Yuki Fujimura, Masaaki Iiyama, Takuya Funatomi, Yasuhiro Mukaigawa · 2023

We propose deep depth from focal stack (DDFS), which takes a focal stack as input of a neural network for estimating scene depth. Defocus blur is a useful cue for depth estimation. However, the size of the blur depends on not only scene de…

Machine learning-based estimation of spatial gene expression pattern during ESC-derived retinal organoid development Open

Yuki Fujimura, Itsuki Sakai, Itsuki Shioka, Nozomu Takata, Atsushi Hashimoto , et al. · 2023

Organoids, which can reproduce the complex tissue structures found in embryos, are revolutionizing basic research and regenerative medicine. In order to use organoids for research and medicine, it is necessary to assess the composition and…

Hyperspectral Imaging of In-Site Stained Glasses: Illumination Variation Compensation Using Two Perpendicular Scans Open

Suzan Joseph Kessy, Takuya Funatomi, Kazuya Kitano, Yuki Fujimura, Guillaume Caron , et al. · 2023

This paper presents a method for compensating temporal illumination variations in whisk-broom hyperspectral imaging. Whisk-broom imaging scans the scene sequentially, capturing a complete spectrum at each spatial coordinate pixel-by-pixel …

Machine learning-based estimation of spatial gene expression pattern during ESC-derived retinal organoid development Open

Yuki Fujimura, Itsuki Sakai, Itsuki Shioka, Nozomu Takata, Atsushi Hashimoto , et al. · 2023

Summary Organoids, which can reproduce the complex tissue structures found in embryos, are revolutionizing basic research and regenerative medicine. In order to use organoids for research and medicine, it is necessary to assess the composi…

NLOS-NeuS: Non-line-of-sight Neural Implicit Surface Open

Yuki Fujimura, Takahiro Kushida, Takuya Funatomi, Yasuhiro Mukaigawa · 2023

Non-line-of-sight (NLOS) imaging is conducted to infer invisible scenes from indirect light on visible objects. The neural transient field (NeTF) was proposed for representing scenes as neural radiance fields in NLOS scenes. We propose NLO…

Direct Alignment Of Narrow Field-Of-View Hyperspectral Data And Full-View Rgb Image Open

Guillaume Caron, Suzan Joseph Kessy, Yasuhiro Mukaigawa, Takuya Funatomi · 2022

International audience

Descattering for transmissive inspection in production line using slanted linear image sensors Open

Takahiro Kushida, Komei Tahara, Hayato Chiba, Yukihiro Kagawa, Kenichiro Tanaka , et al. · 2022

We propose a descattering method that can be easily applied to food production lines. The system consists of several sets of linear image sensors and linear light sources slanted at different angles. The images captured by these sensors ar…

Eliminating Temporal Illumination Variations in Whisk-broom Hyperspectral Imaging Open

Takuya Funatomi, T. Ogawa, Kenichiro Tanaka, Hiroyuki Kubo, Guillaume Caron , et al. · 2022

Deep Depth from Focal Stack with Defocus Model for Camera-Setting Invariance Open

Yuki Fujimura, Masaaki Iiyama, Takuya Funatomi, Yasuhiro Mukaigawa · 2022

We propose a learning-based depth from focus/defocus (DFF), which takes a focal stack as input for estimating scene depth. Defocus blur is a useful cue for depth estimation. However, the size of the blur depends on not only scene depth but…

Time-of-flight imaging in fog using multiple time-gated exposures Open

Daiki Kijima, Takahiro Kushida, Hiromu Kitajima, Kenichiro Tanaka, Hiroyuki Kubo , et al. · 2021

We propose a time-of-flight measurement algorithm for depth and intensity that is robust to fog. The key idea of the algorithm is to compensate for the scattering effects of fog by using multiple time-gating and assigning one time-gated ex…

Super-resolution for a dispersive spectrometer using a tilted area sensor and spectrally varying blur kernel interpolation Open

Kazuya Kitano, Takuya Funatomi, Ryohei Yasukuni, Kenichiro Tanaka, Hiroyuki Kubo , et al. · 2021

The grating, lens, and linear sensor determine a spectrometer’s wavelength resolution and measurement range. While conventional methods have tried to improve the optical design to obtain a better resolution, they have a limitation caused b…

Evaluating Registrations of Serial Sections With Distortions of the Ground Truths Open

Oleg Lobachev, Takuya Funatomi, Alexander Pfaffenroth, Reinhold Förster, Lars Knudsen , et al. · 2021

Registration of histological serial sections is a challenging task. Serial sections exhibit distortions and damage from sectioning. Missing information on how the tissue looked before cutting makes a realistic validation of 2D registration…

Touch Sensing for a Projected Screen Using Slope Disparity Gating Open

Mayuka Tsuji, Hiroyuki Kubo, Suren Jayasuriya, Takuya Funatomi, Yasuhiro Mukaigawa · 2021

This paper introduces a novel touch sensing system for a projected screen with a single camera. To achieve touch sensing with camera image, there are two challenges to overcome. One is to establish robustness against image processing being…

Registration of serial sections: An evaluation method based on distortions of the ground truths Open

Oleg Lobachev, Takuya Funatomi, Alexander Pfaffenroth, Reinhold Förster, Lars Knudsen , et al. · 2020

Registration of histological serial sections is a challenging task. Serial sections exhibit distortions and damage from sectioning. Missing information on how the tissue looked before cutting makes a realistic validation of 2D registration…

Blind 3D-Printing Watermarking Using Moment Alignment and Surface Norm Distribution Open

Arnaud Delmotte, Kenichiro Tanaka, Hiroyuki Kubo, Takuya Funatomi, Yasuhiro Mukaigawa · 2020

The recent development of 3D printing technology has brought concerns about its potential misuse, such as in copyright infringement and crimes.Although there have been many studies on blind 3D mesh watermarking for the copyright protection…

Phase disambiguation using spatio-temporally modulated illumination in depth sensing Open

Takahiro Kushida, Kenichiro Tanaka, Takahito Aoto, Takuya Funatomi, Yasuhiro Mukaigawa · 2020

Phase ambiguity is a major problem in the depth measurement in either time-of-flight or phase shifting. Resolving the ambiguity using a low frequency pattern sacrifices the depth resolution, and using multiple frequencies requires a number…

Three‐dimensional morphogenesis of the omental bursa from four recesses in staged human embryos Open

Tatsuro Nakamura, Shigehito Yamada, Takuya Funatomi, Tetsuya Takakuwa, Hisashi Shinohara , et al. · 2020

The omental bursa (OB) is a complex upper abdominal structure in adults. Its morphological complexity stems from embryonic development. Approximately 200 years ago, the first theory regarding OB development was reported, describing that th…

Blind Watermarking for 3-D Printed Objects by Locally Modifying Layer Thickness Open

Arnaud Delmotte, Kenichiro Tanaka, Hiroyuki Kubo, Takuya Funatomi, Yasuhiro Mukaigawa · 2019

We propose a new blind watermarking algorithm for three-dimensional (3D) printed objects that has applications in metadata embedding, robotic grasping, counterfeit prevention, and crime investigation. Our method can be used on fused deposi…

Time-Resolved Far Infrared Light Transport Decomposition for Thermal Photometric Stereo Open

Kenichiro Tanaka, Nobuhiro Ikeya, Tsuyoshi Takatani, Hiroyuki Kubo, Takuya Funatomi , et al. · 2019

We present a novel time-resolved light transport decomposition method using thermal imaging. Because the speed of heat propagation is much slower than the speed of light propagation, the transient transport of far infrared light can be obs…

Takuya Funatomi YOU? Author Swipe