activity
20192026
most citedFederated AirNet: Hybrid Digital-Analog Neural Network Transmission for Federated Learning

4 citations · 6 across the 9 of their papers we have counts for

collaborators

10 papers

cs.CV2026

Unsupervised 3D Human Pose Estimation via Conditional Multi-view Ancestral Sampling

Ryohei Goto, Takuya Fujihashi, Shunsuke Saruwatari +1

We propose a method of estimating a 3D human pose from a single view without 3D supervision. The key to our method is to leverage the 2D diffusion priors of motion diffusion models…

cs.CV2025

RAPTR: Radar-based 3D Pose Estimation using Transformer

Sorachi Kato, Ryoma Yataka, Pu Perry Wang +3

Radar-based indoor 3D human pose estimation typically relied on fine-grained 3D keypoint labels, which are costly to obtain especially in complex indoor settings involving clutter,…

cs.CV2025

Range Image-Based Implicit Neural Compression for LiDAR Point Clouds

Akihiro Kuwabara, Sorachi Kato, Toshiaki Koike-Akino +1

This paper presents a novel scheme to efficiently compress Light Detection and Ranging~(LiDAR) point clouds, enabling high-precision 3D scene archives, and such archives pave the w…

eess.IV2024

Quantum Implicit Neural Compression

Takuya Fujihashi, Toshiaki Koike-Akino

Signal compression based on implicit neural representation (INR) is an emerging technique to represent multimedia signals with a small number of bits. While INR-based signal compre…

eess.SP2024

Multi-Band Wi-Fi Neural Dynamic Fusion

Sorachi Kato, Pu Perry Wang, Toshiaki Koike-Akino +3

Wi-Fi channel measurements across different bands, e.g., sub-7-GHz and 60-GHz bands, are asynchronous due to the uncoordinated nature of distinct standards protocols, e.g., 802.11a…

cs.MM2022★ 4 cited

Federated AirNet: Hybrid Digital-Analog Neural Network Transmission for Federated Learning

Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe

A key issue in federated learning over wireless channels is how to exchange a large number of the model parameters via time-varying channels. Two types of solutions based on digita…

cs.MM2021★ 1 cited

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe

The increasing demand for video streaming services is the key driver of modern wireless and mobile communications. For robust and high-quality delivery of video content over wirele…

cs.CV2020

CSI2Image: Image Reconstruction from Channel State Information Using Generative Adversarial Networks

Sorachi Kato, Takeru Fukushima, Tomoki Murakami +5

This study aims to find the upper limit of the wireless sensing capability of acquiring physical space information. This is a challenging objective, because at present, wireless se…

eess.SP2020★ 1 cited

Wireless 3D Point Cloud Delivery Using Deep Graph Neural Networks

Takuya Fujihashi, Toshiaki Koike-Akino, Siheng Chen +1

In typical point cloud delivery, a sender uses octree-based digital video compression to send three-dimensional (3D) points and color attributes over band-limited links. However, t…

cs.MM2019

HoloCast: Graph Signal Processing for Graceful Point Cloud Delivery

Takuya Fujihashi, Toshiaki Koike-Akino, Takashi Watanabe +1

In conventional point cloud delivery, a sender uses octree-based digital video compression to stream three-dimensional (3D) points and the corresponding color attributes over band-…