denkiwakame

Working Experiences

Senior Researcher at OMRON SINIC X, Japan, 2023-present
Research on mobile robot navigaion, 3D computer vision, and GPU-accelerated machine learning

Research Engineer at OMRON SINIC X, Japan, 2019-2023
Research on mobile robot navigation and 3D computer vision

Senior Software Engineer at Fixstars, Japan, 2017-2019
Development of CUDA/SIMD-accelerated computer vision algorithms for embedded systems

Researcher at NTT Labs, Japan, 2015-2017
Research on MRF optimization for low-level vision, large-scale graph processing

Part-time Web Application Engineer at Hatena, Japan, 2013-2015
Backend/Frontend web application development at Hatena Blog Team

Research Intern at IBM Tokyo Research Laboratory, Japan, 2013 Aug.-2013 Sep.
Research on low-resolution traffic image monitoring

Software Engineer Intern (BOLD) at Google, Japan, 2012 Aug.-2012 Sep.
Porting image APIs for Natiev Client project at Chrome Team.

Education

Ph.D. in informatics, at Kyoto University, Japan, 2020-2023

M.E. in informatics, at Kyoto University, Japan, 2013-2015

B.E. in Electrical and Electronic Engineering, at Kyoto University, Japan, 2009-2013

Publications

Sosuke Ichihashi, So Kuroki, Mai Nishimura, Kazumi Kasaura, Takefumi Hiraki, Kazutoshi Tanaka, Shigeo Yoshida,
Swarm Body: Embodied Swarm Robots
ACM Conference on Human Factors in Computing Systems (CHI), 2024
[paper] [arxiv]

Kohei Honda, Ryo Yonetani, Mai Nishimura, Tadashi Kozuno,
When to Replan? An Adaptive Replanning Strategy for Autonomous Navigation using Deep Reinforcement Learning
International Conference on Robotics and Automation (ICRA), 2024
[paper] [projectpage]

Hikaru Asano, Ryo Yonetani, Mai Nishimura, Tadashi Kozuno,
Counterfactual Fairness Filter fo Fair-Delay Multi-Robot Navigation
International Conference on Autonomous Agents and Multi-Agent Systems (AAMAS), 2023
[paper] [projectpage]

Mai Nishimura, Shohei Nobuhara, Ko Nishino,
View Birdification in the Crowd: Ground-Plane Localization from Perceived Movements
International Journal of Computer Vision (IJCV), 2023
[paper] [arxiv]

Kazumi Kasaura, Ryo Yonetani, Mai Nishimura,
Periodic Multi-Agent Path Planning
AAAI Conference on Artificial Intelligence (AAAI), 2023
[paper] [projectpage]

Mai Nishimura, Shohei Nobuhara, Ko Nishino,
ViewBirdiformer: Learning to recover ground-plane crowd trajectories and ego-motion from a single ego-centric view
IEEE Robotics and Automation Letters (RA-L), 2022
[paper]

Kazumi Kasaura, Mai Nishimura, Ryo Yonetani,
Prioritized Safe Interval Path Planning for Multi-Agent Pathfinding with Continuous Time on 2D Roadmaps
IEEE Robotics and Automation Letters (RA-L), 2022
[paper] [projectpage]

Keisuke Okumura, Ryo Yonetani, Mai Nishimura, Asako Kanezaki,
CTRMs: Learning to Construct Cooperative Timed Roadmaps for Multi-agent Path Planning in Continuous Spaces
International Conference on Autonomous Agents and Multi-Agent Systems (AAMAS), 2022
[paper] [projectpage]

Mutsuki Nakahara, Mai Nishimura, Yoshitaka Ushiku, Takayuki Nishio, Kazuki Maruta, Yu Nakayama, Daisuke Hisano,
Edge Computing-Assisted DNN Image Recognition System With Progressive Image Retransmission
IEEE Access, 2022
[paper]

Mai Nishimura, Shohei Nobuhara, Ko Nishino,
View Birdification in the Crowd: Ground-Plane Localization from Perceived Movements
The British Machine Vision Conference (BMVC), 2021
[paper]

Ryo Yonetani, Tatsunori Taniai, Mohammadamin Barekatain, Mai Nishimura, Asako Kanezaki,
Path Planning using Neural A* Search
International Conference on Machine Learning (ICML), 2021
[paper] [projectpage]

Mutsuki Nakahara, Daisuke Hisano, Mai Nishimura, Yoshitaka Ushiku, Kazuki Maruta, Yu Nakayama,
Retransmission Edge Computing System Conducting Adaptive Image Compression Based on Image Recognition Accuracy
VTC-Fall, 2021
[paper]

Hiroaki Minoura, Ryo Yonetani, Mai Nishimura, Yoshitaka Ushiku,
Crowd Density Forecasting by Modeling Patch-based Dynamics
IEEE Robotics and Automation Letters (RA-L), 2021
[paper]

Mai Nishimura, Ryo Yonetani,
L2B: Learning to Balance the Safety-Efficiency Trade-off in Interactive Crowd-aware Robot Navigation
International Conference on Intelligent Robots and Systems (IROS), 2020
[paper] [projectpage]

Yasuhiro Fujiwara, Yasutoshi Ida, Juny Arai, Mai Nishimura, Sotetsu Iwamura,
Fast Algorithm for the Lasso based L1-Graph Construction
Proceedings of the Very Large Data Bases (PVLDB), 2016
[paper]

Mai Nishimura, Shohei Nobuhara, Takashi Matsuyama, Shinya Shimizu, Kensaku Fujii,
A Linear Generalized Camera Calibration from Three Intersecting Reference Planes
International Conference on Computer Vision (ICCV), 2015
[paper] [code]

Preprints

So Kuroki, Mai Nishimura, Tadashi Kozuno,
Multi-Agent Behavior Retrieval: Retrieval-Augmented Policy Training for Cooperative Manipulation by Mobile Robots
arXiv, 2023
[paper]

Mai Nishimura, Shohei Nobuhara, Ko Nishino,
InCrowdFormer: On-Ground Pedestrian World Model From Egocentric Views
arXiv, 2023
[paper]

Yuta Yoshitake, Mai Nishimura, Shohei Nobuhara, Ko Nishino,
TransPoser: Transformer as an Optimizer for Joint Object Shape and Pose Estimation
arXiv, 2023
[paper]

Academic Service

(Reviewer)

ICCV 2023, IROS 2023, CVPR 2023, TPAMI, WACV 2022, ICPR 2022, 3DV 2020-2021, MVA 2021