Research Theme

Smart City Technologies

We are pursuing technologies for modeling and understanding the mobility of people and vehicles in the real world

Smart City Technologies

Smart Mobility

Pedestrian tracking has become increasingly important in recent years to realize human-centric applications such as crowd navigation, facility design, evacuation planning, and path analysis. We propose a novel system that simultaneously tracks pedestrians and crowds using a laser range scanner (LiDAR). When the crowd density is not relatively high, the proposed system accurately captures the movement trajectory of each individual to achieve granular path analysis, while when the crowd density is extremely high, the system automatically switches to an algorithm that accurately estimates the number of pedestrians in the area. In addition, by capturing and sharing indoor human behavior and social information with LiDAR and multiple smartphones, "personal + crowd + social" navigation can be realized, and demonstration tests are ongoing in a commercial building in Osaka.

Research Topics
Map-Aware Super-Resolution GPS Trajectory Reconstruction via Machine Learning

Map-Aware Super-Resolution GPS Trajectory Reconstruction via Machine Learning

Mobility Data Reconstruction, Spatial-Temporal Data Processing, Transformer Models, Graph Neural Networks (GNNs), Map-Matching Algorithms

Understanding Visitor Mobility Patterns in Public Spaces: A Case Study of Wakayama Castle Park

Understanding Visitor Mobility Patterns in Public Spaces: A Case Study of Wakayama Castle Park

Visitor Mobility Patterns, Wakayama Castle Park, Reconstruction of Mobility Trajectories, Statistical Analysis,Counterfactual Analysis,Accessibility Constraints,Environmental Conditions,Decision-Making Processes,Design of Mobility Services

Interpretable Environmental Condition Recognition for Autonomous Driving Using Surrogate Decision Trees

Interpretable Environmental Condition Recognition for Autonomous Driving Using Surrogate Decision Trees

Autonomous Driving, Environmental Condition Recognition, CNN, Surrogate Model, Decision Tree

Traffic Safety Assistance System for Electric Scooters

Traffic Safety Assistance System for Electric Scooters

Electric Scooter (E-Scooter), Micromobility Traffic Safety, Edge Computing, Real-Time Hazard Prediction, Route Recommendation, Safety Assistance Systems

LLM-Driven Adaptive Autonomous Robot Navigation via Multimodal Fusion for Dynamic Environments

LLM-Driven Adaptive Autonomous Robot Navigation via Multimodal Fusion for Dynamic Environments

Autonomous Navigation, Multimodal Fusion, FPGA Acceleration, LLM (Large Language Model), Socially Compliant Path Planning, Dynamic Environment Adaptation

Quantum Approximation Method and Neural-Integrated Mathematical Optimization Algorithm for Elderly Care Taxi Dispatch Problem

Quantum Approximation Method and Neural-Integrated Mathematical Optimization Algorithm for Elderly Care Taxi Dispatch Problem

Quantum Computing, Combinatorial Optimization, QUBO, QAOA, Multi-Person Time-Window Constrained Traveling Salesman Problem, TW-TSP, Quantum Approximate Algorithm, Unconstrained Quadratic Optimization Problem, Graph Neural Network, GCN, Vehicle Routing Problem

Lightweight Merging Point Prediction on Highway On-Ramps Using Regression Techniques

Lightweight Merging Point Prediction on Highway On-Ramps Using Regression Techniques

Driver Assistance Systems, Multi-autonomous Vehicle Studies, Models, Techniques and Simulations, Automated Vehicle Operation, Motion Planning, Navigation

Optimizing Nursing Care Taxi Dispatch Leveraging Integer Linear Programming Solvers and Machine Learning

Optimizing Nursing Care Taxi Dispatch Leveraging Integer Linear Programming Solvers and Machine Learning

Vehicle Routing Problem, Optimization, Integer Linear Programming, Machine Learning, Supervised Learning, Smart City

Synthesis of Pedestrian Movement Patterns: Combining Sparse Location Data with Multi-Spot Density Measurements

Synthesis of Pedestrian Movement Patterns: Combining Sparse Location Data with Multi-Spot Density Measurements

GPS,OD estimation

A Vehicle Tracking Method Based on Distance Estimation Using Dashboard Camera

A Vehicle Tracking Method Based on Distance Estimation Using Dashboard Camera

Onboard Camera Video, Mobility Data, Vehicle Detection, Deep Neural Network(DNN)

Light-weight Object Detection of 3-D Point Cloud Data by Micro-size LiDAR

Light-weight Object Detection of 3-D Point Cloud Data by Micro-size LiDAR

3D point cloud, object detection, LiDAR, wearable device

Privacy-preserving Pedestrian Tracking using Distributed 3D LiDARs

Privacy-preserving Pedestrian Tracking using Distributed 3D LiDARs

Privacy-preserving, LiDAR, Re-ID, Multi-LiDAR Tracking

Multi-Lane Detection and Tracking Using Vision for Traffic Situation Awareness

Multi-Lane Detection and Tracking Using Vision for Traffic Situation Awareness

In-vehicle Camera, Driver Assist System

Robust Pedestrian Tracking Against Occlusions in Public Spaces Using 3D Point Clouds from Depth/LiDAR Sensors

Robust Pedestrian Tracking Against Occlusions in Public Spaces Using 3D Point Clouds from Depth/LiDAR Sensors

LIDAR, Dpeth-camera, Pedestrian Tracking, Kalman-filter

Smart City Technologies

Disaster Prevention・Mitigation/Smart Community

We are conducting research on disaster prevention and mitigation technologies using information communication and sensing technologies. Every year in Japan, torrential rains and typhoons cause flooding, which results in a lot of damage. When damage occurs, what is important is how quickly and correctly we can assess the damage. The more quickly and accurately we can assess the situation, the less time it will take to rescue people, and the more accurately we can allocate limited resources such as people and equipment. Currently, however, it takes a long time to assess the damage in detail, and when people are dispatched, secondary damage and human costs are incurred. In response to this, we are conducting research on the use of drones to efficiently assess the situation during a disaster.

Research Topics
Smart City Technologies

Smart Home

We are conducting research on achieving energy conservation and improving quality of life in households without imposing any burden on residents by installing various sensors to monitor their activities. Our work focuses on developing methods to interpret resident behavior from ambiguous sensor data, such as motion sensors, and establishing a framework for determining acceptable behavior patterns based on the analysis of collected sensor data.

スマートホームに関する研究の概要

Research Topics
Research Themes

研究テーマ一覧

Smart City Technologies
Theme 1
Smart City Technologies
We are pursuing technologies for modeling and understanding the mobility of people and vehicles in the real world
Current Page
Human, Activity and Environment Sensing
Theme 2
Human, Activity and Environment Sensing
We are researching methods to estimate and utilize various states of the human body, including deep body temperature, by analyzing data obtained from smartphones, LiDAR, and wearable sensors.
See More
Next-gen Wireless Communication and Mobile Computing
Theme 3
Next-gen Wireless Communication and Mobile Computing
We are pursuing location estimation using the electromagnetic properties of wireless communication, and methods for building distributed machine learning systems.
See More