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Atsuo Takanishi

15 accepted papers

2025

Pitching Motion in a Humanoid Robot Using Human-Inspired Shoulder Elastic Energy and Motor Torque Optimization

ICRA 2025

Humanoid robots that mimic human movement have garnered significant attention in recent years. This study focuses on mimicking the efficient pitching motion of humans by incorporating two main approaches into a humanoid robot: (1) the use of elastic elements to assist joint torque, and (2) the optim

Cited by 0SourceScholar
2024

Development of a Bilateral Control Teleoperation System for Bipedal Humanoid Robot Utilizing Foot Sole Haptics Feedback *

IROS 2024poster

Teleoperating bipedal humanoid robots presents unique challenges, including decreased stability and reduced operator presence. This paper addresses these challenges by proposing a method that leverages the operator’s inherent sense of stability by feedback from a sole haptics display to operate a bi…

Cited by 0SourceScholar
2019

Development of Performance System With Musical Dynamics Expression on Humanoid Saxophonist Robot

RA-L 2019

Talented musicians can deliver a powerful emotional experience to the audience by skillfully modifying several musical parameters, such as dynamics, articulation, and tempo. Musical robots are expected to control those musical parameters in the same way to give the audience an experience comparable

Cited by 16SourceScholar
2019

Disaster Response Robot’s Autonomous Manipulation of Valves in Disaster Sites Based on Visual Analyses of RGBD Images

IROS 2019poster

For building a disaster response robot, WAREC-l's fully-automated system for manipulating a valve, this paper proposes a method for (1) detecting a valve which is far away from the robot, (2) estimating the position and orientation for grasping the valve by the robot at a closer position. Our method…

Cited by 5SourceScholar
2019

Identification of Rat Ultrasonic Vocalizations from Mix Sounds of a Robotic Rat in a Noisy Environment

IROS 2019poster

Social interaction between a robot and rats is important since the robot can generate reproducible social behaviors across trials. However, lacking internal state feedback from the rat makes current robot-rat interaction a very preliminary level comparing with rat-rat interaction. Previous biologica…

Cited by 1SourceScholar
2018

End-effector with a Hook and Two Fingers for the Locomotion and Simple Work of a Four-limbed Robot

IROS 2018poster

In this paper, we propose an end-effector for realizing various locomotion modes and simple work of a legged robot. The locomotion modes include climbing a vertical ladder, crawling, and walking. The simple work includes grasping and switching motions required at a disaster site. The developed end-e…

Cited by 3SourceScholar
2018

Group emotion recognition strategies for entertainment robots

IROS 2018poster

In this paper, a system to determine the emotion of a group of people via facial expression analysis is proposed for the Waseda Entertainment Robots. General models and standard methods for emotion definition and recognition are briefly described, as well as strategies for computing the group global…

Cited by 36SourceScholar
2017

A four-limbed disaster-response robot having high mobility capabilities in extreme environments

IROS 2017poster

This paper describes a novel four-limbed robot having high mobility capability in extreme environments. At disaster sites, there are various types of environments where a robot must move such as rough terrain with possibility of collapse, narrow places, stairs, vertical ladders and so forth. In this…

Cited by 18SourceScholar
2017

Motion evaluation of a modified multi-link robotic rat

IROS 2017poster

The interaction test between a robotic rat and living rat is considered as a possible way to quantitatively characterize the rat sociality. In such robot-rat interactions, the robot should be designed to fully replicate a real rat in terms of morphological and behavioral characteristics. To address…

Cited by 6SourceScholar
2017

Step Sequence and Direction Detection of Four Square Step Test

RA-L 2017

Poor balance control and falls are big issues for older adults that due to aging decline have a lower postural balance and directional control in balance performance than younger age groups. The four square step test (FSST) was developed to evaluate rapid stepping that is often required when changin

Cited by 4SourceScholar
2016

A Novel Approach to Increase the Locomotion Performance of Mobile Robots in Fields With Tall Grasses

RA-L 2016

One of the main problems faced by land-based mobile robots is their locomotion performance on rough outdoor terrain. We focused on the navigation of grassy areas such as riversides and forests. These have many types of obstacles, which make robot locomotion difficult. Several studies have been condu

Cited by 5SourceScholar
2016

Cat-inspired mechanical design of self-adaptive toes for a legged robot

IROS 2016poster

Cats have protractible claws to fold their tips to keep them sharp. They protract claws while hunting and pawing on slippery surfaces. Protracted claws by tendons and muscles of toes can help cats anchoring themselves steady while their locomotion trends to slip and releasing the hold while they ret…

Cited by 10SourceScholar
2016

Design of four-arm four-crawler disaster response robot OCTOPUS

ICRA 2016

We developed a four-arm four-crawler advanced disaster response robot called OCTOPUS. Disaster response robots are expected to be capable of both mobility, e.g., entering narrow spaces over very rough unstable ground, and workability, e.g., conducting complex debris-demolition work. However, convent

Cited by 23SourceScholar
2016

Development of a Humorous Humanoid Robot Capable of Quick-and-Wide Arm Motion

RA-L 2016

This letter describes the development of a humanoid arm with quick-and-wide motion capability for making humans laugh. Laughter is attracting research attention because it enhances health by treating or preventing mental diseases. However, laughter has not been used effectively in healthcare because

Cited by 9SourceScholar
2015

Novel method of estimating surface condition for tiny mobile robot to improve locomotion performance

IROS 2015poster

Environment recognition is an effective way for a mobile robot to move across rough terrain. In particular, this makes it possible to prevent a tiny mobile robot from getting stuck or turning over. Several studies have been conducted on environment recognition using a laser range finder or camera. H…

Cited by 10SourceScholar