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In this paper the method used to implement the natural human gait for a humanoid robot is presented. This work is part of the humanoid robot project called Archie. The project Archie started on 2004 in the Institute of Handling Robotics and Technology at Vienna University of Technology. The aim of this project is to build a robot that can imitate human's basic activities such as walking. In this work...
This paper presents a platform to implement and evaluate a learning by imitation framework which enables humanoid robots to learn hand gestures from human beings. A marker based system is used to capture human motion data. From this data we extract the shoulder and elbow joint angles, which uniquely characterize a particular hand gesture. The proposed imitation learning framework aims to generalize...
Dynamically stable motion and safety of humanoid robots is must achieved because they are expacted to cooperate and interact with human beings. The synthesis of mechanism of the waist is described and a new waist configuration with parallel driving motor is developed. The center of gravity position kinematics model is built to obtain its change situation. Because the dynamatic behavior of manipulator...
The first generation of cyborgs is alive, well, walking among us, and even running. Pacemakers, renal dialysis machines and clumsy mechanical hands may not match the movie-image of cyborg enhancements, but they have been the leading wave. The legs of sprinter Oscar Pistorius, and implants of both the cochlear and RFID varieties, make more substantial changes to individuals. They also pose greater...
In this paper, visual tracking and servoing of human face are implemented through image processing. A robotic humanoid head named Amir-II, equipped with web cam and servoing mechanism is used as the platform. The robotic head tracks the human face within the field-of-vision (FOV) while the servoing mechanism ensures the detected human face remains at the center of its FOV. The algorithm developed...
This paper presents the development of graphical user interface (GUI) for Humanoid Head Robot Amir-II. The GUI serves as a monitoring tool for the robot operation which includes the visual input from a webcam as its eye and the positioning of the Dynamixel AX-12 robot actuators. Matlab Graphical User Interface Development Environment (Matlab GUIDE) is used in developing the GUI which enables Matlab...
Recent research suggests that children with autism exhibit certain positive social behaviors while interacting with robots that are not observed while interacting with their peers, caregivers, and therapists. This paper explores trends in robot-assisted autism therapy, as well as some of the specific therapies that have been shown to elicit desirable social interactions when working with children...
Performing general human behavior by experts' navigation is expected to be realized as wearable and ubiquitous technologies and computing develop. For simple, ordinary behavior, a person does not need the assistance of an expert. However, if one is standing next to an injured/ill person, one needs the instruction on performing first aid treatment from an expert. The wearer of the wearable behavior...
What would humans be like if nature had invented the wheel? Golem Krang is a novel humanoid torso designed at Georgia Tech. The robot dynamically transforms from a .5 m static to a 1.5 m dynamic configuration. Our robot development has led to two advances in the design of platforms for mobility and manipulation: (1) A 2-DOF robot base that autonomously stands from horizontal rest; (2) A 4-DOF humanoid...
Human motion coordination is a long-standing research issue in biomechanics, and it should also have some implications for humanoid robot control.We have built a whole-body somatosensory reflex model based on our neuromusculoskeletal model and identified its parameters through non-invasive measurements and statistical analysis. Such models are crucial for analyzing and estimating signals in the nervous...
A talking and singing robot which adaptively learns the vocalization skill by an auditory feedback learning is being developed. The fundamental frequency and the spectrum envelope determine the principal characteristics of a sound. The former is the characteristic of a source sound generated by a vibrating object, and the latter is operated by the work of the resonance effects. In vocalization, the...
This paper introduces a kinematically constrained closed loop inverse kinematics algorithm for motion control of robots or other articulated rigid body systems. The proposed strategy utilizes gradients of collision and joint limit potential functions to arrive at an appropriate weighting matrix to penalize and dampen motion approaching constraint surfaces. The method is particularly suitable for self...
Yoyo playing may seem easy for a human, but it is a challenging problem for a humanoid robot. This paper presents an approach to generate yoyo motions for the humanoid robot, HRP-2, based on motion recorded from human yoyo playing, dynamical models and numerical optimal control techniques. We recorded vertical yoyo playing of 4 subjects measuring yoyo height and rotation angle as well as the corresponding...
Allowing robots to communicate naturally with humans is an important goal for social robotics. Most approaches have focused on building high-level probabilistic cognitive models. However, research in cognitive science shows that people often build common ground for communication with each other by seeking and providing evidence of understanding through behaviors like mimicry. Predictive State Representations...
Teaching a robot to learn new knowledge is a repetitive and tedious process. In order to accelerate the process, we propose a novel template-based approach for robot arm movement imitation. This algorithm selects a previously observed path demonstrated by a human and generates a path in a novel situation based on pairwise mapping of invariant feature locations present in both the demonstrated and...
The planning of grasping motions is demanding due to the complexity of modern robot systems. In Programming by Demonstration, the observation of a human teacher allows to draw additional information about grasping strategies. Rosell showed, that the motion planning problem can be simplified by globally restricting the set of valid configurations to a learned subspace. In this work, the transformation...
This paper presents our recently developed humanoid neck system that can effectively mimic motion of human neck with very low motion noises. The feature of low motion noises allows our system to work like a real human head/neck. Thus the level of acoustic noises from wearable equipments, such as donning respirators or chemical-resistant jackets, induced by human head motion can be simulated and investigated...
In order to execute multiple tasks in offices and houses, robots require a large amount of information. If each item that is part of the ambience is endowed with some intelligence, robots can simply change the state of the item as requested by the item itself. We refer to such an ambience as “intelligent ambience (IA).” This paper describes a constitution method for designing an IA. We constructed...
A robot's head is important both for directional sensors and, in human-directed robotics, as the single most visible interaction interface. However, designing a robot's head faces contradicting requirements when integrating powerful sensing with social expression. Furher, reactions of the general public show that current head designs often cause negative user reactions and distract from the functional...
Robot learning by imitation has become a key topic in robotics research in the last years, due to the increasing interest in social robots. While several architectures that deal with this topic have been proposed, few efforts have been done in finding unified formats that may help in analyzing and comparing these architectures. This paper firstly proposes a set of components that can be identified...
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