Tasks prioritization for whole-body realtime imitation of human motion by humanoid robots

نویسندگان

  • Sophie Sakka
  • Louise Penna Poubel
  • Denis Cehajic
  • Sophie SAKKA
  • Louise PENNA POUBEL
  • Denis ĆEHAJIĆ
چکیده

This paper deals with on-line motion imitation of a human being by a humanoid robot using inverse kinematics (IK). First, the human observed trajectories are scaled in order to match the robot geometric and kinematic description. Second, a task prioritization process is defined using both equality and minimized constraints in the robot IK model, with four tasks: balance management, end-effectors tracking, joint limits avoidance and staying close to the human joint trajectories. The method was validated using the humanoid robot NAO.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Whole-body humanoid robot imitation with pose similarity evaluation

Imitation is considered to be a kind of social learning that allows the transfer of information, actions, behaviors, etc. Whereas current robots are unable to perform as many tasks as human, it is a natural way for them to learn by imitations, just as human does. With the humanoid robots being more intelligent, the field of robot imitation has getting noticeable advance. In this paper, we focus...

متن کامل

Imitation-Based Task Programming on a Low-Cost Humanoid Robot

Humanoid robots are complex service platforms with anthropomorphic features, specifically designed for close interaction with humans. Conventional programming strategies are hardly applicable to humanoids due to the high number of degrees of freedom that must be coordinated concurrently. Therefore, exploiting humanoids’ potential in service tasks remains an elusive goal. One of the most promisi...

متن کامل

Whole-body hierarchical motion and force control for humanoid robots

Robots acting in human environments usually need to perform multiple motion and force tasks while respecting a set of constraints. When a physical contact with the environment is established, the newly activated force task or contact constraint may interfere with other tasks. The objective of this paper is to provide a control framework that can achieve realtime control of humanoid robots perfo...

متن کامل

Task-oriented Control of Humanoid Robots through Prioritization

In humanoids, a whole-body task involves the control of multiple subtasks while complying with physical constraints imposed by the robot’s structure and the external environment. To interact in realtime with the robot, we must guarantee that these constraints are fulfilled and that essential subtasks are first accomplished. In this paper, we present a hierarchical framework that focuses on two ...

متن کامل

Enabling real-time full-body imitation: a natural way of m-ansferring human movement to humanoids

We seek intuitive, e cient ways to create and direct human-like behaviors for humanoid robots. Here we present a method to enable humanoid robots to acquire movements by imitation. The robot uses 3D vision to perceive the movements of a human teacher, and then estimates the teacher's body postures using a fast full-body inverse kinematics method that incorporates a kinematic model of the teache...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014