Search Results for author: Bharadwaj Amrutur

Found 15 papers, 2 papers with code

Event-Triggered Polynomial Control for Trajectory Tracking of Unicycle Robots

no code implementations30 Aug 2023 Anusree Rajan, Harini V, Bharadwaj Amrutur, Pavankumar Tallapragada

In this control method, each control input signal between two consecutive events is a polynomial.

Stochastic Action Prediction for Imitation Learning

no code implementations26 Dec 2020 Sagar Gubbi Venkatesh, Nihesh Rathod, Shishir Kolathaya, Bharadwaj Amrutur

Imitation learning is a data-driven approach to acquiring skills that relies on expert demonstrations to learn a policy that maps observations to actions.

Action Generation Imitation Learning

Spatial Reasoning from Natural Language Instructions for Robot Manipulation

no code implementations26 Dec 2020 Sagar Gubbi Venkatesh, Anirban Biswas, Raviteja Upadrashta, Vikram Srinivasan, Partha Talukdar, Bharadwaj Amrutur

Robots that can manipulate objects in unstructured environments and collaborate with humans can benefit immensely by understanding natural language.

Robot Manipulation

One-Shot Object Localization Using Learnt Visual Cues via Siamese Networks

no code implementations26 Dec 2020 Sagar Gubbi Venkatesh, Bharadwaj Amrutur

A robot that can operate in novel and unstructured environments must be capable of recognizing new, previously unseen, objects.

Object Object Localization

Multi-Instance Aware Localization for End-to-End Imitation Learning

no code implementations26 Dec 2020 Sagar Gubbi Venkatesh, Raviteja Upadrashta, Shishir Kolathaya, Bharadwaj Amrutur

Existing architectures for imitation learning using image-to-action policy networks perform poorly when presented with an input image containing multiple instances of the object of interest, especially when the number of expert demonstrations available for training are limited.

Imitation Learning

Scene Text Detection for Augmented Reality -- Character Bigram Approach to reduce False Positive Rate

no code implementations26 Dec 2020 Sagar Gubbi, Bharadwaj Amrutur

Natural scene text detection is an important aspect of scene understanding and could be a useful tool in building engaging augmented reality applications.

Scene Text Detection Scene Understanding +2

Imitation Learning for High Precision Peg-in-Hole Tasks

no code implementations26 Dec 2020 Sagar Gubbi, Shishir Kolathaya, Bharadwaj Amrutur

Industrial robot manipulators are not able to match the precision and speed with which humans are able to execute contact rich tasks even to this day.

Imitation Learning Vocal Bursts Intensity Prediction

Teaching Robots Novel Objects by Pointing at Them

no code implementations25 Dec 2020 Sagar Gubbi Venkatesh, Raviteja Upadrashta, Shishir Kolathaya, Bharadwaj Amrutur

Robots that must operate in novel environments and collaborate with humans must be capable of acquiring new knowledge from human experts during operation.

Object

Robust Quadrupedal Locomotion on Sloped Terrains: A Linear Policy Approach

1 code implementation30 Oct 2020 Kartik Paigwar, Lokesh Krishna, Sashank Tirumala, Naman Khetan, Aditya Sagi, Ashish Joglekar, Shalabh Bhatnagar, Ashitava Ghosal, Bharadwaj Amrutur, Shishir Kolathaya

In particular, the parameters of the end-foot trajectories are shaped via a linear feedback policy that takes the torso orientation and the terrain slope as inputs.

Learning Stable Manoeuvres in Quadruped Robots from Expert Demonstrations

no code implementations28 Jul 2020 Sashank Tirumala, Sagar Gubbi, Kartik Paigwar, Aditya Sagi, Ashish Joglekar, Shalabh Bhatnagar, Ashitava Ghosal, Bharadwaj Amrutur, Shishir Kolathaya

First, multiple simpler policies are trained to generate trajectories for a discrete set of target velocities and turning radius.

Vermillion: A High-Performance Scalable IoT Middleware for Smart Cities

3 code implementations14 Mar 2020 Poorna Chandra Tejasvi, Vasanth Rajaraman, Arun Babu Puthuparambil, Akhil Pankaj, Bharadwaj Amrutur

In this paper, we present "Vermillion'', a scalable, secure and open-source IoT middleware for smart cities which provides in-built support for scaling-out.

Distributed, Parallel, and Cluster Computing

Learning Active Spine Behaviors for Dynamic and Efficient Locomotion in Quadruped Robots

no code implementations15 May 2019 Shounak Bhattacharya, Abhik Singla, Abhimanyu, Dhaivat Dholakiya, Shalabh Bhatnagar, Bharadwaj Amrutur, Ashitava Ghosal, Shishir Kolathaya

In this work, we provide a simulation framework to perform systematic studies on the effects of spinal joint compliance and actuation on bounding performance of a 16-DOF quadruped spined robot Stoch 2.

Realizing Learned Quadruped Locomotion Behaviors through Kinematic Motion Primitives

no code implementations9 Oct 2018 Abhik Singla, Shounak Bhattacharya, Dhaivat Dholakiya, Shalabh Bhatnagar, Ashitava Ghosal, Bharadwaj Amrutur, Shishir Kolathaya

Leveraging on this underlying structure, we then realize walking in Stoch by a straightforward reconstruction of joint trajectories from kMPs.

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