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We present a robot navigation system that uses an imitation learning framework to successfully navigate in complex environments. Our framework takes a pre-built 3D scan of a real environment and trains an agent from pre-generated expert…

Robotics · Computer Science 2020-09-28 David Watkins-Valls , Jingxi Xu , Nicholas Waytowich , Peter Allen

Most prior methods for learning navigation policies require access to simulation environments, as they need online policy interaction and rely on ground-truth maps for rewards. However, building simulators is expensive (requires manual…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Meera Hahn , Devendra Chaplot , Shubham Tulsiani , Mustafa Mukadam , James M. Rehg , Abhinav Gupta

Real world visual navigation requires robots to operate in unfamiliar, human-occupied dynamic environments. Navigation around humans is especially difficult because it requires anticipating their future motion, which can be quite…

Robotics · Computer Science 2021-02-16 Varun Tolani , Somil Bansal , Aleksandra Faust , Claire Tomlin

Learning is an inherently continuous phenomenon. When humans learn a new task there is no explicit distinction between training and inference. As we learn a task, we keep learning about it while performing the task. What we learn and how we…

Computer Vision and Pattern Recognition · Computer Science 2019-03-28 Mitchell Wortsman , Kiana Ehsani , Mohammad Rastegari , Ali Farhadi , Roozbeh Mottaghi

In recent years, learning-based approaches have demonstrated significant promise in addressing intricate navigation tasks. Traditional methods for training deep neural network navigation policies rely on meticulously designed reward…

Robotics · Computer Science 2023-12-01 Wenzhe Cai , Teng Wang , Guangran Cheng , Lele Xu , Changyin Sun

We propose to directly map raw visual observations and text input to actions for instruction execution. While existing approaches assume access to structured environment representations or use a pipeline of separately trained models, we…

Computation and Language · Computer Science 2017-07-25 Dipendra Misra , John Langford , Yoav Artzi

Visual navigation is a task of training an embodied agent by intelligently navigating to a target object (e.g., television) using only visual observations. A key challenge for current deep reinforcement learning models lies in the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Juncheng Li , Xin Wang , Siliang Tang , Haizhou Shi , Fei Wu , Yueting Zhuang , William Yang Wang

While learning models of intuitive physics is an increasingly active area of research, current approaches still fall short of natural intelligences in one important regard: they require external supervision, such as explicit access to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Sebastien Ehrhardt , Aron Monszpart , Niloy Mitra , Andrea Vedaldi

This paper presents a framework for training an agent to actively request help in object-goal navigation tasks, with feedback indicating the location of the target object in its field of view. To make the agent more robust in scenarios…

Machine Learning · Computer Science 2023-03-29 Jenny Zhang , Samson Yu , Jiafei Duan , Cheston Tan

"Embodied visual navigation" problem requires an agent to navigate in a 3D environment mainly rely on its first-person observation. This problem has attracted rising attention in recent years due to its wide application in autonomous…

Robotics · Computer Science 2021-10-12 Fengda Zhu , Yi Zhu , Vincent CS Lee , Xiaodan Liang , Xiaojun Chang

Deep Reinforcement Learning has been successfully applied in various computer games [8]. However, it is still rarely used in real-world applications, especially for the navigation and continuous control of real mobile robots [13]. Previous…

We propose a light-weight, self-supervised adaptation for a visual navigation agent to generalize to unseen environment. Given an embodied agent trained in a noiseless environment, our objective is to transfer the agent to a noisy…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Eun Sun Lee , Junho Kim , Young Min Kim

In this work, we present a memory-augmented approach for image-goal navigation. Earlier attempts, including RL-based and SLAM-based approaches have either shown poor generalization performance, or are heavily-reliant on pose/depth sensors.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-06 Lina Mezghani , Sainbayar Sukhbaatar , Thibaut Lavril , Oleksandr Maksymets , Dhruv Batra , Piotr Bojanowski , Karteek Alahari

Vision guided navigation requires processing complex visual information to inform task-orientated decisions. Applications include autonomous robots, self-driving cars, and assistive vision for humans. A key element is the extraction and…

Robotics · Computer Science 2022-09-20 Jaime Ruiz-Serra , Jack White , Stephen Petrie , Tatiana Kameneva , Chris McCarthy

It is common to implicitly assume access to intelligently captured inputs (e.g., photos from a human photographer), yet autonomously capturing good observations is itself a major challenge. We address the problem of learning to look around:…

Computer Vision and Pattern Recognition · Computer Science 2017-12-22 Dinesh Jayaraman , Kristen Grauman

Inspired by research in psychology, we introduce a behavioral approach for visual navigation using topological maps. Our goal is to enable a robot to navigate from one location to another, relying only on its visual input and the…

Computer Vision and Pattern Recognition · Computer Science 2019-03-04 Kevin Chen , Juan Pablo de Vicente , Gabriel Sepulveda , Fei Xia , Alvaro Soto , Marynel Vazquez , Silvio Savarese

Robot navigation in mapless environment is one of the essential problems and challenges in mobile robots. Deep reinforcement learning is a promising technique to tackle the task of mapless navigation. Since reinforcement learning requires a…

Robotics · Computer Science 2019-04-23 Liulong Ma , Yanjie Liu* , Jiao Chen

We propose a novel architecture and training paradigm for training realistic PointGoal Navigation -- navigating to a target coordinate in an unseen environment under actuation and sensor noise without access to ground-truth localization.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Guillermo Grande , Dhruv Batra , Erik Wijmans

Recently, model-free reinforcement learning algorithms have been shown to solve challenging problems by learning from extensive interaction with the environment. A significant issue with transferring this success to the robotics domain is…

Artificial Intelligence · Computer Science 2017-11-30 Jake Bruce , Niko Suenderhauf , Piotr Mirowski , Raia Hadsell , Michael Milford

Advances in visual navigation methods have led to intelligent embodied navigation agents capable of learning meaningful representations from raw RGB images and perform a wide variety of tasks involving structural and semantic reasoning.…

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