no code implementations • 21 Mar 2023 • Haitz Sáez de Ocáriz Borde, Álvaro Arroyo, Ingmar Posner
Graph Neural Networks leverage the connectivity structure of graphs as an inductive bias.
no code implementations • 6 Mar 2023 • Jun Yamada, Jack Collins, Ingmar Posner
In this work, we propose a system for efficient skill acquisition that leverages an object-centric generative model (OCGM) for versatile goal identification to specify a goal for MP combined with RL to solve complex manipulation tasks in obstructed environments.
no code implementations • 6 Mar 2023 • Jun Yamada, Chia-Man Hung, Jack Collins, Ioannis Havoutis, Ingmar Posner
Motion planning framed as optimisation in structured latent spaces has recently emerged as competitive with traditional methods in terms of planning success while significantly outperforming them in terms of computational speed.
no code implementations • 6 Feb 2023 • Branton DeMoss, Paul Duckworth, Nick Hawes, Ingmar Posner
We propose DITTO, an offline imitation learning algorithm which uses world models and on-policy reinforcement learning to addresses the problem of covariate shift, without access to an oracle or any additional online interactions.
no code implementations • 21 Oct 2022 • Chia-Man Hung, Shaohong Zhong, Walter Goodwin, Oiwi Parker Jones, Martin Engelcke, Ioannis Havoutis, Ingmar Posner
We present a novel approach to path planning for robotic manipulators, in which paths are produced via iterative optimisation in the latent space of a generative model of robot poses.
no code implementations • 22 Jun 2022 • Anson Lei, Bernhard Schölkopf, Ingmar Posner
In doing so, VCD significantly extends the capabilities of the current state-of-the-art in latent world models while also comparing favourably in terms of prediction accuracy.
no code implementations • 7 Jun 2022 • Yizhe Wu, Oiwi Parker Jones, Ingmar Posner
We present ObPose, an unsupervised object-centric inference and generation model which learns 3D-structured latent representations from RGB-D scenes.
no code implementations • 2 May 2022 • Alexander L. Mitchell, Wolfgang Merkt, Mathieu Geisert, Siddhant Gangapurwala, Martin Engelcke, Oiwi Parker Jones, Ioannis Havoutis, Ingmar Posner
Quadruped locomotion is rapidly maturing to a degree where robots now routinely traverse a variety of unstructured terrains.
1 code implementation • 7 Apr 2022 • Walter Goodwin, Sagar Vaze, Ioannis Havoutis, Ingmar Posner
Object pose estimation is an important component of most vision pipelines for embodied agents, as well as in 3D vision more generally.
no code implementations • 20 Jan 2022 • Sasha Salter, Kristian Hartikainen, Walter Goodwin, Ingmar Posner
The ability to discover behaviours from past experience and transfer them to new tasks is a hallmark of intelligent agents acting sample-efficiently in the real world.
no code implementations • 9 Dec 2021 • Alexander L. Mitchell, Wolfgang Merkt, Mathieu Geisert, Siddhant Gangapurwala, Martin Engelcke, Oiwi Parker Jones, Ioannis Havoutis, Ingmar Posner
This encourages disentanglement such that application of a drive signal to a single dimension of the latent state induces holistic plans synthesising a continuous variety of trot styles.
1 code implementation • 15 Nov 2021 • Walter Goodwin, Sagar Vaze, Ioannis Havoutis, Ingmar Posner
Object rearrangement has recently emerged as a key competency in robot manipulation, with practical solutions generally involving object detection, recognition, grasping and high-level planning.
no code implementations • 28 Oct 2021 • Nicholas Roy, Ingmar Posner, Tim Barfoot, Philippe Beaudoin, Yoshua Bengio, Jeannette Bohg, Oliver Brock, Isabelle Depatie, Dieter Fox, Dan Koditschek, Tomas Lozano-Perez, Vikash Mansinghka, Christopher Pal, Blake Richards, Dorsa Sadigh, Stefan Schaal, Gaurav Sukhatme, Denis Therien, Marc Toussaint, Michiel Van de Panne
Machine learning has long since become a keystone technology, accelerating science and applications in a broad range of domains.
no code implementations • 5 Jul 2021 • Edward Wagstaff, Fabian B. Fuchs, Martin Engelcke, Michael A. Osborne, Ingmar Posner
We provide a theoretical analysis of Deep Sets which shows that this universal approximation property is only guaranteed if the model's latent space is sufficiently high-dimensional.
1 code implementation • NeurIPS 2021 • Victor Garcia Satorras, Emiel Hoogeboom, Fabian B. Fuchs, Ingmar Posner, Max Welling
This paper introduces a generative model equivariant to Euclidean symmetries: E(n) Equivariant Normalizing Flows (E-NFs).
1 code implementation • NeurIPS 2021 • Martin Engelcke, Oiwi Parker Jones, Ingmar Posner
Moreover, object representations are often inferred using RNNs which do not scale well to large images or iterative refinement which avoids imposing an unnatural ordering on objects in an image but requires the a priori initialisation of a fixed number of object representations.
no code implementations • 22 Mar 2021 • Chia-Man Hung, Li Sun, Yizhe Wu, Ioannis Havoutis, Ingmar Posner
To recover from high uncertainty cases, the robot monitors its uncertainty along a trajectory and explores possible actions in the state-action space to bring itself to a more certain state.
2 code implementations • 26 Feb 2021 • Fabian B. Fuchs, Edward Wagstaff, Justas Dauparas, Ingmar Posner
Motivated by this application, we implement an iterative version of the SE(3)-Transformer, an SE(3)-equivariant attention-based model for graph data.
no code implementations • 29 Nov 2020 • Rob Weston, Oiwi Parker Jones, Ingmar Posner
Here we propose to learn a radar sensor model capable of synthesising faithful radar observations based on simulated elevation maps.
1 code implementation • 13 Jul 2020 • Martin Engelcke, Oiwi Parker Jones, Ingmar Posner
A range of methods with suitable inductive biases exist to learn interpretable object-centric representations of images without supervision.
no code implementations • 3 Jul 2020 • Alexander L. Mitchell, Martin Engelcke, Oiwi Parker Jones, David Surovik, Siddhant Gangapurwala, Oliwier Melon, Ioannis Havoutis, Ingmar Posner
In addition, kinodynamic constraints are often non-differentiable and difficult to implement in an optimisation approach.
1 code implementation • NeurIPS 2020 • Sebastien Ehrhardt, Oliver Groth, Aron Monszpart, Martin Engelcke, Ingmar Posner, Niloy Mitra, Andrea Vedaldi
We present RELATE, a model that learns to generate physically plausible scenes and videos of multiple interacting objects.
1 code implementation • 19 Mar 2020 • Oliver Groth, Chia-Man Hung, Andrea Vedaldi, Ingmar Posner
Visuomotor control (VMC) is an effective means of achieving basic manipulation tasks such as pushing or pick-and-place from raw images.
no code implementations • 4 Mar 2020 • Li Sun, Daniel Adolfsson, Martin Magnusson, Henrik Andreasson, Ingmar Posner, Tom Duckett
More importantly, the Gaussian method (i. e. deep probabilistic localisation) and non-Gaussian method (i. e. MCL) can be integrated naturally via importance sampling.
2 code implementations • 29 Jan 2020 • Dan Barnes, Ingmar Posner
This paper presents a self-supervised framework for learning to detect robust keypoints for odometry estimation and metric localisation in radar.
no code implementations • ICLR 2020 • Fabian B. Fuchs, Adam R. Kosiorek, Li Sun, Oiwi Parker Jones, Ingmar Posner
Relational reasoning, the ability to model interactions and relations between objects, is valuable for robust multi-object tracking and pivotal for trajectory prediction.
no code implementations • 19 Nov 2019 • Sasha Salter, Dushyant Rao, Markus Wulfmeier, Raia Hadsell, Ingmar Posner
Image-based Reinforcement Learning is known to suffer from poor sample efficiency and generalisation to unseen visuals such as distractors (task-independent aspects of the observation space).
no code implementations • 30 Sep 2019 • Yizhe Wu, Sudhanshu Kasewa, Oliver Groth, Sasha Salter, Li Sun, Oiwi Parker Jones, Ingmar Posner
In this paper we explore the richness of information captured by the latent space of a vision-based generative model.
no code implementations • 25 Sep 2019 • Sasha Salter, Dushyant Rao, Markus Wulfmeier, Raia Hadsell, Ingmar Posner
Applying reinforcement learning (RL) to physical systems presents notable challenges, given requirements regarding sample efficiency, safety, and physical constraints compared to simulated environments.
no code implementations • 25 Sep 2019 • Yizhe Wu, Sudhanshu Kasewa, Oliver Groth, Sasha Salter, Li Sun, Oiwi Parker Jones, Ingmar Posner
In this paper we investigate an artificial agent's ability to perform task-focused tool synthesis via imagination.
no code implementations • 9 Sep 2019 • Dan Barnes, Rob Weston, Ingmar Posner
This paper presents an end-to-end radar odometry system which delivers robust, real-time pose estimates based on a learned embedding space free of sensing artefacts and distractor objects.
2 code implementations • 3 Sep 2019 • Dan Barnes, Matthew Gadd, Paul Murcutt, Paul Newman, Ingmar Posner
In this paper we present The Oxford Radar RobotCar Dataset, a new dataset for researching scene understanding using Millimetre-Wave FMCW scanning radar data.
Robotics Signal Processing
1 code implementation • ICLR 2020 • Martin Engelcke, Adam R. Kosiorek, Oiwi Parker Jones, Ingmar Posner
Generative latent-variable models are emerging as promising tools in robotics and reinforcement learning.
Ranked #1 on
Image Generation
on Multi-dSprites
no code implementations • 12 Jul 2019 • Fabian B. Fuchs, Adam R. Kosiorek, Li Sun, Oiwi Parker Jones, Ingmar Posner
The majority of contemporary object-tracking approaches do not model interactions between objects.
no code implementations • ICLR 2019 • Fabian Fuchs, Oliver Groth, Adam Kosiorek, Alex Bewley, Markus Wulfmeier, Andrea Vedaldi, Ingmar Posner
Using an adversarial stethoscope, the network is successfully de-biased, leading to a performance increase from 66% to 88%.
no code implementations • 25 Jan 2019 • Edward Wagstaff, Fabian B. Fuchs, Martin Engelcke, Ingmar Posner, Michael Osborne
Recent work on the representation of functions on sets has considered the use of summation in a latent space to enforce permutation invariance.
no code implementations • 27 Sep 2018 • Corina Gurau, Alex Bewley, Ingmar Posner
We also propose better calibration within the state of the art Faster R-CNN object detection framework and show, using the COCO dataset, that DDN helps train better calibrated object detectors.
no code implementations • 14 Jun 2018 • Fabian B. Fuchs, Oliver Groth, Adam R. Kosiorek, Alex Bewley, Markus Wulfmeier, Andrea Vedaldi, Ingmar Posner
Conversely, training on an easy dataset where visual cues are positively correlated with stability, the baseline model learns a bias leading to poor performance on a harder dataset.
1 code implementation • NeurIPS 2018 • Adam R. Kosiorek, Hyunjik Kim, Ingmar Posner, Yee Whye Teh
It can reliably discover and track objects throughout the sequence of frames, and can also generate future frames conditioning on the current frame, thereby simulating expected motion of objects.
1 code implementation • ECCV 2018 • Oliver Groth, Fabian B. Fuchs, Ingmar Posner, Andrea Vedaldi
Physical intuition is pivotal for intelligent agents to perform complex tasks.
1 code implementation • ICML 2018 • Kyriacos Shiarlis, Markus Wulfmeier, Sasha Salter, Shimon Whiteson, Ingmar Posner
Many advanced Learning from Demonstration (LfD) methods consider the decomposition of complex, real-world tasks into simpler sub-tasks.
no code implementations • 20 Dec 2017 • Markus Wulfmeier, Alex Bewley, Ingmar Posner
Continuous appearance shifts such as changes in weather and lighting conditions can impact the performance of deployed machine learning models.
no code implementations • 17 Nov 2017 • Dan Barnes, Will Maddern, Geoffrey Pascoe, Ingmar Posner
We present a self-supervised approach to ignoring "distractors" in camera images for the purposes of robustly estimating vehicle motion in cluttered urban environments.
no code implementations • 7 Aug 2017 • Jeffrey Hawke, Alex Bewley, Ingmar Posner
This paper is about enabling robots to improve their perceptual performance through repeated use in their operating environment, creating local expert detectors fitted to the places through which a robot moves.
no code implementations • 25 Jul 2017 • Markus Wulfmeier, Ingmar Posner, Pieter Abbeel
Training robots for operation in the real world is a complex, time consuming and potentially expensive task.
1 code implementation • NeurIPS 2017 • Adam R. Kosiorek, Alex Bewley, Ingmar Posner
Class-agnostic object tracking is particularly difficult in cluttered environments as target specific discriminative models cannot be learned a priori.
no code implementations • 4 Mar 2017 • Markus Wulfmeier, Alex Bewley, Ingmar Posner
Appearance changes due to weather and seasonal conditions represent a strong impediment to the robust implementation of machine learning systems in outdoor robotics.
no code implementations • 13 Dec 2016 • Markus Wulfmeier, Dushyant Rao, Ingmar Posner
Recent advances have shown the capability of Fully Convolutional Neural Networks (FCN) to model cost functions for motion planning in the context of learning driving preferences purely based on demonstration data from human drivers.
no code implementations • 5 Oct 2016 • Dan Barnes, Will Maddern, Ingmar Posner
We present a weakly-supervised approach to segmenting proposed drivable paths in images with the goal of autonomous driving in complex urban environments.
no code implementations • 29 Sep 2016 • Julie Dequaire, Dushyant Rao, Peter Ondruska, Dominic Wang, Ingmar Posner
This paper presents an end-to-end approach for tracking static and dynamic objects for an autonomous vehicle driving through crowded urban environments.
no code implementations • 21 Sep 2016 • Martin Engelcke, Dushyant Rao, Dominic Zeng Wang, Chi Hay Tong, Ingmar Posner
This paper proposes a computationally efficient approach to detecting objects natively in 3D point clouds using convolutional neural networks (CNNs).
Ranked #1 on
Object Detection
on KITTI Pedestrians Easy
no code implementations • 8 Jul 2016 • Markus Wulfmeier, Dominic Zeng Wang, Ingmar Posner
In this work, we present an approach to learn cost maps for driving in complex urban environments from a very large number of demonstrations of driving behaviour by human experts.
no code implementations • 18 Apr 2016 • Peter Ondruska, Julie Dequaire, Dominic Zeng Wang, Ingmar Posner
In this work we present a novel end-to-end framework for tracking and classifying a robot's surroundings in complex, dynamic and only partially observable real-world environments.
no code implementations • 2 Feb 2016 • Peter Ondruska, Ingmar Posner
This paper presents to the best of our knowledge the first end-to-end object tracking approach which directly maps from raw sensor input to object tracks in sensor space without requiring any feature engineering or system identification in the form of plant or sensor models.
1 code implementation • 17 Jul 2015 • Markus Wulfmeier, Peter Ondruska, Ingmar Posner
This paper presents a general framework for exploiting the representational capacity of neural networks to approximate complex, nonlinear reward functions in the context of solving the inverse reinforcement learning (IRL) problem.
no code implementations • 18 Jan 2014 • Javier Velez, Garrett Hemann, Albert S. Huang, Ingmar Posner, Nicholas Roy
In particular, the performance of detection algorithms is commonly sensitive to the position of the sensor relative to the objects in the scene.