Search Results for author: Stephen Hausler

Found 13 papers, 4 papers with code

Reg-NF: Efficient Registration of Implicit Surfaces within Neural Fields

no code implementations15 Feb 2024 Stephen Hausler, David Hall, Sutharsan Mahendren, Peyman Moghadam

Neural fields, coordinate-based neural networks, have recently gained popularity for implicitly representing a scene.

GeoAdapt: Self-Supervised Test-Time Adaptation in LiDAR Place Recognition Using Geometric Priors

no code implementations9 Aug 2023 Joshua Knights, Stephen Hausler, Sridha Sridharan, Clinton Fookes, Peyman Moghadam

LiDAR place recognition approaches based on deep learning suffer from significant performance degradation when there is a shift between the distribution of training and test datasets, often requiring re-training the networks to achieve peak performance.

Test-time Adaptation

DisPlacing Objects: Improving Dynamic Vehicle Detection via Visual Place Recognition under Adverse Conditions

no code implementations30 Jun 2023 Stephen Hausler, Sourav Garg, Punarjay Chakravarty, Shubham Shrivastava, Ankit Vora, Michael Milford

In this work we investigate whether a prior map can be leveraged to aid in the detection of dynamic objects in a scene without the need for a 3D map or pixel-level map-query correspondences.

Binary Classification Visual Place Recognition

Locking On: Leveraging Dynamic Vehicle-Imposed Motion Constraints to Improve Visual Localization

no code implementations30 Jun 2023 Stephen Hausler, Sourav Garg, Punarjay Chakravarty, Shubham Shrivastava, Ankit Vora, Michael Milford

In this research, we propose a middle ground, demonstrated in the context of autonomous vehicles, using dynamic vehicles to provide limited pose constraint information in a 6-DoF frame-by-frame PnP-RANSAC localization pipeline.

Autonomous Vehicles Visual Localization

Boosting Performance of a Baseline Visual Place Recognition Technique by Predicting the Maximally Complementary Technique

no code implementations14 Oct 2022 Connor Malone, Stephen Hausler, Tobias Fischer, Michael Milford

One recent promising approach to the Visual Place Recognition (VPR) problem has been to fuse the place recognition estimates of multiple complementary VPR techniques using methods such as SRAL and multi-process fusion.

Visual Place Recognition

Unsupervised Complementary-aware Multi-process Fusion for Visual Place Recognition

no code implementations9 Dec 2021 Stephen Hausler, Tobias Fischer, Michael Milford

A recent approach to the Visual Place Recognition (VPR) problem has been to fuse the place recognition estimates of multiple complementary VPR techniques simultaneously.

Visual Place Recognition

Patch-NetVLAD: Multi-Scale Fusion of Locally-Global Descriptors for Place Recognition

3 code implementations CVPR 2021 Stephen Hausler, Sourav Garg, Ming Xu, Michael Milford, Tobias Fischer

Visual Place Recognition is a challenging task for robotics and autonomous systems, which must deal with the twin problems of appearance and viewpoint change in an always changing world.

Computational Efficiency Visual Localization +1

Hierarchical Multi-Process Fusion for Visual Place Recognition

1 code implementation28 Jan 2020 Stephen Hausler, Michael Milford

In this paper we present a novel, hierarchical localization system that explicitly benefits from three varying characteristics of localization techniques: the distribution of their localization hypotheses, their appearance- and viewpoint-invariant properties, and the resulting differences in where in an environment each system works well and fails.

Sensor Fusion Visual Localization +1

Filter Early, Match Late: Improving Network-Based Visual Place Recognition

no code implementations21 Jun 2019 Stephen Hausler, Adam Jacobson, Michael Milford

Our key innovation is to filter the feature maps in an early convolutional layer, but then continue to run the network and extract a feature vector using a later layer in the same network.

Visual Place Recognition

Multi-Process Fusion: Visual Place Recognition Using Multiple Image Processing Methods

1 code implementation8 Mar 2019 Stephen Hausler, Adam Jacobson, Michael Milford

In this paper we address these shortcomings with a novel "multi-sensor" fusion approach applied to multiple image processing methods for a single visual image stream, combined with a dynamic sequence matching length technique and an automatic processing method weighting scheme.

Robotics

Look No Deeper: Recognizing Places from Opposing Viewpoints under Varying Scene Appearance using Single-View Depth Estimation

1 code implementation20 Feb 2019 Sourav Garg, Madhu Babu V, Thanuja Dharmasiri, Stephen Hausler, Niko Suenderhauf, Swagat Kumar, Tom Drummond, Michael Milford

Visual place recognition (VPR) - the act of recognizing a familiar visual place - becomes difficult when there is extreme environmental appearance change or viewpoint change.

Robotics

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