Loop Closure Detection

25 papers with code • 0 benchmarks • 3 datasets

Loop closure detection is the process of detecting whether an agent has returned to a previously visited location.

( Image credit: Backtracking Regression Forests for Accurate Camera Relocalization )

On the descriptive power of LiDAR intensity images for segment-based loop closing in 3-D SLAM

LRMPUT/segmap_vis_views 3 Aug 2021

We propose an extension to the segment-based global localization method for LiDAR SLAM using descriptors learned considering the visual context of the segments.

17
03 Aug 2021

Probabilistic Appearance-Invariant Topometric Localization with New Place Awareness

mingu6/TopometricLoc 16 Jul 2021

Probabilistic state-estimation approaches offer a principled foundation for designing localization systems, because they naturally integrate sequences of imperfect motion and exteroceptive sensor data.

8
16 Jul 2021

AttDLNet: Attention-based DL Network for 3D LiDAR Place Recognition

cybonic/attdlnet 17 Jun 2021

LiDAR-based place recognition is one of the key components of SLAM and global localization in autonomous vehicles and robotics applications.

5
17 Jun 2021

NDT-Transformer: Large-Scale 3D Point Cloud Localisation using the Normal Distribution Transform Representation

dachengxiaocheng/NDT-Transformer 23 Mar 2021

Benefiting from the NDT representation and NDT-Transformer network, the learned global descriptors are enriched with both geometrical and contextual information.

86
23 Mar 2021

LCDNet: Deep Loop Closure Detection and Point Cloud Registration for LiDAR SLAM

robot-learning-freiburg/LCDNet 8 Mar 2021

Loop closure detection is an essential component of Simultaneous Localization and Mapping (SLAM) systems, which reduces the drift accumulated over time.

150
08 Mar 2021

Visual place recognition: A survey from deep learning perspective

ZhangXiwuu/Awesome_visual_place_recognition_datasets 28 Nov 2020

Visual place recognition has attracted widespread research interest in multiple fields such as computer vision and robotics.

80
28 Nov 2020

Fast and Incremental Loop Closure Detection with Deep Features and Proximity Graphs

anshan-ar/fild 29 Sep 2020

In recent years, the robotics community has extensively examined methods concerning the place recognition task within the scope of simultaneous localization and mapping applications. This article proposes an appearance-based loop closure detection pipeline named ``FILD++" (Fast and Incremental Loop closure Detection). First, the system is fed by consecutive images and, via passing them twice through a single convolutional neural network, global and local deep features are extracted. Subsequently, a hierarchical navigable small-world graph incrementally constructs a visual database representing the robot's traversed path based on the computed global features. Finally, a query image, grabbed each time step, is set to retrieve similar locations on the traversed route. An image-to-image pairing follows, which exploits local features to evaluate the spatial information.

20
29 Sep 2020

Place Recognition in Forests with Urquhart Tessellations

gnardari/urquhart 23 Sep 2020

In this letter, we present a novel descriptor based on Urquhart tessellations derived from the position of trees in a forest.

4
23 Sep 2020

DXSLAM: A Robust and Efficient Visual SLAM System with Deep Features

ivipsourcecode/dxslam 12 Aug 2020

For visual SLAM algorithms, though the theoretical framework has been well established for most aspects, feature extraction and association is still empirically designed in most cases, and can be vulnerable in complex environments.

395
12 Aug 2020

Dynamic Object Tracking and Masking for Visual SLAM

introlab/dotmask 31 Jul 2020

In dynamic environments, performance of visual SLAM techniques can be impaired by visual features taken from moving objects.

26
31 Jul 2020