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Daniel Gehrig

22 accepted papers

2025

A Linear N-Point Solver for Structure and Motion from Asynchronous Tracks

ICCV 2025poster

Structure and continuous motion estimation from point correspondences is a fundamental problem in computer vision that has been powered by well-known algorithms such as the familiar 5-point or 8-point algorithm. However, despite their acclaim, these algorithms are limited to processing point corresp…

Cited by 0SourcePDFScholar
2025

ETAP: Event-based Tracking of Any Point

CVPR 2025highlight

Tracking any point (TAP) recently shifted the motion estimation paradigm from focusing on individual salient points with local templates to tracking arbitrary points with global image contexts. However, while research has mostly focused on driving the accuracy of models in nominal settings, addressi…

2025

EqNIO: Subequivariant Neural Inertial Odometry

ICLR 2025poster

Neural network-based odometry using accelerometer and gyroscope readings from a single IMU can achieve robust, and low-drift localization capabilities, through the use of _neural displacement priors (NDPs)_. These priors learn to produce denoised displacement measurements but need to ignore data var…

2025

Neural Inertial Odometry from Lie Events

RSS 2025poster

Neural displacement priors (NDPs) can reduce the drift in inertial odometry and provide uncertainty estimates that can be readily fused with off-the-shelf filters. However, they fail to generalize to different IMU sampling rates and trajectory profiles, which limits their robustness in diverse setti…

Cited by 0PDFcodeScholar
2024

An N-Point Linear Solver for Line and Motion Estimation with Event Cameras

CVPR 2024poster

Event cameras respond primarily to edges---formed by strong gradients---and are thus particularly well-suited for line-based motion estimation. Recent work has shown that events generated by a single line each satisfy a polynomial constraint which describes a manifold in the space-time volume. Multi…

Cited by 9SourcePDFScholar
2024

Deep Visual Odometry with Events and Frames

IROS 2024poster

Visual Odometry (VO) is crucial for autonomous robotic navigation, especially in GPS-denied environments like planetary terrains. To improve robustness, recent model-based VO systems have begun combining standard and event-based cameras. While event cameras excel in low-light and high-speed motion,…

Cited by 8SourcecodeScholar
2023

A 5-Point Minimal Solver for Event Camera Relative Motion Estimation

ICCV 2023oral

Event-based cameras are ideal for line-based motion estimation, since they predominantly respond to edges in the scene. However, accurately determining the camera displacement based on events continues to be an open problem. This is because line feature extraction and dynamics estimation are tightly…

Cited by 11PDFScholar
2023

Event-based Agile Object Catching with a Quadrupedal Robot

ICRA 2023poster

Quadrupedal robots are conquering various applications in indoor and outdoor environments due to their capability to navigate challenging uneven terrains. Exteroceptive information greatly enhances this capability since perceiving their surroundings allows them to adapt their controller and thus ach…

Cited by 34SourcecodeScholar
2023

From Chaos Comes Order: Ordering Event Representations for Object Recognition and Detection

ICCV 2023poster

Today, state-of-the-art deep neural networks that process events first convert them into dense, grid-like input representations before using an off-the-shelf network. However, selecting the appropriate representation for the task traditionally requires training a neural network for each representati…

Cited by 43PDFcodeScholar
2022

Bridging the Gap Between Events and Frames Through Unsupervised Domain Adaptation

RA-L 2022

Reliable perception during fast motion maneuvers or in high dynamic range environments is crucial for robotic systems. Since event cameras are robust to these challenging conditions, they have great potential to increase the reliability of robot vision. However, event-based vision has been held back

Cited by 59SourcecodeScholar
2022

ESS: Learning Event-Based Semantic Segmentation from Still Images

ECCV 2022poster

"Retrieving accurate semantic information in challenging high dynamic range (HDR) and high-speed conditions remains an open challenge for image-based algorithms due to severe image degradations. Event cameras promise to address these challenges since they feature a much higher dynamic range and are…

2022

Exploring Event Camera-Based Odometry for Planetary Robots

RA-L 2022

Due to their resilience to motion blur and high robustness in low-light and high dynamic range conditions, event cameras are poised to become enabling sensors for vision-based exploration on future Mars helicopter missions. However, existing event-based visual-inertial odometry (VIO) algorithms eith

Cited by 67SourceScholar
2022

Time Lens++: Event-Based Frame Interpolation With Parametric Non-Linear Flow and Multi-Scale Fusion

CVPR 2022poster

Recently, video frame interpolation using a combination of frame- and event-based cameras has surpassed traditional image-based methods both in terms of performance and memory efficiency. However, current methods still suffer from (i) brittle image-level fusion of complementary interpolation results…

Cited by 149PDFScholar
2021

Combining Events and Frames Using Recurrent Asynchronous Multimodal Networks for Monocular Depth Prediction

RA-L 2021

Event cameras are novel vision sensors that report per-pixel brightness changes as a stream of asynchronous “events”. They offer significant advantages compared to standard cameras due to their high temporal resolution, high dynamic range and lack of motion blur. However, events only measure the var

Cited by 162SourcecodeScholar
2021

DSEC: A Stereo Event Camera Dataset for Driving Scenarios

RA-L 2021

Once an academic venture, autonomous driving has received unparalleled corporate funding in the last decade. Still, operating conditions of current autonomous cars are mostly restricted to ideal scenarios. This means that driving in challenging illumination conditions such as night, sunrise, and sun

Cited by 498SourcecodeScholar
2021

Time Lens: Event-Based Video Frame Interpolation

CVPR 2021poster

State-of-the-art frame interpolation methods generate intermediate frames by inferring object motions in the image from consecutive key-frames. In the absence of additional information, first-order approximations, i.e. optical flow, must be used, but this choice restricts the types of motions that c…

Cited by 234PDFcodeScholar
2020

Event-based Asynchronous Sparse Convolutional Networks

ECCV 2020poster

Event cameras are bio-inspired sensors that respond to per-pixel brightness changes in the form of asynchronous and sparse “events”. Recently, pattern recognition algorithms, such as learning-based methods, have made significant progress with event cameras by converting events into synchronous dense…

2020

Video to Events: Recycling Video Datasets for Event Cameras

CVPR 2020poster

Event cameras are novel sensors that output brightness changes in the form of a stream of asynchronous "events" instead of intensity frames. They offer significant advantages with respect to conventional cameras: high dynamic range (HDR), high temporal resolution, and no motion blur. Recently, novel…

Cited by 270PDFcodeScholar
2019

End-to-End Learning of Representations for Asynchronous Event-Based Data

ICCV 2019poster

Event cameras are vision sensors that record asynchronous streams of per-pixel brightness changes, referred to as "events". They have appealing advantages over frame based cameras for computer vision, including high temporal resolution, high dynamic range, and no motion blur. Due to the sparse, non-…

Cited by 418PDFcodeScholar
2018

Asynchronous, Photometric Feature Tracking using Events and Frames

ECCV 2018poster

We present a method that leverages the complementarity of event cameras and standard cameras to track visual features with low-latency. Event cameras are novel sensors that output pixel-level brightness changes, called "events". They offer significant advantages over standard cameras, namely a very…