Search Results for author: Stefan Becker

Found 15 papers, 2 papers with code

Revisiting Click-based Interactive Video Object Segmentation

1 code implementation3 Mar 2022 Stephane Vujasinovic, Sebastian Bullinger, Stefan Becker, Norbert Scherer-Negenborn, Michael Arens, Rainer Stiefelhagen

While current methods for interactive Video Object Segmentation (iVOS) rely on scribble-based interactions to generate precise object masks, we propose a Click-based interactive Video Object Segmentation (CiVOS) framework to simplify the required user workload as much as possible.

Interactive Video Object Segmentation Object +3

An Evaluation of Trajectory Prediction Approaches and Notes on the TrajNet Benchmark

no code implementations19 May 2018 Stefan Becker, Ronny Hug, Wolfgang Hübner, Michael Arens

In recent years, there is a shift from modeling the tracking problem based on Bayesian formulation towards using deep neural networks.

Trajectory Prediction

Particle-based pedestrian path prediction using LSTM-MDL models

no code implementations16 Apr 2018 Ronny Hug, Stefan Becker, Wolfgang Hübner, Michael Arens

Recurrent neural networks are able to learn complex long-term relationships from sequential data and output a pdf over the state space.

An RNN-based IMM Filter Surrogate

no code implementations5 Feb 2019 Stefan Becker, Ronny Hug, Wolfgang Hübner, Michael Arens

The problem of varying dynamics of tracked objects, such as pedestrians, is traditionally tackled with approaches like the Interacting Multiple Model (IMM) filter using a Bayesian formulation.

A Short Note on Analyzing Sequence Complexity in Trajectory Prediction Benchmarks

no code implementations27 Mar 2020 Ronny Hug, Stefan Becker, Wolfgang Hübner, Michael Arens

The analysis and quantification of sequence complexity is an open problem frequently encountered when defining trajectory prediction benchmarks.

Quantization Trajectory Prediction

Quantifying the Complexity of Standard Benchmarking Datasets for Long-Term Human Trajectory Prediction

no code implementations28 May 2020 Ronny Hug, Stefan Becker, Wolfgang Hübner, Michael Arens

Methods to quantify the complexity of trajectory datasets are still a missing piece in benchmarking human trajectory prediction models.

Benchmarking Quantization +1

Integration of the 3D Environment for UAV Onboard Visual Object Tracking

no code implementations6 Aug 2020 Stéphane Vujasinović, Stefan Becker, Timo Breuer, Sebastian Bullinger, Norbert Scherer-Negenborn, Michael Arens

The 3D reconstruction of the scene is computed with an image-based Structure-from-Motion (SfM) component that enables us to leverage a state estimator in the corresponding 3D scene during tracking.

3D Reconstruction Object +2

Handling Missing Observations with an RNN-based Prediction-Update Cycle

no code implementations22 Mar 2021 Stefan Becker, Ronny Hug, Wolfgang Hübner, Michael Arens, Brendan T. Morris

For providing a full temporal filtering cycle, a basic RNN is extended to take observations and the associated belief about its accuracy into account for updating the current state.

Imputation Time Series +1

MissFormer: (In-)attention-based handling of missing observations for trajectory filtering and prediction

no code implementations30 Jun 2021 Stefan Becker, Ronny Hug, Wolfgang Hübner, Michael Arens, Brendan T. Morris

By providing missing tokens, binary-encoded missing events, the model learns to in-attend to missing data and infers a complete trajectory conditioned on the remaining inputs.

Object Object Tracking +2

Generating Synthetic Training Data for Deep Learning-Based UAV Trajectory Prediction

no code implementations1 Jul 2021 Stefan Becker, Ronny Hug, Wolfgang Hübner, Michael Arens, Brendan T. Morris

To demonstrate the applicability of the synthetic trajectory data, we show that an RNN-based prediction model solely trained on the generated data can outperform classic reference models on a real-world UAV tracking dataset.

motion prediction Object Tracking +1

Bézier Curve Gaussian Processes

no code implementations3 May 2022 Ronny Hug, Stefan Becker, Wolfgang Hübner, Michael Arens, Jürgen Beyerer

Probabilistic models for sequential data are the basis for a variety of applications concerned with processing timely ordered information.

Bayesian Inference Gaussian Processes +2

Eigenpatches -- Adversarial Patches from Principal Components

no code implementations19 Jun 2023 Jens Bayer, Stefan Becker, David Münch, Michael Arens

The patches of these so-called evasion attacks are computational expensive to produce and require full access to the attacked detector.

Object

Utilizing dataset affinity prediction in object detection to assess training data

no code implementations16 Nov 2023 Stefan Becker, Jens Bayer, Ronny Hug, Wolfgang Hübner, Michael Arens

Data pooling offers various advantages, such as increasing the sample size, improving generalization, reducing sampling bias, and addressing data sparsity and quality, but it is not straightforward and may even be counterproductive.

object-detection Object Detection

Generating Synthetic Ground Truth Distributions for Multi-step Trajectory Prediction using Probabilistic Composite Bézier Curves

no code implementations5 Apr 2024 Ronny Hug, Stefan Becker, Wolfgang Hübner, Michael Arens

An appropriate data basis grants one of the most important aspects for training and evaluating probabilistic trajectory prediction models based on neural networks.

Trajectory Prediction

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