Search Results for author: Sascha Wirges

Found 12 papers, 1 papers with code

Sensor Data Fusion in Top-View Grid Maps using Evidential Reasoning with Advanced Conflict Resolution

no code implementations19 Apr 2022 Sven Richter, Frank Bieder, Sascha Wirges, Christoph Stiller

We present a new method to combine evidential top-view grid maps estimated based on heterogeneous sensor sources.

Mapping LiDAR and Camera Measurements in a Dual Top-View Grid Representation Tailored for Automated Vehicles

no code implementations16 Apr 2022 Sven Richter, Frank Bieder, Sascha Wirges, Christoph Stiller

We present a generic evidential grid mapping pipeline designed for imaging sensors such as LiDARs and cameras.

Fast and Robust Ground Surface Estimation from LIDAR Measurements using Uniform B-Splines

1 code implementation2 Mar 2022 Sascha Wirges, Kevin Rösch, Frank Bieder, Christoph Stiller

We propose a fast and robust method to estimate the ground surface from LIDAR measurements on an automated vehicle.

SemanticVoxels: Sequential Fusion for 3D Pedestrian Detection using LiDAR Point Cloud and Semantic Segmentation

no code implementations25 Sep 2020 Juncong Fei, Wenbo Chen, Philipp Heidenreich, Sascha Wirges, Christoph Stiller

Recently, PointPainting has been presented to eliminate this performance drop by effectively fusing the output of a semantic segmentation network instead of the raw image information.

Pedestrian Detection Semantic Segmentation

Exploiting Multi-Layer Grid Maps for Surround-View Semantic Segmentation of Sparse LiDAR Data

no code implementations13 May 2020 Frank Bieder, Sascha Wirges, Johannes Janosovits, Sven Richter, Zheyuan Wang, Christoph Stiller

This representation allows us to use well-studied deep learning architectures from the image domain to predict a dense semantic grid map using only the sparse input data of a single LiDAR scan.

Semantic Segmentation

Learned Enrichment of Top-View Grid Maps Improves Object Detection

no code implementations2 Mar 2020 Sascha Wirges, Ye Yang, Sven Richter, Haohao Hu, Christoph Stiller

We propose an object detector for top-view grid maps which is additionally trained to generate an enriched version of its input.

Object object-detection +1

Single-Stage Object Detection from Top-View Grid Maps on Custom Sensor Setups

no code implementations3 Feb 2020 Sascha Wirges, Shuxiao Ding, Christoph Stiller

We present our approach to unsupervised domain adaptation for single-stage object detectors on top-view grid maps in automated driving scenarios.

Object object-detection +2

Localization in Aerial Imagery with Grid Maps using LocGAN

no code implementations4 Jun 2019 Haohao Hu, Junyi Zhu, Sascha Wirges, Martin Lauer

In this work, we present LocGAN, our localization approach based on a geo-referenced aerial imagery and LiDAR grid maps.

Self-Supervised Flow Estimation using Geometric Regularization with Applications to Camera Image and Grid Map Sequences

no code implementations17 Apr 2019 Sascha Wirges, Johannes Gräter, Qiuhao Zhang, Christoph Stiller

We apply our approach to optical flow estimation from camera image sequences, validate on odometry estimation and suggest a method to iteratively increase optical flow estimation accuracy using the generated motion masks.

Optical Flow Estimation Scene Flow Estimation

Capturing Object Detection Uncertainty in Multi-Layer Grid Maps

no code implementations31 Jan 2019 Sascha Wirges, Marcel Reith-Braun, Martin Lauer, Christoph Stiller

Based on the estimated pose and shape uncertainty we approximate object hulls with bounded collision probability which we find helpful for subsequent trajectory planning tasks.

General Classification Object +4

An Approach to Vehicle Trajectory Prediction Using Automatically Generated Traffic Maps

no code implementations23 Feb 2018 Jannik Quehl, Haohao Hu, Sascha Wirges, Martin Lauer

In this paper, we present a new approach to vehicle trajectory prediction based on automatically generated maps containing statistical information about the behavior of traffic participants in a given area.

Trajectory Prediction

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