activity
20222025
most cited6D Rotation Representation For Unconstrained Head Pose Estimation

145 citations · 206 across the 9 of their papers we have counts for

collaborators

9 papers

cs.CV2025

Automating 3D Dataset Generation with Neural Radiance Fields

P. Schulz, T. Hempel, A. Al-Hamadi

3D detection is a critical task to understand spatial characteristics of the environment and is used in a variety of applications including robotics, augmented reality, and image r…

cs.CV2023

NITEC: Versatile Hand-Annotated Eye Contact Dataset for Ego-Vision Interaction

Thorsten Hempel, Magnus Jung, Ahmed A. Abdelrahman +1

Eye contact is a crucial non-verbal interaction modality and plays an important role in our everyday social life. While humans are very sensitive to eye contact, the capabilities o…

cs.CV2023★ 1 cited

Towards Robust and Unconstrained Full Range of Rotation Head Pose Estimation

Thorsten Hempel, Ahmed A. Abdelrahman, Ayoub Al-Hamadi

Estimating the head pose of a person is a crucial problem for numerous applications that is yet mainly addressed as a subtask of frontal pose prediction. We present a novel method…

cs.CV2023★ 17 cited

Automated Deception Detection from Videos: Using End-to-End Learning Based High-Level Features and Classification Approaches

Laslo Dinges, Marc-André Fiedler, Ayoub Al-Hamadi +4

Deception detection is an interdisciplinary field attracting researchers from psychology, criminology, computer science, and economics. We propose a multimodal approach combining d…

cs.RO2023★ 7 cited

Sentiment-based Engagement Strategies for intuitive Human-Robot Interaction

Thorsten Hempel, Laslo Dinges, Ayoub Al-Hamadi

Emotion expressions serve as important communicative signals and are crucial cues in intuitive interactions between humans. Hence, it is essential to include these fundamentals in…

cs.RO2022★ 2 cited

Semantic-Aware Environment Perception for Mobile Human-Robot Interaction

Thorsten Hempel, Marc-André Fiedler, Aly Khalifa +2

Current technological advances open up new opportunities for bringing human-machine interaction to a new level of human-centered cooperation. In this context, a key issue is the se…

cs.RO2022★ 29 cited

An Online Semantic Mapping System for Extending and Enhancing Visual SLAM

Thorsten Hempel, Ayoub Al-Hamadi

We present a real-time semantic mapping approach for mobile vision systems with a 2D to 3D object detection pipeline and rapid data association for generated landmarks. Besides the…

cs.CV2022★ 5 cited

L2CS-Net: Fine-Grained Gaze Estimation in Unconstrained Environments

Ahmed A. Abdelrahman, Thorsten Hempel, Aly Khalifa +1

Human gaze is a crucial cue used in various applications such as human-robot interaction and virtual reality. Recently, convolution neural network (CNN) approaches have made notabl…

cs.CV2022★ 145 cited

6D Rotation Representation For Unconstrained Head Pose Estimation

Thorsten Hempel, Ahmed A. Abdelrahman, Ayoub Al-Hamadi

In this paper, we present a method for unconstrained end-to-end head pose estimation. We address the problem of ambiguous rotation labels by introducing the rotation matrix formali…