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Christian Holz

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Book Open access Oct 2026

μDPad: A Large-Scale Multimodal PPG and IMU Dataset for Wrist-Worn Microgesture Recognition

Gestures provide a natural interaction modality for mobile and wearable devices. However, most prior work focuses on macro gestures involving large wrist or arm movements, which are fatiguing and socially conspicuous. In contrast, microgestures, subtle, low-effort finger movements that can be performed one-handed and w...

L. Hauptmann, Dominik Hollidt, Xin-Tong Liu et al. · 0 citations
#computer vision Preprint Aug 2026

EgoPHI: Estimating 3D Hand-Object Contact and Force from Egocentric Vision

This work presents EgoPHI, the first method that jointly estimates dense contact maps and 3D force distributions on hand and object meshes from a single monocular RGB image and object geometry, and demonstrates that EgoPHI improves force estimation over existing approaches while generalizing to unseen datasets.

Andela Ilic, Rachel Schuchert, Yi-Jing Jiang et al. · 0 citations
Preprint Aug 2026

Aura: Dynamic Intra-Turn Emotion-Aware Adaptation of Large Language Model Responses

Aura, a framework that enables LLM systems to dynamically modulate output based on a user's evolving emotions, is introduced and indicates that real-time, context-sensitive interventions can improve learning efficiency and user satisfaction without observable degradation in factual accuracy.

Rachel Schuchert, Christian Holz · 0 citations

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