Vogtareuth Rehab Depth Datasets: Benchmark for Marker-less Posture Estimation in Rehabilitation

TL;DR

This paper introduces two new depth datasets specific to rehabilitation exercises, enabling better training and evaluation of marker-less posture estimation models for complex rehab postures.

Contribution

The paper provides the first rehabilitation-specific depth datasets for posture estimation, addressing a gap in existing benchmarks and facilitating improved model training.

Findings

Performance drops when applying non-rehab trained models to rehab data

Rehab-specific datasets improve training for complex postures

Datasets will be publicly released for research use

Abstract

Posture estimation using a single depth camera has become a useful tool for analyzing movements in rehabilitation. Recent advances in posture estimation in computer vision research have been possible due to the availability of large-scale pose datasets. However, the complex postures involved in rehabilitation exercises are not represented in the existing benchmark depth datasets. To address this limitation, we propose two rehabilitation-specific pose datasets containing depth images and 2D pose information of patients, both adult and children, performing rehab exercises. We use a state-of-the-art marker-less posture estimation model which is trained on a non-rehab benchmark dataset. We evaluate it on our rehab datasets, and observe that the performance degrades significantly from non-rehab to rehab, highlighting the need for these datasets. We show that our dataset can be used to train pose models to detect rehab-specific complex postures. The datasets will be released for the benefit of the research community.