Millimeter-wave Imaging for Anthropometric Body Measurement
Quick Take
This study introduces a millimeter-wave radar-based framework for contactless 3D body shape measurement, enhancing privacy and workflow efficiency in clinical settings. By utilizing a weighted registration pipeline with the SMPL model, it enables accurate anthropometric data extraction through clothing, supporting diverse patient populations without requiring disrobing.
Key Points
- Utilizes millimeter-wave radar for fast, contactless body measurements.
- Employs a weighted registration pipeline to fit the SMPL body model.
- Preserves privacy by measuring through clothing without disrobing.
- Optimizes anthropometric data extraction for patients of all ages.
- Supports frequent risk assessments in clinical and care facilities.
Article Content
From source RSS / original summaryarXiv:2605. 23064v1 Announce Type: new Abstract: Body shape and circumferences are clinically informative biomarkers for risk stratification, including measures such as waist to hip ratio, limb and trunk girths, yet conventional tools such as manual tape measures and optical scanners often require undressing and sustained poses. These demands slow workflows, compromise dignity, and exclude many older adults and people with limited mobility.
To make measurement fast and contactless, we leverage millimeter-wave (mmWave) radar, which preserves privacy and operates through typical clothing, enabling quick full-body acquisition. In this work, we present a new optimization-based framework to recover 3D human shape and extract a comprehensive set of anthropometric measurements from volumetric mmWave data. Our method introduces a weighted registration pipeline that fits a parametric body model (SMPL) directly to the noisy mmWave point cloud.
The core of our contribution is a vertex-weighting strategy that modulates a Chamfer energy function for reliable surface alignment and noise elimination. We further stabilize the fit by incorporating a foot-ground plane constraint and pose priors, optimizing directly for the SMPL parameters.
Together, these components enable a fast, privacy preserving workflow that delivers high fidelity body shape and measurements through clothing without cameras or disrobing and with minimal cooperation, supporting frequent risk oriented assessments in clinics and care facilities for patients of all ages and mobility levels.
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