Laser-speckle-projection-based handheld anthropometric measurement system with synchronous redundancy reduction

Area of Science:

• Biomedical Engineering
• Medical Imaging
• Rehabilitation Medicine

Background:

• Accurate human body measurement is crucial for rehabilitation medicine.
• Additive manufacturing technologies offer potential for advanced measurement tools.
• Digital image correlation using laser speckle projection provides a robust measurement technique.

Purpose of the Study:

• To develop a handheld anthropometric measurement system utilizing laser speckle projection.
• To design a flexible retroreflective marker target for multi-view data registration.
• To propose a synchronous redundancy-reduction algorithm for enhanced measurement accuracy.

Main Methods:

• Implementation of a handheld measurement system based on laser speckle projection.
• Design and application of a flexible retroreflective marker target for data registration.
• Development of a synchronous redundancy-reduction algorithm using a re-projected global disparity map.

Main Results:

• The proposed system demonstrates effectiveness and accuracy in measuring various human body parts.
• The redundancy-reduction algorithm shows high efficiency and preserves complex shape features.
• Comparative experiments confirm the superior performance of the proposed algorithm over existing methods.

Conclusions:

• The developed handheld system is effective and accurate for anthropometric measurements in rehabilitation.
• The novel redundancy-reduction algorithm significantly improves measurement efficiency and feature preservation.
• This technology holds promise for advancing human body measurement in medical applications.