# Innovative Applications of Laser Technology for Bedridden People Posture Monitoring

## TL;DR

A new laser-based system is introduced to monitor the posture of bedridden individuals without compromising privacy.

## Contribution

The novel use of low-cost structured light hardware and a custom algorithm for accurate posture classification while preserving privacy.

## Key findings

- The system achieves high accuracy in posture classification using structured infrared light.
- The design emphasizes affordability and simplicity for practical deployment in care settings.
- Experimental validation confirms the system's effectiveness in real-world conditions.

## Abstract

This article presents an innovative system for the automated classification of postures of bedridden people using laser technology. The proposed method leverages low-cost structured light hardware and a custom algorithm to determine the side on which a person is lying. The solution prioritizes patient privacy by avoiding the capture of visual images while maintaining high accuracy in classifying postures. The system includes an enhanced hardware design with structured infrared light that is tailored for affordability and simplicity, and it incorporates an improved algorithm capable of robust posture detection. The experimental results obtained under real-world conditions validate the system’s performance and highlight its potential for deployment in clinical and home care environments. This work expands upon a previous study presented at the 6th International Conference on Application of Optics and Photonics, offering additional insights, refined methodologies, and a broader scope of validation.