[Mobile phone based liquid crystal thermal imaging method and its medical implementation]

Area of Science:

• Medical Imaging
• Biomedical Engineering
• Thermal Physiology

Background:

• Accurate skin temperature measurement is crucial for diagnosing various health conditions.
• Existing medical imaging techniques for temperature mapping can be expensive and inaccessible.
• There is a need for low-cost, portable solutions for quantitative thermal imaging.

Purpose of the Study:

• To develop a novel, mobile phone-based strategy for quantitative human skin temperature mapping.
• To validate the accuracy of the developed imaging method using digital image processing and a bioheat transfer model.
• To explore the potential of this technology for pervasive health monitoring.

Main Methods:

• Utilizing a mobile phone camera to capture visual images of thermochromic liquid crystal (TLC) pre-painted on human skin.
• Applying digital image processing techniques to convert captured images into thermographies based on a pre-established Temperature-Hue curve.
• Reconstructing skin temperature distribution and calculating thermal parameters using a bioheat transfer model.

Main Results:

• Successfully developed a mobile phone-based system for quantitative skin temperature mapping.
• Demonstrated the transformation of visual images into accurate thermographies through digital image processing.
• Calculated additional thermal parameters relevant to body health status.

Conclusions:

• The developed mobile phone imaging strategy provides a low-cost and pervasive method for mapping human skin temperature.
• This technique holds potential for accessible and widespread application in health monitoring and diagnostics.
• Further development could integrate this into ubiquitous health assessment tools.