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Analysis of normal human eye with different age groups using infrared images
U Rajendra Acharya1, E Y K Ng, Gerk Chang Yee
1School of Engineering, Division of ECE, Ngee Ann Polytechnic, Singapore 599489, Singapore. aru@np.edu.sg
Journal of Medical Systems
|May 5, 2009
Summary
Infrared (IR) imaging analyzes ocular surface temperature (OST) in different age groups. This noninvasive technique reveals distinct temperature variations, aiding health assessment.
Area of Science:
- Ophthalmology
- Medical Imaging
- Biomedical Engineering
Background:
- Human body temperature is a key health indicator.
- Infrared (IR) imaging is a noninvasive, harmless diagnostic tool widely used in medicine.
- Ocular surface temperature (OST) can provide insights into eye health.
Purpose of the Study:
- To analyze ocular surface temperature (OST) in normal subjects across different age categories (young, middle, old) using IR imaging.
- To propose and evaluate parameters for studying OST variability.
- To determine if OST differs significantly between age groups.
Main Methods:
- Applied image processing techniques to 67 normal infrared (IR) eye images.
- Analyzed average ocular temperature and temperature deviation as key parameters.
- Compared OST parameters across young, middle, and old age groups.
Main Results:
- Distinct ranges for average ocular temperature and temperature deviation were identified for different age groups.
- The proposed parameters showed statistically significant differences between age categories ('p' < 0.05).
Conclusions:
- Infrared imaging and proposed parameters effectively differentiate ocular surface temperature across age groups.
- OST variability analysis using IR imaging is a promising method for health assessment in ophthalmology.
