Storing health data in JPEG: looking at exif area capacity limits

Area of Science:

• Biomedical Informatics
• Digital Health
• Data Standards

Background:

• Personal health monitoring devices often use proprietary data formats, hindering data interoperability.
• Digital imaging employs a standardized JPEG format with an Exchangeable Image File (Exif) area, familiar to users.
• A unified approach to storing diverse health data is needed for easier management.

Purpose of the Study:

• To investigate the feasibility of storing personal health data within the Exif area of JPEG files.
• To assess the storage capacity limitations of the Exif area for health data.
• To evaluate the practicality of using JPEG files for consolidating health information from multiple devices.

Main Methods:

• Developed a method to embed health data into the Exif area of JPEG images.
• Utilized the Health Level Seven (HL7) format for structuring health data within the Exif area.
• Quantified the amount of health data storable within the 64 KB Exif capacity limit.

Main Results:

• Successfully stored health data from multiple personal health monitoring devices within JPEG files.
• Demonstrated that over a month of health data can be stored in a single JPEG file.
• Confirmed that exceeding the Exif area capacity can be managed by utilizing multiple JPEG files.

Conclusions:

• Embedding health data into JPEG files offers a viable solution to data format fragmentation.
• The proposed method simplifies the handling of personal health data across various devices.
• This approach enhances accessibility and usability of personal health information for individuals.