Best practices for using the application

rPPG - By Face

 

In order to get accurate vital-sign readings, follow the below instructions:

• Device:
• The mobile device should be in a fixed position during the entire test.
• The device should be placed within arm’s length of the subject (40-50cm away).
• The device battery level should not drop below 50%.
• Do not use the SDK when the phone is in power-save mode.

• Subject:
• Each measurement set is for a single person.
• The subject must be sitting or standing still during the measurement.
• The subject should have a fully exposed face.

• Environmental conditions:
• The surroundings must be lit.
• No light source behind the subject's face.
• No direct sunlight.
• No lighting changes during the test.
• No flickering lights reflecting on the face.

• Measurement:
• Duration – The full test period is up to 3 minutes, 65 seconds if you don't get any warning or errors.
• Vital signs appearance - each vital sign appears when there is sufficient data. However, there may be cases in which a summary value is not available for some vital signs, see the Partial Summary Report section below.

 

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PPG - By Finger

How to use with iPhone 11 Pro?

When using the By Finger (PPG) mode, the following recommendations apply

• Device:
• The mobile device should be in a fixed position during the entire testing period.
• The device should be held by hand.
• The device’s battery level should not drop below 50%.
• Do not use the SDK when the phone is in power-save mode.

• Subject:
• The subject must be at rest during the measurement.
• The hand should rest comfortably at heart level.
• iOS - Use the index finger to fully cover both the rear flashlight and the relevant rear camera.
• Android - Use the index finger to fully cover the relevant rear camera, without covering the rear flashlight.
• When placing the finger on the camera, apply moderate pressure.
• Avoid movement of the finger during the test.

• Environmental conditions:
• Should not be in complete darkness.

• Measurement:
• Duration - The recommended duration for the finger test is 1.5 minutes (90 seconds).