Measurement Frame Guide
The measurement frame mode is used to measure fitting parameters for AMOS frames. This guide provides a detailed explanation of the measurement process and key considerations.
Measurement Process
1. Measurement Preparation
- Ensure the measurement environment has adequate lighting.
- Adjust the measurement frame's tilt angle, frame width, and nose pad width according to the parameters of the AMOS-selected frame.
- Ensure the customer's face is directly facing the camera.
- Check that the camera focus is clear.
2. Photo Capture
The system requires the following photos to be taken:
Frontal Photos (2 Photos)
- First Photo: Used to measure parameters such as pupil distance and pupil height.
- Second Photo: Used to verify the measurement results.
Side Photo (1 Photo)
- Right-side photo: Used to measure parameters such as forward tilt angle and lens-eye distance.
- Ensure the ear root position is clearly visible.
3. Coordinate Calibration
Frontal Photo Calibration
- The system automatically identifies pupil positions.
- Verify the accuracy of the recognition results.
Side Photo Calibration
- Mark the pupil position.
- Mark the ear root position (used to calculate temple length).
4. Parameter Calculation
The system automatically calculates the following parameters: - Pupil Distance (PD) - Near Pupil Distance (30cm) - Pupil Height - Lens-Eye Distance (BVD) - Forward Tilt Angle - Frame Curvature - Face Width - Nose Bridge Width - Temple Length
Notes
- Measurement Environment
- Maintain even lighting in the environment.
- Avoid direct strong light.
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Ensure a simple background.
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Photo Requirements
- Keep the face directly facing the camera.
- Maintain a natural facial expression.
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Ensure the side photo is taken directly facing the camera.
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Coordinate Calibration
- Carefully verify the automatically recognized results.
- Manually adjust coordinates if necessary.
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Ensure the cornea aligns accurately with the inner edge of the marked position.
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Result Validation
- Check if the measurement results are reasonable.
- Re-measure if necessary.
- Save the measurement records.
Common Issues
- Inaccurate Measurement Results
- Check the measurement environment lighting.
- Confirm the shooting angle is correct.
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Verify the accuracy of coordinate calibration.
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Unable to Recognize Pupils
- Adjust lighting conditions.
- Ensure the face is directly facing the camera.
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Check for reflections from the measurement frame.
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Incorrect Temple Length Calculation
- Ensure the ear root position marking is accurate.
- Check the quality of the side photo.
- Verify the measurement frame position is correct.
Measurement Results
After measurement is complete, the system will generate a detailed parameter report, including: - Specific values for all measured parameters - Measurement timestamp - Customer information