Detection of Characters on a Mineral Water Bottle Cap
Experimental Requirements
- Detect characters on the product, ensuring they are clearly visible.
- Preferably use a ring light source for detection.
- Utilize static imaging.
Unlit Product Appearance
Due to the reflective nature of the characters on the cap, a ring shadowless light source was used. The ring shadowless light source creates an even distribution of light across the central area, allowing the light source to focus on the characters, making them clearly visible.
Lighting Effect After Illumination
Analysis and Conclusion
- Lighting for Character Detection: Should not produce reflections.
- Static Imaging: This setup involves static photography.
- Prefer Ring Light Sources: For optimal results in character detection, use a ring light source.
General Light Source Selection Process
- Understand Project Requirements: Identify what needs to be detected or measured.
- Analyze the Target and Background: Determine the optical phenomenon with the greatest contrast between the target and background.
- Determine Light Source Type and Color: Based on the relationship between the light source and the target, determine the type and color of the light source.
- Test with Actual Light Sources: Conduct tests to determine the ideal lighting method.
- Adapt to Site Conditions: Ensure the setup aligns with real-world conditions of the client's product.
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