Surface Character Detection on Button Batteries
Detection Content: Surface Character Detection on Button Batteries
Light Source Used: Coaxial Light Source
Analysis: Direct illumination with a coaxial light source results in low contrast due to the reflection of direct light from the character portion.
Light Source Used: Ring Light Source
Analysis: Using a ring light source, the specular reflection from the surface of the button battery does not enter the camera, while the intense diffuse reflection from the character portion is captured, resulting in a clearer contrast between the characters and the background.
