In OCT imaging, what does the color white indicate?

In OCT imaging, what does the color white indicate?

• A. Areas that reflect less light
• B. Areas that reflect no light
• C. Bright gray regions
• D. Areas that reflect more light

Answer: (D)

In OCT images, brightness reflects how much light is backscattered from the tissue at each depth. White marks the strongest backscattering, meaning these areas have high reflectivity. The detector picks up a strong signal from such interfaces, so they appear white on the image. Areas that scatter less light look darker, and anything with essentially no backscattered light would be black. Bright gray is a mid-to-high reflectivity level, not the maximum. So the color white indicates areas that reflect more light.

In OCT images, brightness reflects how much light is backscattered from the tissue at each depth. White marks the strongest backscattering, meaning these areas have high reflectivity. The detector picks up a strong signal from such interfaces, so they appear white on the image. Areas that scatter less light look darker, and anything with essentially no backscattered light would be black. Bright gray is a mid-to-high reflectivity level, not the maximum. So the color white indicates areas that reflect more light.