A "ghost image" is a generic term for a faint, often unintentional, secondary image that appears near a primary one. Its meaning varies significantly depending on the context—ranging from dental X-ray artifacts to monitor defects and computing backups. 1. Radiology (Dental/Panoramic X-rays)
A second, weaker image caused by internal reflections in camera lenses or optical components.
"Ghosting" occurs when a faint residual image remains from a previously displayed image. This can be caused by a mismatch between the monitor's refresh rate and the video signal.
