What is used to control flicker in fluoroscopic imaging systems?

In fluoroscopic imaging systems, interlaced scanning is utilized to control flicker by alternating the scanning of odd and even lines, which helps to create a smoother visual experience for the viewer. This technique reduces the perception of flickering light that can occur when images are displayed at lower frame rates. By interlacing the scan lines, more information is presented to the eye in a rapid succession, which aids in merging the frames effectively, thus minimizing flicker and enhancing the continuity of the image.

The choice of interlaced scanning is particularly important in dynamic imaging such as fluoroscopy, where a constant flow of images is necessary for accurate real-time monitoring of moving structures. This method enhances the quality of the visual output and ensures that the images are more stable and comfortable for the observer to view over extended periods.

In contrast, the other options like field scanning, frame averaging, and digital filters address different aspects of image processing and enhancement but do not specifically target the control of flicker in the same manner as interlaced scanning does.