Progressive scan is a display and video system where each frame is drawn sequentially, line by line, rather than using the interlaced method that alternates odd and even lines. This non-interlaced refresh reduces flicker, improves image stability, and delivers smoother motion, especially on CRT monitors and digital displays.
In photography and videography, progressive scan is essential for viewing or recording fast-moving subjects, as it produces clearer, sharper images without the motion artifacts often associated with interlaced video. It is widely used in modern monitors, cameras, and digital imaging systems for high-quality visual output.