Frames per second refers to what aspect of video production?

Frames per second (FPS) specifically refers to the number of unique images or frames that are displayed in one second of video playback. This is a crucial element in video production as it directly influences the fluidity and smoothness of the video. Higher FPS values typically result in smoother motion and more visually appealing video output, which is especially important in high-action or fast-moving scenes.

The clarity of the image is determined by other factors such as resolution and compression, rather than the frame rate. The speed of the footage might imply how fast it plays back, which can be affected by FPS, but it doesn't define what FPS is. Lastly, the total duration of the video is measured in minutes or seconds, which is unrelated to the number of frames produced. Therefore, the essence of FPS is captured in the accurate description of the number of unique images produced per second.