Frames Per Second (FPS)

Frames per second (fps) is a measure of how many still images, or frames, are displayed in one second of a video or animation. The higher the frame rate, the smoother and more realistic the motion appears to the viewer. Generally speaking, frame rates of 30 fps or higher are considered smooth, while frame rates below 30 fps may appear choppy or shaky.

The standard frame rate for movies and TV shows is 24 frames per second (fps), which is the minimum frame rate required to produce a smoothness that most viewers can tolerate. This is because the human eye can analyze 24 different images in one second, which is enough to give the appearance of continuous motion. Some movies and TV shows may use higher frame rates, such as 48 or 60 fps, to achieve smoother motion or to more accurately record fast-moving actions.

Video games typically have higher frame rates than movies and television, ranging from 30 frames per second to over 100 frames per second. This is because video games use more processing power than movies or television shows and often have more complex visual effects. Fast-paced action games can benefit greatly from smoother gameplay and more detailed graphics, which can be achieved with higher frame rates.

What affects frame rate?

Frame rate can be affected by a number of factors, including the capabilities of the device or computer used to display the video, the complexity of the graphics being displayed, and the available bandwidth for streaming video. For example, a video game may run smoothly on a high-end gaming computer, but may experience frame rate issues on a lower-end device. Similarly, streaming video may experience frame rate issues if the available bandwidth is insufficient to support the frame rate of the video.

In summary, the number of still images displayed in one second of a video or animation is called the "frames per second," and it plays an important role in defining the realism and smoothness of the motion being exhibited. Higher frame rates generally produce smoother, more detailed images, but they may also use more bandwidth and processing power.

References

【1】https://encord.com/glossary/frames-per-second-fps-definition/