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frame rate
Also known as framerate, frame frequency, FPS, frames per second
measure of frequency of image frames in video
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Frame rate, commonly expressed in frame/s, frames per second, or FPS, is typically the frequency (rate) at which consecutive images (frames) are captured or displayed. This definition applies to film and video cameras, computer animation, and motion capture systems. In these contexts, frame rate may be used interchangeably with frame frequency and refresh rate, which are expressed in hertz (Hz). Additionally, in the context of computer graphics performance, FPS is the rate at which a system, particularly a GPU, is able to generate frames, and refresh rate is the frequency at which a display shows completed frames.
Human vision