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Frame rate, most commonly expressed in frames per second or FPS, is typically the frequency (rate) at which consecutive images are captured or displayed. This definition applies to film and video cameras , computer animation , and motion capture systems.
Television typically originates at 50 or 60 frames or interlaced fields per second. The flicker fusion threshold does not prevent indirect detection of a high frame rate, such as the phantom array effect or wagon-wheel effect, as human-visible side effects of a finite frame rate were still seen on an experimental 480 Hz display. [6]
In motion picture technology—either film or video—high frame rate (HFR) refers to higher frame rates than typical prior practice.. The frame rate for motion picture film cameras was typically 24 frames per second (fps) with multiple flashes on each frame during projection to prevent flicker.
The amount of frames rendered per second (on average) is called the frame rate. Using common a 60 Hz monitor as an example, the maximum theoretical frame rate is 60 FPS (frames per second), which means the minimum theoretical input lag for the overall system is approximately 16.67 ms (1 frame/60 FPS).
A high-speed camera is a device capable of capturing moving images with exposures of less than 1 / 1 000 second or frame rates in excess of 250 frames per second. [1] It is used for recording fast-moving objects as photographic images onto a storage medium. After recording, the images stored on the medium can be played back in slow motion.
Some 24p productions, especially those made only for NTSC TV and video distribution (e.g., in Canada or the USA), actually have a frame rate of 24000 ÷ 1001, or 23. 976023 frames per second. Many use the term "24p" as a shorthand for this frame rate, since "23.976" does not roll off the tongue as easily.
In the early 20th century when 35mm movie film was developed, producers found that 18–24 frames per second was adequate for portraying motion in a movie theater environment. Flicker was still a problem at these rates, but projectors solved this by projecting each frame twice, thus creating a refresh rate of 36–48 Hz without using excessive ...
The test subjects' brainwave activity peaked around 60 fps, and they decided to go with that as the norm. [2] Trumbull theorized that although viewers see smooth motion from film displayed at 24 frames per second, the standard for decades, they are subconsciously aware of the flicker, which reduces the film's emotional impact.