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While it was true that each picture element was polled and sent only 29.97 times per second, the pixel location immediately below that one was polled 1/60 of a second later, part of a completely separate image for the next 1/60-second frame. At its native 24 FPS rate, film could not be displayed on 60 Hz video without the necessary pulldown ...
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.
Muybridge's photographic sequence of a race horse galloping, first published in 1878. High-speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 69 frames per second or greater, and of at least three consecutive ...
Only films with a native (without motion interpolation) shooting and projection frame rate of 48 or higher, for all or some of its scenes, are included, as are films that received an official post-conversion using technologies such as TrueCut Motion. This is at least double the 24 frames per second (fps) standard used in Hollywood. [1]
[1] 24 fps was chosen because it was the minimum frame rate that would produce adequate sound quality. This was done because film was expensive, and using the lowest possible frame rate would use the least amount of film. [2] A few film formats have experimented with frame rates higher than the 24 fps standard.
The two sets of 25 fields work together to create a full frame every 1/25 of a second (or 25 frames per second), but with interlacing create a new half frame every 1/50 of a second (or 50 fields per second). [3] To display interlaced video on progressive scan displays, playback applies deinterlacing to the video signal (which adds input lag).
A frame or field rate can also be specified without a resolution. For example, 24p means 24 progressive scan frames per second and 50i means 25 progressive frames per second, consisting of 50 interlaced fields per second. Most HDTV systems support some standard resolutions and frame or field rates. The most common are noted below.
This is because the "30 frame/s" frame rate of NTSC is actually 30/100.1%, also referred to as 29.97 frame/s – this frame rate is matched when video at 23.976 frame/s has a 3:2 pulldown applied. Similarly, 60i is shorthand for 60/100.1% fields per second. Some NLE programs may refer to 23.976 as 23.98, causing a small amount of confusion.