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Frame rate, most commonly expressed in frame/s, 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.
In computer graphics, a video card's pixel fillrate refers to the number of pixels that can be rendered on the screen and written to video memory in one second. [1] Pixel fillrates are given in megapixels per second or in gigapixels per second (in the case of newer cards), and are obtained by multiplying the number of render output units (ROPs) by the clock frequency of the graphics processing ...
Actually hand-drawing 24 unique frames per second ("1's") is costly. Even in big budget films, usually hand-drawn animation is done shooting on "2's" (one hand-drawn frame is shown twice, so only 12 unique frames per second) [4] and some animation is even drawn on "4's" (one hand-drawn frame is shown four times, so only six unique frames per ...
The frame rate refers to how often a new field is shown per second. At 50 Hz, 50 fields are shown each second. This results in 25 full frames per second when the odd and even fields are combined. At 60 Hz, 60 fields are shown per second. This results in 30 full frames per second. Interlacing affects how motion is perceived in 1080i.
The HD or 720p resolution of 1280 × 720 pixels stems from high-definition television (HDTV), where it originally used 50 or 60 frames per second. With its 16:9 aspect ratio, it is exactly 2 times the width and 1 + 1 / 2 times the height of 4:3 VGA ( 640 × 480 ), which shares its aspect ratio and 480 line count with NTSC .
There is a large difference in frame rate between film (24.0 frames per second) and NTSC (approximately 29.97 frames per second). Unlike the two other most common video formats , PAL and SECAM , this difference cannot be overcome by a simple speed-up , because the required 25% speed-up would be clearly noticeable.
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When 576i is used to transmit content that was originally composed of 25 full progressive frames per second (576p25 or 576p/25), the odd field of the frame is transmitted first (this is the opposite to 480i). Systems which recover progressive frames or transcode video should ensure that this field order is obeyed, otherwise the recovered frame ...