aspect ratio


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aspect ratio

[′a‚spekt ‚rā·shō]
(aerospace engineering)
The ratio of the square of the span of an airfoil to the total airfoil area, or the ratio of its span to its mean chord.
(design engineering)
The ratio of frame width to frame height in television; it is 4:3 in the United States and Britain.
In any rectangular configuration (such as the cross section of a rectangular duct), the ratio of the longer dimension to the shorter.
(mechanical engineering)
In an automotive vehicle, the ratio of the height of a tire to its width. Also known as tire profile.
(nucleonics)
The ratio of the plasma diameter of a toroidal controlled fusion device to the major diameter of the torus.

Aspect ratio

In any rectangular configuration, the ratio between the longer dimension and the shorter dimension.

aspect ratio

1. In any rectangular configuration (such as the cross section of a rectangular duct), the ratio of the longer dimension to the shorter.
2. In a rectangular configuration, the ratio of the long-side to the short-side.

aspect ratio

aspect ratioclick for a larger image
The ratio of span of the wing to its chord. It also may be expressed as the ratio of the square of the span of the wing to its area. Aspect ratio (A) = span2/wing area, span/chord, span × chord/chord2, or wing area/chord2.

aspect ratio

(graphics)
The ratio of width to height of a pixel, image, or display screen. Square pixels (1:1) are considered preferable but displays are usually about 5:4.

aspect ratio

The aspect ratio states the comparison of width to height and is commonly used to describe the shape of a TV or computer screen. For example, the aspect ratio of an earlier standard-definition (SD) screen was 4:3, which is a relatively square rectangle. The 4:3 means "4 to 3," or four units wide to three units high. Today's TVs and monitors typically have a 16:9 ratio, which is a wide rectangle that is still not as wide as most movie theater (cinema) screens.

Another way of expressing the 4:3 and 16:9 ratios is 1.33:1 and 1.78:1; however, these latter designations are used mostly for cinema formats, rather than TV (see illustration below). See letterbox, screen resolution, HDTV display modes and anamorphic DVD.


The 2.39:1 Is Also 2.4:1
The anamorphic scope aspect ratio of 2.39:1 is commonly rounded up to 2.4:1.







Cinemascope on an iPhone
Moment created an anamorphic lens for an iPhone with a 2.4:1 aspect ratio in order to simulate a Cinemascope video on a smartphone. (Image courtesy of Moment, Inc., www.shopmoment.com)







The Letterbox Effect
Displaying a wide screen 16:9 image (right) on a standard-definition 4:3 TV (left) creates black bars on the top and bottom. Movies that retain their original, extra-wide cinema formats will create a letterbox even on today's wide screen TVs. (Image courtesy of Intergraph Computer Systems.)
References in periodicals archive ?
Measurements Mongolian male Mongolian female fML 88.20[+ or -]4.57 77.92[+ or -]2.97 fLAP 68.82[+ or -]4.22 61.31[+ or -]1.92 fMAP 69.81[+ or -]3.53 62.13[+ or -]1.63 Aspect ratio 1.28[+ or -]0.04 1.27[+ or -]0.04 (fML/fAP) Measurements Chinese male Chinese female fML 84.57[+ or -]4.70 76.52[+ or -]3.56 fLAP 65.75[+ or -]2.70 60.53[+ or -]3.81 fMAP 67.10[+ or -]3.67 62.12[+ or -]3.55 Aspect ratio 1.29[+ or -]0.03 1.27[+ or -]0.05 (fML/fAP) Table II.
Moreover, the model predicts that the increase of the nanofibers aspect ratio reduces the trace of conformation tensor.
However, as the finish line continues to move and the industry is faced with ever-smaller devices, aspect ratio measurements appear to be increasingly important.
When the bubble is close to the contractive channel, due to the effect of the wall, the shape of the bubbles will be more flat; that is, the aspect ratio becomes greater.
Acoustic Emission Properties of Rocks with Different Aspect Ratios. Figures 7 and 8 show AE characteristic curves and time-series curves of numerical specimens of rocks with different aspect ratios, respectively.
It is seen from the Figure 5 that the percentage reduction in drift in x and y directions for all aspect ratio, models with outrigger located at half of the height of the structure give higher values in comparison with models with outriggers at other locations.
Estimations of effective aspect ratio are possible with the aid of model predictions.
It must be note that, in order to obtained reliable analyses result aspect ratio of the element must be small enough.
It was found that C1-C4 pair have the most insignificant difference in term of mean seed length, rectangular aspect ratio, major axis length and aspect ratio.
"With iResizer you can finally stop worrying about an aspect ratio, and start enjoying the process!"
Martinovic cites the Hollywood films of the 1970s as an influence of the look of "House of Cards." Of the wider aspect ratio, which means "House of Cards" is letterboxed on most TVs, he says: "It probably wouldn't happen if we didn't shoot for Netflix.