The aspect ratio of an image is the ratio of the width of the image to its height, expressed as two numbers separated by a colon. That is, for an x: y aspect ratio, no matter how big ...

This HDTV World feature visually explains common aspect-ratio problems for 4:3 and 16:9 displays--and how to fix them.

Pixel aspect ratio (often abbreviated PAR) is a mathematical ratio that describes how the width of pixels in a digital image compares to their height. ...

The aspect ratio of a shape is the ratio of its longer dimension to its shorter dimension. It may be applied to two characteristic dimensions of a three-dimensional shape, such as the ...

ACADEMY FRAME . In 1889 Thomas Edison developed an early type of projector called a Kinetograph, which used 35mm film with four perforations on each side.

Whatever the true story may be, Edison's 4:3 aspect. ratio was officially adopted in 1917 by the Society Of ... industry with the 4:3 aspect ratio, the television industry ...

All About Aspect Ratios (And Why Widescreen Really Is Better) back to The Ultimate Guide to Anamorphic Widescreen DVD: I'm sure by now, most of you know ...

Each MPEG-2 Video stream has a DAR (Display Aspect Ratio) flag. The flag tells the player for what kind of target display the stream has been encoded. ...

n. The width-to-height ratio of a film or television image. The span-to-mean-chord ratio of an airfoil.