| | Definition: | | The relationship of width and height. When an image is displayed on different screens, the aspect ratio must be kept the same to avoid "stretching" in either the vertical or horizontal direction. For standard TV or monitor, the aspect ratio is 4: 3 yielding 160X120, 320X240 and 640X480 sizes. The HDTV video format has an aspect ratio of 16 to 9 (16: 9). |
Video Dictionary