基础资料
数字视频格式
视频显示基本数字化，由此形成各种数字视频的格式：
| 格式 | HxV像素 | 长宽比 |
| QQCIF | 88X72p | 11:9 |
| SubQCIF | 128X96p | 4:3 |
| QQVGA | 160X120p | 4:3 |
| QCIF | 176X144p | 11:9 |
| QVGA | 320X240p | 4:3 |
| CIF | 352X288p | 11:9 |
| VGA | 640X480p | 4:3 |
| 4CIF | 704X576p | 11:9 |
| D1 | 720x480i | 3:2 |
| D2 | 720x480p | 3:2 |
| SVGA | 800X600p | 4:3 |
| XGA | 1024X768p | 4:3 |
| D4 | 1280x720p | 16:9 |
| WXGA | 1280X800p | 8:5 |
| UVGA | 1280X960p | 4:3 |
| SXGA | 1280X1024p | 5:4 |
| SXGA+ | 1400X1050p | 4:3 |
| UXGA | 1600X1200p | 4:3 |
| D3 | 1920x1080i | 16:9 |
| HDTV(D5) | 1920X1080p | 16:9 |
| QXGA | 2048X1536p | 4:3 |