What is resolution of D1/ CIF / QCIF?

最新推荐文章于 2022-05-01 00:59:49 发布

翻译最新推荐文章于 2022-05-01 00:59:49 发布 · 723 阅读

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本文详细介绍了电视规格中常见的视频分辨率标准，包括全分辨率D1、4CIF、2CIF、DCIF、CIF及QCIF等，解释了它们各自的意义、适用场景以及与全分辨率之间的关系。

What is resolution of D1/ CIF / QCIF?

D1

So-called "full resolution" for TV specs. Normally D1 can mean one of the following video resolutions:
* 704x576 (TV PAL)
* 704x480 (TV NTSC)
* 720x576 (DVD-Video PAL)
* 720x480 (DVD-Video NTSC)

4CIF (4 Common Intermediate Format)

* 704x576 in PAL
* 704x480 in NTSC

2CIF (2 Common Intermediate Format)

* 704x288 in PAL
* 704x240 in NTSC

DCIF (Double Common Intermediate Format)

Compared DCIF with CIF and 2CIF: under the same bit rate, the image quality and definition is greatly improved.

* 528x384 in PAL
* 528x320 in NTSC

CIF (Common Intermediate Format)

Back in history, this acronym's name comes from video conferencing tools in late 1980's and early 1990's. Nowadays the term CIF is used to mean specific video resolution:
* 352x288 in PAL
* 352x240 in NTSC
CIF is 1/4th of "full resolution" TV, also called as D1 and is best-known because VideoCD standard uses this resolution.

QCIF (Quarter Common Intermediate Format)

Old video resolution name. 1/4 of CIF video resolution. Standard sizes :
* 176x144 in PAL
* 176x120 in NTSC