MPEG的完整形式是什么？

MPEG：运动图像专家组 (MPEG: Moving Picture Experts Group)

MPEG is an abbreviation of Moving Picture Experts Group. It is a working group of authorities that is founded to establish standards for audio and video compression and transmission. The audio-video file formats are built up by MPEG, which are also known as MPEG files. This group of experts is created by the International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC). It has delivered a variety of versions of the file (standards) namely MPEG-1, MPEG-2, MPEG-3, MPEG-4, MPEG-7, MPEG-21, etc.

MPEG是“运动图像专家组”的缩写 。它是权威机构的工作组，旨在建立音频和视频压缩和传输的标准。音频视频文件格式是由MPEG建立的，也称为MPEG文件 。该专家组是由国际标准化组织(ISO)和国际电工委员会(IEC)创建的。它提供了多种版本的文件(标准)，即MPEG-1，MPEG-2，MPEG-3，MPEG-4，MPEG-7，MPEG-21等。

Image source: https://commons.wikimedia.org/wiki/File:Mpeg_logo.svg

图片来源：https://commons.wikimedia.org/wiki/File:Mpeg_logo.svg

The standard of MPEG is an order of arrangement for compressed audio and video files. It is developed and designed for storing video on Digital Audio Tapes (DAT) and audio files on standard audio Compact Disc (CD). The MPEG file has ".mpeg" as a file extension. In the earlier period, the MPEG files requisites hardware decoder for storing and playback but in the present day, it needs software-only codecs.

MPEG的标准是压缩音频和视频文件的排列顺序。它是为将视频存储在数字音频磁带(DAT)上以及将音频文件存储在标准音频光盘(CD)上而开发和设计的。 MPEG文件具有“ .mpeg”作为文件扩展名。在早期，MPEG文件需要用于存储和回放的硬件解码器，但是在今天，它需要纯软件编解码器。

In January 1988, MPEG was founded by the proposal and assistance of Leonardo Chiariglione and Hiroshi Yasuda.
1988年1月，在Leonardo Chiariglione和Yasuda Hiroshi的提议和帮助下成立了MPEG。
In May 1988, its first meeting was held in Ottawa, Canada.
1988年5月，其第一次会议在加拿大渥太华举行。
Since, 1988, it has created a variety of standards that facilitated industry in providing users more pleasing and enjoyable digital media experience.
自1988年以来，它创建了各种标准，促进了行业向用户提供更令人愉悦和愉悦的数字媒体体验。
More than the years, since its beginning of foundation, it has grown and developed into a full-fledged huge ISO working group.
自成立以来，多年来，它已经成长为一个功能强大的大型ISO工作组。

MPEG的工作 (Working of MPEG)

The data is compressed by the MPEG algorithm to small bits.
数据通过MPEG算法压缩为小比特。
These small bits can be effortlessly transmitted and decompressed and then the video is encoded through a method called Discrete Cosine Transform (DCT).
可以毫不费力地传输和解压缩这些小比特，然后通过称为离散余弦变换(DCT)的方法对视频进行编码。
The rate of compression is extremely soaring of MPEG as it stores only the changes that take place from one frame to another frame.
MPEG的压缩率非常高，因为它仅存储从一帧到另一帧发生的变化。
MPEG does not store the entire frame that enables it to trim down the size of the complete file.
MPEG不会存储整个帧，因此无法缩小整个文件的大小。

Following are the steps followed by MPEG commonly to develop, grow and establish a standard:

MPEG通常遵循以下步骤来开发，发展和建立标准：