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国际标准化组织(ISO)和国际电工委员会(IEC)的联合技术委员会于1988年4月成立活动图像专家组(MPEG)之后,曾制定出 MPEG1、MPEG2、MPEG3、MPEG4标准的开发规划和阶段目标。现在,MPEG-1、MPEG-2早已推出并已得到广泛应用;而用于对高清晰度电视信号进行压缩编码的 MPEG-3标准,由于其计划和内容与 MPEG-2相似,故于1992年11月取消了单独制定这一标准的计划,而与 MPEG-2合并。
After the Joint Technical Committee of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) established the Moving Picture Experts Group (MPEG) in April 1988, it has formulated the development plans and phase objectives of the MPEG1, MPEG2, MPEG3 and MPEG4 standards. Now that MPEG-1 and MPEG-2 have been introduced and are widely used, the MPEG-3 standard for compressing and encoding high-definition television signals is similar in plan and content to MPEG-2 in 1992 In November, a separate plan to develop this standard was abolished and merged with MPEG-2.