多媒体算法介绍（国外英文资料）.docVIP

多媒体算法介绍（国外英文资料） A simple introduction to the common video audio encoding is not discussed in detail. Because of my limited knowledge, there are some mistakes. The MPEG series MPEG (namely Moving Pictures Experts Group) Moving Pictures expert Group, belongs to the ISO (International Organization for Standardization) is the International standard Organization, they developed a series of video audio coding, the most familiar is the MP3, MPEG - 1/2/4. mpeg-1 Earlier Video coding, the quality is poorer, mainly for the cd-rom Video storage, the most familiar is the VCD Video (CD), his mpeg-1 Video coding is adopted. mpeg-2 In MPEG 1 on the basis of the development of a kind of Video coding, it is far better than the quality of mpeg-1, so is used in the DVD - the Video above, mpeg-2 is the only designated Video DVD - Video coding. The mpeg-2 is not only used on DVD - Video, but now most HDTV (HDTV) is also mpeg-2, with a resolution of 1920x1080. Because of the popularity of mpeg-2, the mpeg-3, originally intended for HDTV, finally gave up. mpeg-4 The traditional mpeg-1/2 has been unable to adapt to the environment such as network transmission, so the mpeg-4 was created. Mpeg-4 adopts a series of new technologies to meet the requirements of transmitting higher video quality over low bandwidth. DivX, XviD, MPEG4 are all adopted mpeg-4 video encoding, except for the application on DVDRip, 3GPP now accepts mpeg-4 as the video coding scheme. Mpeg-4 AVC It and mpeg-4 are two different kinds of coding, mainly in the very low code rate that mpeg-4 does not perform well, while AVC is more suitable for low bandwidth transmission. The AVC is also better than mpeg-4 at high code rates, so there is a lot to replace mpeg-4. The next generation HD DVD and Blue Ray Disc have officially embraced AVC as one of the video coding schemes, and believe that the future of the AVC will be very good. The MPEG Audio Layer 1/2 MP1, MP2, earlier audio coding, the predecessor of MP3, used primarily for