TAILIEUCHUNG - Image and Videl Comoression P15

This chapter is an extension of the previous chapter. We introduce several important application issues of MPEG-1/2 video which include the ATSC (Advanced Television Standard Committee) DTV standard which has been adopted by the FCC (Federal Communications Commission) as the TV standard in the United States, transcoding, down-conversion decoder, and error concealment. INTRODUCTION Digital video signal processing is an area of science and engineering that has developed rapidly over the past decade. The maturity of the moving picture expert group (MPEG) video-coding standard is a very important achievement for the video industry and provides strong support for digital transmission and storage. | 17 Application Issues of MPEG-1 2 Video Coding This chapter is an extension of the previous chapter. We introduce several important application issues of MPEG-1 2 video which include the ATSC Advanced Television Standard Committee DTV standard which has been adopted by the FCC Federal Communications Commission as the TV standard in the United States transcoding down-conversion decoder and error concealment. INTRODUCTION Digital video signal processing is an area of science and engineering that has developed rapidly over the past decade. The maturity of the moving picture expert group MPEG video-coding standard is a very important achievement for the video industry and provides strong support for digital transmission and storage of video signals. The MPEG coding standard is now being deployed for a variety of applications which include high-definition television HDTV teleconferencing direct broadcasting by satellite DBS interactive multimedia terminals and digital video disk DVD . The common feature of these applications is that the different source information such as video audio and data are all converted to the digital format and then mixed together to a new format which is referred to as the bitstream. This new format of information is a revolutionary change in the multimedia industry since the digitized information format . the bitstream can be decoded not only by traditional consumer electronic products such as television but also by the digital computer. In this chapter we will present several application examples of MPEG-1 2 video standards which include the ATSC DTV standard transcoding down-conversion decoder and error concealment. The DTV standard is the application extension of the MPEG video standard. The transcoding and down-conversion decoders are the practical application issues which increase the features of compression-related products. The error concealment algorithms provide the tool for transmitting the compressed bitstream over noisy .

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