Content-based video coding (MPEG-4)

Content-based video coding (MPEG-4)

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MPEG-4 is another ISO/IEC standard, developed by MPEG (Moving Picture Experts Group), the committee that also developed the Emmy Award winning standards of MPEG-1 and MPEG-2. While MPEG-1 and MPEG-2 video aimed at devising coding tools for CD-ROM and digital television respectively, MPEG-4 video aims at providing tools and algorithms for efficient storage, transmission and manipulation of video data in multimedia environments. The main motivations behind such a task are the proven success of digital video in three fields of digital television, interactive graphics applications (synthetic image content) and the interactive multimedia (worldwide web, distribution and access to image content). The MPEG-4 group believe these can be achieved by emphasising the functionalities of the proposed codec, which include efficient compression, object scalability, spatial and temporal scalability, error resilience etc.

Inspec keywords: IEC standards; ISO standards; video coding; telecommunication network reliability

Other keywords: MPEG-4 video; interactive graphic application; scalability; image compression; content-based video coding; ISO-IEC standard; error resilience; moving picture experts group; digital television; multimedia environment; CD-ROM; MPEG-2 video; standard codec; MPEG-1 video

Subjects: Image and video coding

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