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JPL's Wireless Communication Reference WebsiteChapter: Capita Selecta
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MPEG 4 intends to use bitrates of up to 64 kbit/s at good quality, so new coding techniques allowing higher compression than traditional (Discrete Cosine Transform) techniques may be necessary. MPEG 4 most likely will apply fundamentally new algorithms for compression, including model-based image coding, human interaction with multimedia environments, and low bitrate speech coding. MPEG 4 research investigate among other things morphology, fractals and model based compression.
MPEG-4 will support new applications, including interactive mobile multimedia communications, videophone, mobile audio-visual communication, multimedia electronic mail, remote sensing, electronic newspapers, interactive multimedia databases, multimedia videotex, games, interactive computer imagery.
MPEG 4 aims at applications using sampling dimensions up to 176 x 144 x 10 Hz and coded bit rates between 4800 and 64,000 bits/sec.
