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现在,我们面临的将是一个分布的计算环境,视听信息在分布环境中创建、交换、检索和重用。因此,需要开发一种视听信息的“表示(Representation)形式”,它超越基于波形或基于样本、基于压缩(如MPEG-1和MPEG-2)甚至是基于对象(如MPEG-4)的表示,这就需要“表示形式”允许某种程度的对信息含义的注
Now we are facing a distributed computing environment where audiovisual information is created, exchanged, retrieved and reused in a distributed environment. Therefore, there is a need to develop a “Representation” form of audiovisual information that goes beyond waveform- or sample-based, compression-based (such as MPEG-1 and MPEG-2) or even object- This requires a “form of representation” that allows some degree of note about the meaning of the message