资料来源 : Free On-Line Dictionary of Computing
MPEG-1
The first
{MPEG} format for compressed {video}, optimised for {CD-ROM}.
MPEG-1 was designed for the transmission rates of about 1.5
{Mbps} achievable with {Video-CD} and {CD-i}.
It uses {discrete cosine transform} (DCT) and {Huffman coding}
to remove spatially redundant data within a frame and
block-based {motion compensated prediction} (MCP) to remove
data which is temporally redundant between frames. Audio is
compressed using {subband encoding}. These {algorithms} allow
better than VHS quality video and almost CD quality audio to
be compressed onto and streamed off a {single speed} (1x)
{CD-ROM} drive.
MPEG encoding can introduce blockiness, colour bleed and
shimmering effects on video and lack of detail and
quantisation effects on audio.
The official name of MPEG-1 is {International Standard}
{IS-11172}.
(1999-01-06)