| 摘要 |
<p>A video signal is compressed by alternately removing predetermined arrangements of pixels, e.g. odd and even lines. In the case of an interlaced video signal, this may comprise removing the even fields of odd frames and odd fields of even frames. Two such compressed signals may be combined and transmitted in a channel having a bandwidth sufficient for one uncompressed signal only. In the case of non-interlaced video signals, odd and even lines, for example, may be removed from alternate frames. The removed lines can be replaced with odd and even lines taken from another video signal to produce a compressed video signal in which the lines are alternately from first and second uncompressed video signals.</p> |
