| 摘要 |
<p>The present invention provides a method of compressing a video signal transmission band and a device therefor which can transmit video without any distortion by selecting only the low frequency components of a video signal with most of the information in a block for digital transmission and extracting DC components from this block thereby performing the compression of the transmission band. The method according to the present invention involves a sub-block determining step for determining a sub-block by separating a low frequency area with respect to horizontal, vertical, and temporal (time) axes, an encoding step for decimating respectively the horizontal and vertical axes to 1/M, generating a band compressing block and finally extracting the DC components, and a decoding step for interpolating the DC components to M times after the encoding step and restoring the block in which the DC components were extracted.</p> |
