| 摘要 |
<p>An image is coded into two video signal intervals, each containing at least one common sub-area (52) of the image (50). Signals representing the common sub-area are recorded at different locations within a plurality of tracks. In case of component colour video signals, luminance and colour difference signals are divided into a plurality of DCT-blocks. Blocks representing common areas of the image are assembled into macro blocks, which in turn are assembled into super macro blocks. Before recording, their positions relative to the image are shuffled. In another embodiment, digital video signals are divided into a plurality of macro blocks, which are assembled into image sub-area groups. These groups are shuffled (5) to form a sequence of track units each containing a plurality of sub-groups of a horizontal division of the image.</p> |
