| 摘要 |
A hierarchical encoding/decoding apparatus corresponds to imaging systems having mutually different resolutions. The apparatus constitutes an entire band width apparatus by using two encoding/decoding devices each for a low band width processing. In the low band width, the apparatus sub-samples a signal only in a vertical direction, while the apparatus sub-samples the signal only in a horizontal direction in a high band width. Accordingly, since sampling numbers are the same each other both in the low and high band widths, a processing amount in the high band width becomes similar to a processing amount in the low band width.
|
