A 2-fold downsampler, shown in figures as ↓2, takes an input sequence I and produces a output sequence ↓2(I) where
|
| (37.1) |
2 is referred to as the downsampling factor.
The inverse element 2-fold upsampler, despected in figures as ↑2, for a given input sequence I produces the output ↑2(I) where
