| 摘要 |
<p>The present invention relates to a method of reconstructing a video or audio signal or a signal corresponding to at least one physical quantity, said signal being coded by M sub-bands, M being a nonzero integer, in which the resolution, in particular spatial or temporal, of the signal is modified by a factor P/M, P being an integer, comprising the steps consisting in: for Q sub-bands, l=Q=M: over-sampling each sub-band by a factor P, filtering each sub-band thus over-sampled by at least one synthesis filter (g<SUB>k</SUB>), whose original impulse response (g<SUB>k</SUB>) that ensures perfect reconstruction of the signal has been over-sampled by a factor P, filtered and under-sampled by a factor M.</p> |
