| 摘要 |
<p>A method comprising breaking an image down into subbands (1), performing a pre-analysis of the image in image blocks (2), recursively and adaptively assigning the available bit-rate to each pixel in the broken down image, selecting a quantizer (4) determined by the source probability density and a calculation of the minimum quantizing error variance, and coding each pixel of each signal component in every subband according to the selected quantizer. The method is applicable to HDTV digital VCRs.</p> |
