Patent ID: 11967046
Assignee: nan
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The method of claim 1, further comprising:
performing a downward pass that operates on the plurality of levels of the pyramid data structure on a sequential resolution-by-resolution basis from higher to lower resolution to downsample at each level to generate a lower resolution downsampled instance for that level where a highest level instance is the identified parametric database itself and a lowest level downsampled instance is also called a residue instance and also constitutes the frequency blended representation at the lowest pyramid level;
performing an upward pass in a sequential resolution-by-resolution basis from lower to higher resolution and starting at a next-to-lowest resolution level, to upsample a next lower resolution downsampled instance at each level to generate an upsampled representation for that level, and subtracting the upsampled representation from the downsampled instance to generate the frequency isolation representation for that pyramid level; and
performing an upward pass that operates on a plurality of levels of the pyramid data structure on a sequential resolution-by-resolution basis from lower to higher resolution and starting at the next-to-lowest resolution level, and utilizing the frequency blender to produce the frequency blended representation at each resolution level by:
modifying the frequency isolation representation at that pyramid level to generate a modified frequency isolated representation;
performing at least one of: upsampling the frequency blended representation for the next lower resolution pyramid level and modifying the result; to generate a modified blending representation; and
blending the modified frequency isolated representation at that pyramid level with the modified blending representation to generate the frequency blended representation at that pyramid level; and

returning one or more of the frequency blended representations as the enhanced parametric database.