4491777b1aa8b5b32c2e8666dbe1a495-AuthorFeedback.pdf

Weagree, thequalitativeperformance3 of Wavelet Flow (WF) appears to be somewhat worse than the Glow baseline but is still competitive in terms of4 bits-per-dimension. SR is not claimed as our primary goal/contribution.16 Rather, it is a fortuitous byproduct of the conditional structure that WF enables. We included the SR results as a17 demonstration ofthiscapability. We note that a comparison against a conditional structurep(Ii|Ii 1) is difficult because existing SR approaches of19 this form generate samplesIi from thefullspaceRN N C,including regions ofspace which areinconsistent with20 the lower resolution imageIi 1. We recognise that our comparison of training time is imperfect.