鉄腕バーディー // Birdy the Mighty: Decode 2 (2009) │ Birdy VS Nataru [UCG-B HD 1440p] 

AI upscale probably my guess

Its upscaled version, because original is like dvd quality or rip from tv. Im not sure but there is program to upscale manga picture, not sure if there ia for anime - I saw short example. But maybe there is possible to upscale every single frame then repack ot into original framerate video.

yeah I'll probably do an Esmeralda comp next