An HN search of ''Deep Space Nine'' and ''Topaz'' will show some great discussions here covering the dearth of such upscaling solutions, as well as some huge efforts before commonplace AI.
Links to the artciles found in those discussions are to some very enlightening efforts by Joel Hruska to find an upscaling solution related to what the person asked about. As somebody else mentioned, Topaz is out there and Hruska gave it a good shot, but it is not open source.
And that's by avoiding the word "topaz", where I see no story results with discussions and not much of comment results.