Translation Ukrainian

[eumagga0x2a]

Finding a replacement for Bob is difficult.  It is possible descriptively. Artifact of wobbling = Aртефакт коливання або
Ефект коливання

If even the French don't translate "Bob" or "Bobbing" as deinterlacing method, the best course of action would be IMHO to leave this term untranslated. If it helps, another term for "Bobbing" is "line averaging" that really describes the method rather than its undesired side effect.