Was Jarek Duda employed by Google when he invented this? Or ever? Google is claiming they deserve a patent because applying the technique to video constitutes a

Was Jarek Duda employed by Google when he invented this? Or ever? Google is claiming they deserve a patent because applying the technique to video constitutes an inventive step (the EU patent office disagreed), and that the original idea is too abstract to patent. They are not claiming they own the idea because they employed Duda - at least, I couldn't find such a claim.