This is also of high interest to motorcyclists who even have a name for the phenomena: SMIDSY (Sorry, Mate I Didn't See You).
OP was focused on the A pillar and some other effects, while this excellent video goes a little further into some perception psychology about camouflage and how we perceive moving objects across backgrounds. You can ignore the motorcycle stuff but the explanation is enlightening. https://www.youtube.com/watch?v=eqQBubilSXU
OP was focused on the A pillar and some other effects, while this excellent video goes a little further into some perception psychology about camouflage and how we perceive moving objects across backgrounds. You can ignore the motorcycle stuff but the explanation is enlightening. https://www.youtube.com/watch?v=eqQBubilSXU