i have a rare small part of my state of mind where i can work on designing a robot to find misplaced objects!
 
that's really nice. such a robot would help so much when one dissociates and loses things mindlessly when stressed.
 
i don't expect to make anything but it's so gratifying to consider!
 
so. basically we'd make sure that the robot knew where absolutely everything is at all times, to be the complete opposite of somebody's tendency to lose things. it would be like a rugged safe that stores everything's location.
 
so it would have a lot of ways of finding things, ideally, and would spend its time making sure it constantly knew where eveyrthing was, maybe.
 
but to start off we'd probably inplement object tracking. this is where a time sequence of X,Y coordinates for an object are extracted from video (roughly).
 
this would be a good place to start.