Precision manipulation and delicate targets
Precision grasping is one of the clearest use cases for closed-loop vision control. As a gripper approaches an object, small errors in the initial pose estimate, or slight shifts in the object itself, can be corrected continuously right up until contact, rather than being locked in by a single early snapshot. Fruit picking pushes this further: fruit is irregularly shaped, partially occluded by leaves, and often moving slightly in the wind, so a controller that keeps re-checking the camera as the arm closes in tends to succeed far more often than one committed to a single planned approach.
Surgical robotics relies on the same principle at a much finer scale. A surgical instrument guided by continuous visual feedback can track and compensate for the small, constant motion of tissue, rather than aiming once at a target that may have already shifted by the time the instrument arrives. PCB and electronics assembly is a related but different flavor of the same idea, using tight visual feedback to align components against fine pitch connectors where the margin for error is a fraction of a millimeter.