A spout identification module (22) is adapted to identify a spout (89) (e.g., or an associated spout position) of the harvesting vehicle (91, 191) in the collected image data. A relative motion detector (96) detects the relative motion of a receiving vehicle (79) and the harvesting vehicle (91, 191) or detects the relative motion between the spout and a container (85) of the receiving vehicle. An alignment module (24) is adapted to determine the relative position of the spout (89) and the cells in the container (85) via processing of the image data such that the spout (89) is aligned with the longitudinal axis or a lateral offset from the longitudinal axis based on the detected relative motion and where a longitudinal size of the deadband volume is adjusted based on the relative motion.