A system and method for inventory assessment include the capability to generate an enumeration query, transmit the enumeration query, and monitor messages associated with the enumeration query, wherein at least one of the messages may include data regarding an inventory object beyond the broadcast range of the transmission. An efficient and accurate method for editing or generating the calibration target curve is also provided. Computational complexity of certain coding and decoding operations may be reduced by two orders of magnitude or more for a given signal vector input. Multiple image tiles for the same region of interest may be available. The dispensing machine further includes a temperature selection panel, a flow rate selection panel, and a pattern selection panel.