Provided is an image processing apparatus including a generation unit configured to generate a background model of a multinomial distribution from an acquired image, and generate a background, and a determination unit configured to determine whether a background with high reliability can be generated from the background model generated by the generation unit. The data storage device is formed detached from the collectable object. In this way a carrier resin containing a metal foil, particularly a copper foil, having a thickness, such as 8 \u03bcm or less, can be prepared that is otherwise difficult to prepare using conventional methods. During operation, depending on the necessary rotational speed switching over is performed between a star circuit in which only the first pulse-controlled inverter is operational, and a single phase circuit in which both pulse-controlled inverters are operational. A filter or other device may be provided to remove water from the gas stream before it enters the pyrolysis device. After the canister is sanitized it may be removed from the system and reused.