Unsupervised learning of object category from images is carried out by using an automatic image recognition system. Alternatively, the strap-like support component is configured to wrap around a fuel line, fuel pipe, or other conduit. The punch and the die are mounted between a pair of flexible plates. Manually withdrawing the RFID card from the card receptacle causes the retention line to unwind from the spool and transitions the retraction mechanism from the retracted position to an extended position. Examples of objects that may be optically extracted according to the invention include spots of biomaterial on a biochip, material in wells of a microtiter plate, etc.