Opus Instruments is the manufacturer of the Osiris infrared imaging system designed specifically for art conservators to provide high-resolution, high-speed images in a small portable camera. Osiris has been used to examine hundreds of works of art at many of the major national art galleries throughtout the world. In the Louvre, works by artists such as Leonarado da Vinci, Rembrandt, Watteau have been examined. An ARM(R) microcontroller sits at the heart of the camera controlling the scanning system, driving the infrared sensor and sending the captured data to the PC over a USB connection. The PC receives the data stream and assembles it into an image of the under drawing, displaying it as the scanning process proceeds.