INFRARED-RAY VIDEO DEVICE

摘要

PURPOSE:To observe changes in surface temperature due to the variations of temperature data on the surface of human body and blood distribution, by displaying simultaneously both the primary and secondary differential images formed by the time changes in the surface temperature of an object. CONSTITUTION:An infrared-ray image of an object to be observed is picked up at a fixed time interval and recorded directly on image memory parts VM1-VM3. The primary differential image memory parts DM1 and DM2 record the primary differential image obtained from the differences among the infrared-ray images stored in the parts VM1-VM3. While a secondary differential memory part DM3 stores a secondary differential image obtained from the difference between the primary differential images stored in the parts DM1 and DM2. These differential images are displayed at a time on a single display screen DSP.