A New Thermal Infrared Camera Calibration Approach Using Wireless MEMS Sensors英文电子书.pdf

A New Thermal Infrared Camera Calibration Approach Using Wireless MEMS Sensors Peter Bajcsy and Sunayana Saha National Center for Supercomputing Applications (NCSA) University of Illinois at Urbana -Champaign, Illinois, USA pbajcsy@, ssaha@ ABSTRACT The image content includes not only its spatial information, for example, object silhouettes, but also This work presents a unique thermal infrared (IR) intensity or temperature profile information. In order camera calibration technique using wireless “smart” to obtain temperature profile information from a micro electro -mechanical (MEMS) sensors. The thermal IR image and to discriminate hazardous word “smart” denotes capabilities of MEMS other temp eratures from harmless temperatures, one has to than sensing, such as, computing and communication. convert the raw image values into engineering units, We foresee the use of widely distributed and deeply such as, degrees of Celsius or Fahrenheit or Kelvin. embedded “smart” MEMS sensors as potential This conversion, also denoted as spectral calibration, calibration gauges for spectral cameras, such as, is one out of many steps leading to image content thermal IR or visible spectrum cameras. Thus, the understanding, so much needed in hazard aware primary motivation of our presented work is to spaces. investigate the problem of spectral camera cal