Accession Number : ADA255859


Title :   A Boundary Integral Method for an Inverse Problem in Thermal Imaging


Descriptive Note : Final rept.


Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA


Personal Author(s) : Bryan, Kurt


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a255859.pdf


Report Date : Aug 1992


Pagination or Media Count : 30


Abstract : This paper examines an inverse problem in thermal imaging, that of recovering a void in a material from its surface temperature response to external heating. Uniqueness and continuous dependence results for the inverse problem are demonstrated and a numerical method for its solution developed. This method is based on an optimization approach, coupled with a boundary integral equation formulation of the forward heat conduction problem. Some convergence results for the method are proved and several examples are presented using computationally generated data.


Descriptors :   *THERMAL IMAGES , *INVERSE PROBLEMS , OPTIMIZATION , NONDESTRUCTIVE TESTING , MATERIALS , FORMULATIONS , VOIDS , SURFACES , BOUNDARIES , RESPONSE , HEATING , CONVERGENCE , INTEGRAL EQUATIONS , SURFACE TEMPERATURE


Subject Categories : Numerical Mathematics
      Thermodynamics
      Infrared Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE