Accession Number : ADA136215

Title :   Recursive Interpolation of Space-Limited Scenes.

Descriptive Note : Final rept. 16 Jun 82-15 Jun 83,

Corporate Author : VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Beex,A A L

PDF Url : ADA136215

Report Date : Jul 1983

Pagination or Media Count : 54

Abstract : The problem of extrapolation of scene-limited functions was investigated with an eye towards accommodating noisy measurements, and incorporating all available a priori information. An iterative projection approach was introduced, aimed specifically at removing a priori information and constraint incompatibility due to noisy measurements. Soft frequency domain measurement constraints and soft scene domain limitation constraints were proposed, and can alleviate convergence problems that occur when the imposed information is not compatible. The soft frequency domain measurement constraint specifically allows the algorithm iterate to deviate from the noisy measurements, in recognition of the fact that the measurements were noisy, and they should therefore not be imposed as an absolute or hard constraint. The resulting alternating projection algorithm was shown to correspond to a non-expansive operator so that many solutions exist, all of which satisfy the a priori information and constraints. (Author)

Descriptors :   *Recursive functions, *Interpolation, *Infrared detectors, Iterations, Algorithms, Convergence, Problem solving, Noise, Measurement, Subroutines

Subject Categories : Theoretical Mathematics
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE