Unconventional Image Recovery Techniques.
Abstract
The main theme of this contract is the development of unconventional imaging techniques. The imaging methods advocated result in complicated nonlinear relations between the object and its image, inversion techniques are required to translate the measured data into a meaningful estimate of the object. Although these methods require a large amount of computation, they are relatively cheap compared to the costs of large aperture optical systems. The technical approach is two-fold: first development of the theory of the unconventional imaging scenario in question; second adaption of the latest techniques from numerical analysis to carry out the inversion from measured data to reconstructed object. One problem was completed and written up for publication: Inversion of the modulus and phase of a coherently illuminated object from its measured diffraction image. This constitutes the main body of the report along with representative numerical calculations. The inversion techniques developed here should be of great use in various biomedical imaging techniques and could result in replacing phase contract microscopy. (MM)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 20, 1994
- Accession Number
- ADA290799
Entities
People
- Richard Barakat