Single-Focus Images Restored from Conventionally-Recorded Superposed Coded Multi-Focus Photographs

摘要

It has recently been shown that it is possible to use two different holographic methods to extract greatly sharpened 'deblurred' images from photographs which have been blurred by accident or deliberately coded, for instance in view of 'aperture synthesis' applications. Simultaneously, for about one year, the authors have been exploring coding methods which would permit us to restore single-focus images from a conventionally recorded, suitably coded multi-focus photograph. The results of the work and the principles of the method are given.