Method and apparatus for processing of reconstructed holographic images of digital data patterns
US5694488A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Feb 21, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reconstructing holographic images is disclosed. A holographic image is recreated from a holographic storage media (10) by passing a reference beam (38) therethrough, which holographic image comprises a composite data image of discrete binary images arranged in an array. A reconstructed data beam (58) is then directed onto a detector array (42), resulting in a reconstructed composite data image (62) formed on the surface thereof. The detector (42) is comprised of a plurality of detector elements or pixels (92) arranged in an array corresponding to the original array of binary data images that are associated with the reconstructed composite data image (62). The reconstructed composite data image is oversampled such that each discrete binary image in the reconstructed composite data image is associated with, for example, four of the detector elements (92) which define pixels. Each group of pixels that is associated with an image is defined as a bixel. A 2.times.2 Margolus neighborhood or other suitable cell neighborhood is defined that is scanned across the array in a predetermined manner and transformation rules applied to the output of the four pixels with…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.