White-Light Optical Information Processing and Holography.
Abstract
The first phase of our research program on white-light optical information processing and holography has been completed. In this period, we have synthesized an optical information processing system, which permits complex spatial filtering with a broad band light source. The application of this technique of optical processing with incoherent source to smeared image deblurring was carried out. Since the use of white-light source, we have extended to color image deblurring. We have also developed a new technique for image subtraction with encoded extended incoherent source. Color image subtraction with the source encoding of two narrow spectral incoherent sources has also been demonstrated. As compared with the coherent optical processing technique, we had shown that the incoherent source techniques provides better image quality, and very low coherent artifact noise. We have also shown that the incoherent optical processing system is generally economical, versatile, and easier to maintain. We have also, in this period, investigated the spatial and temporal coherence requirements for the partially coherent processing technique. Several significant results for image deblurring and image subtraction were obtained. For more efficient utilization of an extended incoherent source, a source encoding technique was developed. We have shown that, since the spatial coherence requirement is dependent upon the processing operation, a strict coherence requirement may not be needed for some optical processing operations. Thus, a reduce coherence requirement may be used for a specific processing operation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 03, 1982
- Accession Number
- ADA119220
Entities
People
- Francis T. S. Yu
Organizations
- Pennsylvania State University