Optical processing architecture and its potential application for digital and analog radiography

Hong Liu, Jian Xu, Laurie L. Fajardo, Shizhuo Yin, Francis T.S. Yu

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


In this report we introduce the fundamental architectures and the potential applications of optical processing techniques in medical imaging. Three basic optical processing architectures were investigated for digital and analog radiography. The processors consist of a module that converts either the analog or the digital radiograph into a coherent light distribution; a coherent optical processing architecture that performs various mathematical operations; a programmable digital-optical interface and other accessories. Optical frequency filters were implemented for mammographic and other clinical feature enhancement. In medical image processing, digital computers offer the advantages of programmability and flexibility. In contrast, optical processors perform parallel image processing with high speed. Optical processors also offer analog nature, compact size, and cost effectiveness. With technical advances of digital- optical interface devices, the medical image processor, in the foreseeable future, may be a hybrid device, namely, a programmable optical architecture.

Original languageEnglish (US)
Pages (from-to)648-652
Number of pages5
JournalMedical Physics
Issue number4
StatePublished - Apr 1999

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Radiology Nuclear Medicine and imaging


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