Medical image processing using transient Fourier holography in bacteriorhodopsin films

Sri Rajasekhar Kothapalli, Pengfei Wu, Chandra S. Yelleswarapu, D. V.G.L.N. Rao

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Real time image processing is demonstrated by recording and reconstructing the transient photoisomerizative grating formed in the bR film using Fourier holography. Desired spatial frequencies including both high and low band in the object beam are reconstructed by controlling the reference beam intensity. The results are in agreement with a theoretical model based on photoisomerization grating. We exploit this technique to process mammograms in real-time for identification of microcalcifications buried in the soft tissue for early detection of breast cancer. A feature of the technique is the ability to transient display of selected spatial frequencies in the reconstructing process which enables the radiologists to study the features of interest.

Original languageEnglish (US)
Pages (from-to)5836-5838
Number of pages3
JournalApplied Physics Letters
Issue number24
StatePublished - Dec 13 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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