Abstract

Cross-correlation technique is effective as an alternative to coding procedures for systematizing the manipulation of a large file of digital spectral data. As a search method, it is reliable in the recognition of matching spectra and yields a low incidence of false identifications. Precision is governed by the purity of specimens rather than instrumental factors. The utility of a file is augmented by treatment of the spectra as vectors that are normalized to unit length before storage. Such reduction minimizes computer time required for the determination of correlation coefficients; in addition, proportionality factors are eliminated and plots can be superposed on a concentration-independent basis to supplement correlation searches.

Reliability of content-addressable data search in a defocused volume holographic data storage system

Bhargab Das, Joby Joseph, and Kehar Singh
Appl. Opt. 49(5) 781-789 (2010)

Digital Laser Raman Spectrometer System with On-Line Computer Control of Data Acquisition and Reduction

Charles H. Warren and Louis Ramaley
Appl. Opt. 12(8) 1976-1982 (1973)

Analyzing visual-search observers using eye-tracking data for digital breast tomosynthesis images

Zhengqiang Jiang, Mini Das, and Howard C. Gifford
J. Opt. Soc. Am. A 34(6) 838-845 (2017)

Apparatus for Measurement of Luminescence Spectra with a Digital Recording System

F. R. Lipsett, G. Bechthold, F. D. Blair, F. V. Cairns, and D. H. O’Hara
Appl. Opt. 9(6) 1312-1318 (1970)

Performance analysis of content-addressable search and bit-error rate characteristics of a defocused volume holographic data storage system

Bhargab Das, Joby Joseph, and Kehar Singh
Appl. Opt. 46(22) 5461-5470 (2007)