Errors in optical computation of correlation coefficients

Kumar, B. V. K. Vijaya

doi:10.1364/ao.22.000209

Appl. Opt.

1983

DOI: 10.1364/ao.22.000209

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Errors in optical computation of correlation coefficients

B. V. K. Vijaya Kumar

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1995

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Realization of digital optical matrix-vector multiplication

Bandyopadhyay

Datta

Bawa

et al. 1995

J. Phys. D: Appl. Phys.

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A new matrix-vector multiplication technique is proposed where free-space optical interconnections are used. The multiplication is carried out by a convolution technique where one set of numbers (multiplicands) is represented by the on/off states of light sources and the other sets of numbers (the multiplier) are recorded in matrix form on a spatial light modulator. The partial products are recorded on a detector array which, when added by a microprocessor, yield the respective convolution coefficients. No analogue to digital conversion electronics are necessary in the proposed technique and instead only a thresholding circuit is used. Compared to other existing techniques, the processing time is also reduced in the proposed system.

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Realization of digital optical matrix-vector multiplication

Bandyopadhyay

Datta

Bawa

et al. 1995

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

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Errors in optical computation of correlation coefficients

Cited by 1 publication

References 7 publications

Realization of digital optical matrix-vector multiplication

Realization of digital optical matrix-vector multiplication

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