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Electroacoustical imaging technique for encoding incoherent radiance fields as Gabor elementary signalsA technique is presented for directly encoding incoherent radiance fields as Gabor elementary signals. This technique uses an electro-acoustic sensor to modulate the electronic charges induced by the incident radiance field with the electric fields generated by Gaussian modulated sinusoidal acoustic waves. The resultant signal carries the amplitude and phase information required for localizing spatial frequencies of the radiance field. These localized spatial frequency representations provide a link between the either geometric or Fourier transform representations currently used in computer vision and pattern recognition.
Document ID
19850014756
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Fales, C. L.
(NASA Langley Research Center Hampton, VA, United States)
Huck, F. O.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
March 1, 1985
Subject Category
Instrumentation And Photography
Report/Patent Number
NAS 1.15:86372
NASA-TM-86372
Report Number: NAS 1.15:86372
Report Number: NASA-TM-86372
Accession Number
85N23067
Funding Number(s)
PROJECT: RTOP 307-04-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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