Image analysis – Histogram processing – For setting a threshold
Patent
1994-12-01
1996-07-09
Bayerl, Raymond J.
Image analysis
Histogram processing
For setting a threshold
395 22, 395 23, 395 24, 382107, 382156, 382157, 382158, 382103, 382291, 348699, G06E 100, G06E 300, G06T 720
Patent
active
055353029
ABSTRACT:
A method and apparatus is provided to determine image affine flow from time-varying imagery. The novel artificial neural computational system of a cortical hypercolumn comprising a plurality of specific orientation (SO) columns and a least square error fitting circuit is based on a Lie group model of cortical visual motion processing. Time-varying imagery, comprising intensity imagery and time-derivative imagery is provided to a plurality of specific orientation (SO) columns comprising simple cells and Lie germs. The cortical representation of image time derivative and affine Lie derivatives are extracted from responses of simple cells and Lie germs, respectively. The temporal derivative and affine Lie-derivative information obtained from each specific orientation (SO) columns is applied to least square error fitting analog circuit having a three layer multiplicative neural architecture to determine image affine flow components in accordance with an error minimization gradient dynamical system technique.
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Bayerl Raymond J.
Katbab A.
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