Filter-subtract-decimate hierarchical pyramid signal analyzing a

Details Filter-subtract-decimate hierarchical pyramid signal analyzing a Filter-subtract-decimate hierarchical pyramid signal analyzing a

1987-05-15

1988-01-05

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358133, 358166, 382 43, 382 49, 364723, 364724, 364725, G06K 936

Patent

active

047181044

ABSTRACT:
A pyramid frequency analyzing technique is taught in which an input sampled temporal signal is convolved with a spatially localized, gradual rolloff kernel weighting function, which is subtracted from the input signal in each pyramid stage prior to the convolved signal having its sample density decimated and applied as an input to the next pyramid stage (rather than subsequent to the convolved signal having its sample density decimated as in a Burt Pyramid analyzer). In addition, a synthesizing technique is taught which provides additional high-frequency peaking in each stage thereof, not provided by a Burt Pyramid synthesizer.

REFERENCES:
patent: 4447886 (1984-05-01), Meeker
Rabiner, L. R. and Schafer R. W., "A Digital Signal Processing Approach to Interpolation", Proc. IEEE, vol. 61, No. 6, Jun. 1973, pp. 692-702.

Affiliated with

Also associated with

Rating

Filter-subtract-decimate hierarchical pyramid signal analyzing a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter-subtract-decimate hierarchical pyramid signal analyzing a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter-subtract-decimate hierarchical pyramid signal analyzing a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-12782