Optimum fast textural feature extractor

Details Optimum fast textural feature extractor Optimum fast textural feature extractor

1988-03-23

1990-01-30

Eisenzopf, Reinhard J.

Image analysis

Histogram processing

For setting a threshold

382 16, 382 27, 382 43, G06K 952, G06K 946, G06K 966

Patent

active

048978817

ABSTRACT:
The invention relates to a textural parameter extractor for classification or learning. Four (4) simple 2D optimum masks independent of image, are applied to four adjacent pixels in order to diagonize the associated covariance matrice. The first three (3) central moments, namely absolute deviation, standard deviation and skewness for each transformed image constitute a feature vector of twelve (12) components for classification purposes. Parallel and Sequential structures are also presented for fast textural feature extractor applications.

REFERENCES:
patent: 3859515 (1975-01-01), Radcliffe
patent: 4134134 (1979-01-01), Lux
patent: 4621337 (1986-11-01), Cates
Yamasaki et al: "Basic Equation of Automatic Normalizer for Character Patterns Using Moments"--Electronics & Comms. in Japan--vol. 55-D; No. 5--1972.
Cohen: "Classification of Natural Textures . . . "--IEEE Transactions on Acoustics, Speech and Signal Processing--Jan. 89--pp. 127-128.

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