US PATENT SUBCLASS 382 / 199
.~.~.~ Pattern boundary and edge measurements

Current as of: June, 1999
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382 /   HD   IMAGE ANALYSIS

181  DF  PATTERN RECOGNITION {8}
190  DF  .~ Feature extraction {5}
195  DF  .~.~ Local or regional features {7}
199.~.~.~ Pattern boundary and edge measurements {1}
200  DF  .~.~.~.~> Measurements made on alphanumeric characters

DEFINITION

Classification: 382/199

Pattern* boundary and edge measurements:

(under subclass 195) Subject matter wherein local features are extracted specifically in areas of transition between the pattern* and the background, thereby producing so-called transition, edge, or boundary signals.

(1) Note. To be classified herein, the measurements of boundaries and edges should be for the purpose of recognition of the pattern*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

143, for data compression using boundaries and edges.

166+, for the enhancement of boundaries and edges.