US PATENT SUBCLASS 382 / 173
IMAGE SEGMENTATION

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

173IMAGE SEGMENTATION {5}
174  DF  .~> Using projections (i.e., shadow or profile of characters)
175  DF  .~> Separating document regions using preprinted guides or markings
176  DF  .~> Distinguishing text from other regions
177  DF  .~> Segmenting individual characters or words {2}
180  DF  .~> Region labeling (e.g., page description language)

DEFINITION

Classification: 382/173

IMAGE SEGMENTATION:

(under the class definition) Subject matter wherein operations are carried out on an image so that certain meaningful regions of pattern*s of interest, as defined by an observer, are distinguishable from other regions or pattern*s.

(1) Note. Excluded from this subclass are segmenting operations performed on a single character for the purpose of decomposing the character into simpler features. This sort of character decomposition is classifiable herein below in the appropriate subclass indented under "Feature Extraction" or "Image Transformation".

SEE OR SEARCH THIS CLASS, SUBCLASS:

164, for segmentation based on color.

171, for segmentation based on histogram.