US PATENT SUBCLASS 382 / 276
IMAGE TRANSFORMATION OR PREPROCESSING

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

276IMAGE TRANSFORMATION OR PREPROCESSING {13}
277  DF  .~> Transforming each dimension separately
278  DF  .~> Correlation
279  DF  .~> Convolution
280  DF  .~> Fourier transform
281  DF  .~> Walsh, Hough, or Hadamard transform
282  DF  .~> Selecting a portion of an image {1}
284  DF  .~> Combining image portions (e.g., portions of oversized documents)
285  DF  .~> Mapping 2-D image onto a 3-D surface
286  DF  .~> Measuring image properties (e.g., length, width, or area) {4}
293  DF  .~> Changing the image coordinates {4}
302  DF  .~> Multilayered image transformations {2}
305  DF  .~> Image storage or retrieval {1}
307  DF  .~> General purpose image processor {1}

DEFINITION

Classification: 382/276

IMAGE TRANSFORMATION OR PRE-PROCESSING:

(under the class definition) Subject matter directed either to transformation of a given representation of an image into another representation by some mathematically-derived transform or process; or to operations performed on an image representation, prior to any attempt at recognition, for the specific purpose of facilitating acquisition or subsequent recognition of imagery pattern*s.

(1) Note. Image sensors per se are excluded from this subclass.