US PATENT SUBCLASS 382 / 232
IMAGE COMPRESSION OR CODING

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

232IMAGE COMPRESSION OR CODING {14}
233  DF  .~> Including details of decompression
234  DF  .~> Parallel coding architecture
235  DF  .~> Substantial processing of image in compressed form
236  DF  .~> Interframe coding (e.g., difference or motion detection)
237  DF  .~> Gray level to binary coding
238  DF  .~> Predictive coding
239  DF  .~> Adaptive coding (i.e., changes based upon history, activity, busyness, etc.)
240  DF  .~> Pyramid, hierarchy, or tree structure
241  DF  .~> Polygonal approximation
242  DF  .~> Contour or chain coding (e.g., Bezier)
243  DF  .~> Shape, icon, or feature-based compression
244  DF  .~> Lossless compression {3}
248  DF  .~> Transform coding {2}
251  DF  .~> Quantization {2}

DEFINITION

Classification: 382/232

IMAGE COMPRESSION OR CODING:

(under the class definition) Subject matter in which the quantity of data used to represent an image is reduced to minimize storage or transmission requirements.

(1) Note. In subclasses 133 through 154, the employed systems conventionally include both compression and decompression means or processes.

SEE OR SEARCH CLASS

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

202, for image data compression in display device.

348, Television,

384, 440 for bandwidth compression systems for television, where the television is an integral part of the system.

358, Facsimile, 426, 433 for time or band width compression in facsimile.

375, Pulse or Digital Communications,

122, for bandwidth reduction or expansion in communications systems.

708, Electrical Computers: Arithmetic Processing and Calculating,

203, for compression/decompression in digital computers.