Class 382 | IMAGE ANALYSIS |
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100 | APPLICATIONS |
101 | Mail processing |
103 | Target tracking or detecting |
104 | Vehicle or traffic control (e.g., auto, bus, or train) |
106 | Range or distance measuring |
107 | Motion or velocity measuring |
108 | Surface texture or roughness measuring |
109 | Seismic or geological sample measuring |
110 | Animal, plant, or food inspection |
111 | Textiles or clothing |
112 | Document or print quality inspection (e.g., newspaper, photographs, etc.) |
113 | Reading maps, graphs, drawings, or schematics |
114 | Reading aids for the visually impaired |
115 | Personnel identification (e.g., biometrics) |
116 | Using a combination of features (e.g., signature and fingerprint) |
117 | Using a characteristic of the eye |
118 | Using a facial characteristic |
119 | Using a signature |
120 | Sensing pressure together with speed or acceleration |
121 | Sensing pressure only |
122 | Sensing speed or acceleration only |
123 | Sensing geometrical properties |
124 | Using a fingerprint |
128 | Biomedical applications |
129 | DNA or RNA pattern reading |
130 | Producing difference image (e.g., angiography) |
131 | Tomography (e.g., CAT scanner) |
132 | X-ray film analysis (e.g., radiography) |
133 | Cell analysis, classification, or counting |
135 | Reading paper currency |
136 | Reading coins |
137 | Reading bank checks (e.g., documents bearing E-13B type characters) |
141 | Manufacturing or product inspection |
142 | Bottle inspection |
143 | Inspection of packaged consumer goods |
144 | Mask inspection (e.g., semiconductor photomask) |
145 | Inspection of semiconductor device or printed circuit board |
146 | Measuring external leads |
147 | Inspecting printed circuit boards |
148 | At plural magnifications or resolutions |
149 | Fault or defect detection |
151 | Alignment, registration, or position determination |
152 | Tool, workpiece, or mechanical component inspection |
153 | Robotics |
154 | 3-D or stereo imaging analysis |
155 | LEARNING SYSTEMS |
162 | COLOR IMAGE PROCESSING |
163 | Drop-out color in image (i.e., color to be removed) |
164 | Image segmentation using color |
165 | Pattern recognition or classification using color |
166 | Compression of color images |
167 | Color correction |
168 | HISTOGRAM PROCESSING |
169 | With a gray-level transformation (e.g., uniform density transformation) |
170 | With pattern recognition or classification |
171 | For segmenting an image |
172 | For setting a threshold |
173 | IMAGE SEGMENTATION |
174 | Using projections (i.e., shadow or profile of characters) |
175 | Separating document regions using preprinted guides or markings |
176 | Distinguishing text from other regions |
177 | Segmenting individual characters or words |
180 | Region labeling (e.g., page description language) |
181 | PATTERN RECOGNITION |
182 | Limited to specially coded, human-readable characters |
183 | Characters formed entirely of parallel bars (e.g., CMC-7) |
184 | With separate timing or alignment marks |
185 | Ideographic characters (e.g., Japanese or Chinese) |
186 | Unconstrained handwriting (e.g., cursive) |
187 | On-line recognition of handwritten characters |
190 | Feature extraction |
191 | Multispectral features (e.g., frequency, phase) |
192 | Feature counting |
193 | Counting intersections of scanning lines with pattern |
194 | Counting individual pixels or pixel patterns |
195 | Local or regional features |
196 | Slice codes |
197 | Directional codes and vectors (e.g., Freeman chains, compasslike codes) |
199 | Pattern boundary and edge measurements |
201 | Point features (e.g., spatial coordinate descriptors) |
202 | Linear stroke analysis (e.g., limited to straight lines) |
203 | Shape and form analysis |
205 | Local neighborhood operations (e.g., 3x3 kernel, window, or matrix operator) |
206 | Global features (e.g., measurements on image as a whole, such as area, projections, etc.) |
207 | Waveform analysis |
209 | Template matching (e.g., specific devices that determine the best match) |
210 | Spatial filtering (e.g., holography) |
212 | Nonholographic optical mask or transparency |
215 | Using dynamic programming or elastic templates (e.g., warping) |
216 | At multiple image orientations or positions |
217 | Electronic template |
224 | Classification |
225 | Cluster analysis |
226 | Sequential decision process (e.g., decision tree structure) |
228 | Statistical decision process |
229 | Context analysis or word recognition (e.g., character string) |
232 | IMAGE COMPRESSION OR CODING |
233 | Including details of decompression |
234 | Parallel coding architecture |
235 | Substantial processing of image in compressed form |
236 | Interframe coding (e.g., difference or motion detection) |
237 | Gray level to binary coding |
238 | Predictive coding |
239 | Adaptive coding (i.e., changes based upon history, activity, busyness, etc.) |
240 | Pyramid, hierarchy, or tree structure |
241 | Polygonal approximation |
242 | Contour or chain coding (e.g., Bezier) |
243 | Shape, icon, or feature-based compression |
244 | Lossless compression |
248 | Transform coding |
251 | Quantization |
254 | IMAGE ENHANCEMENT OR RESTORATION |
255 | Focus measuring or adjusting (e.g., deblurring) |
256 | Object boundary expansion or contraction |
260 | Image filter |
261 | Adaptive filter |
262 | Median filter |
263 | Highpass filter (i.e., for sharpening or enhancing details) |
264 | Lowpass filter (i.e., for blurring or smoothing) |
265 | Recursive filter |
266 | Edge or contour enhancement |
267 | Minimize discontinuities in dot-matrix image data (i.e., connecting or merging the dots) |
268 | Minimize discontinuities at boundaries of image blocks (i.e., reducing blocking effects or effects of wrap-around) |
269 | Minimize jaggedness in edges (e.g., anti-aliasing) |
270 | Variable threshold, gain, or slice level |
271 | Based on the results of a count |
272 | Based on a local average, mean, or median |
273 | Based on peak levels |
274 | Intensity, brightness, contrast, or shading correction |
275 | Artifact removal or suppression (e.g., distortion correction) |
276 | IMAGE TRANSFORMATION OR PREPROCESSING |
277 | Transforming each dimension separately |
278 | Correlation |
279 | Convolution |
280 | Fourier transform |
281 | Walsh, Hough, or Hadamard transform |
282 | Selecting a portion of an image |
284 | Combining image portions (e.g., portions of oversized documents) |
285 | Mapping 2-D image onto a 3-D surface |
286 | Measuring image properties (e.g., length, width, or area) |
287 | Detecting alignment marks |
288 | Determining center of gravity or moment |
289 | Determining amount an image is rotated or skewed |
291 | Determining the position of an object |
293 | Changing the image coordinates |
294 | Registering or aligning multiple images to one another |
295 | To position or translate an image |
296 | To rotate an image |
298 | To change the scale or size of an image |
302 | Multilayered image transformations |
305 | Image storage or retrieval |
307 | General purpose image processor |
309 | EDITING, ERROR CHECKING, OR CORRECTION (E.G., POSTRECOGNITION PROCESSING) |
312 | IMAGE SENSING |
313 | Hand-held |
316 | Curve tracer |
317 | Sensor control (e.g., OCR sheet controls copier or fax) |
318 | Multiple scanning |
320 | Magnetic |
321 | Optical (e.g., OCR) |
325 | MISCELLANEOUS |
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