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363-131 121-55A 14-.5
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Class Number: 382
Class Title: IMAGE ANALYSIS
Subclass Subclass
Number Title
1 APPLICATIONS
2 .Personnel identification
3 ..Using a signiture
4 ..Using a fingerprint
5 ...Extracting minutiae such as ridge endings and bifurcations
6 .Biomedical applications (e.g., blood cell analysis)
7 .Reading currency or bank checks (e.g., documents bearing E-13B
type characters)
8 .Manufacturing
9 IMAGE SEGMENTATION
10 PATTERN RECOGNITION
11 .Limited to specially coded, human-readable characters
12 ..Characters formed entirely of parallel bars (e.g., CMC-7)
13 .On-line recognition of handwritten characters
14 .Adaptive pattern recognizers (e.g., adaline, perceptron)
15 ..Capable of unsupervised learning
16 .Feature extraction
17 ..Multi-spectral features (e.g., color, frequency, phase)
18 ..Feature counting or histogramming
19 ..Local or regional features
20 ...Slice codes
21 ...Directional codes and vectors (e.g., Freeman chains,
compass-like codes)
22 ...Pattern boundary and edge measurements
23 ...Point features (e.g., spatial coordinate descriptors)
24 ...Linear stroke analysis (e.g., limited to straight lines)
25 ...Shape and form analysis
26 ....Topological properties (e.g., number of holes in a pattern,
connectivity, etc.)
27 ...Neighborhood transforms and matrix operators
28 ..Global features (e.g., measurements on image as a whole, such
as area, texture, projections, etc.)
29 ..Waveform analysis
30 .Template matching (e.g., specific devices that determine the
best match)
31 ..Spatial filtering (e.g., holography)
32 ..Nonholographic optical mask or transparency
33 ..Electronic mask
34 ...Comparator
35 ...Resistor matrix
36 .Classification
37 ..Sequential decision process (e.g., decision tree structure)
38 ...With a multi-level classifier
39 ..Statistical decision process
40 .Context analysis
41 IMAGE TRANSFORMATION OR PRE-RECOGNITION PROCESSING
42 .Correlation or convolution
43 .Fourier, Hadamard, or Walsh transform
44 .Changing the image coordinates
45 ..To position or translate the image
46 ..To rotate the image
47 ..To change the scale or size of an imagee
48 .Locating a pattern
49 .Multi-layered image transformations
50 .Adaptive quantization or variable thresholding
51 ..Based on the results of a histogram or count
52 ..Based on a local average
53 ..Based on peak levels
54 .Image enhancement or restoration
55 ..Line thinning or thickening
56 .Data compression or image coding
57 POST-RECOGNITION PROCESSING (E.G., EDITING AND ERROR CHECKING)
58 IMAGE SENSING
59 .Hand-held
60 .Curve tracer
61 .Format control
62 .Multiple scanning
63 ..Pre-scanning
64 .Magnetic
65 .Optical
66 ..Single spot
67 ..Single line
68 ..Full retina
69 MISCELLANEOUS