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5L096 IMAGE ANALYSIS
G06T7/00 -7/00,350@Z;7/00,600-7/90@Z;G06V10/00-20/90;30/418;40/16@B-40/16@Z;40/20
G06T7/00-7/00,350@Z;7/00,600-7/90@Z;G06V10/00;10/30-10/98;G06V20/00-20/90;G06V30/418;G06V40/16@B-40/16@Z;40/20 AA AA00
PHYSICAL PROPERTY OF IMAGES FOR ANALYSIS 		AA01 AA02 AA03 AA05 AA06 AA07 AA09
. Colour . . Colour images . . Black and white images . Quantisation level . . Density i.e. n-ary values . . Binary values . Three-dimensional images
AA11 AA13
. with markings for processing on input images . Others *
BA BA00
TYPE OF INPUT IMAGES OR USE THEREOF 		BA01 BA02 BA03 BA04 BA05 BA06 BA07 BA08
. Specific use . . Monitoring . . Inspection . . Automobiles . . Robots . . Medical treatments . . Copying machines facsimiles or printers . . Other use *
BA11 BA12 BA13 BA14 BA15 BA16 BA17 BA18 BA20
. Specific images . . Drawings . . Medical images . . Seal impressions . . Fingerprints . . Voice . . Characters . . Other specific images * . Others *
CA CA00
INPUT MEANS 		CA01 CA02 CA03 CA04 CA05 CA06 CA07 CA08 CA09 CA10
. Image acquisition . . Cameras . . . Photographic methods . . . . Multiple images from a single camera . . . . Multiple cameras . . . . Photographing out of focus . . . . Specific backgrounds in photographing . . . Methods of scanning . . . . Raster scanning . . . . Oblique scanning
CA11 CA12 CA13 CA14 CA15 CA16 CA17 CA18
. . . . Spiral scanning . . . . Radial scanning . . . . Scanning more than once . . Charge-Coupled Devices (CCD) . . Tablets . . Line sensors . . Illuminating means * . . Other types of image acquisition *
CA21 CA22 CA23 CA24 CA25 CA27
. Input by operators . . Designation of parameters . . for correcting errors . . for designating areas . . Other operator input * . Others *
DA DA00
OUTPUT FORM 		DA01 DA02 DA03 DA04 DA05
. Output on bit maps e.g. images . Numeric values e.g. results of recognition or geometric values . Warnings . characterised by the manner of displaying the output * . Others *
EA EA00
PREPROCESSING 		EA01 EA02 EA03 EA04 EA05 EA06 EA07
. Shaping of images . . Expansion contraction or shading # . . Enlargement or reduction # . . Thin line or thick line formation # . . Elimination of noise . . Smoothing . . Other shaping of images *
EA11 EA12 EA13 EA14 EA15 EA16 EA17 EA18
. Normalisation . . Normalisation of brightness . . Normalisation of size . . Normalisation of position i.e. alignment . . . with movement in parallel . . . with rotational movement . . . with movement of patterns in sequence for visual coincidence thereof . . Other normalisation *
EA21 EA22 EA23 EA24 EA25 EA26 EA27 EA28
. Data conversion . . Conversion to stroke data . . Conversion to vector data . . Coding * . . . Chain codes . . Coordinate systems * . . . XY coordinates . . . Polar coordinates
EA31 EA33 EA35 EA37 EA39
. Approximation by specific patterns . Interpolation . Segmentation . Erasing unnecessary part of images . Weighting
EA41 EA43 EA45
. Initialisation . Binary coding . Others *
FA FA00
EXTRACTION OF FEATURES 		FA01 FA02 FA03 FA04 FA05 FA06 FA07 FA08 FA09 FA10
. Segmentation . . Drawings of irregular shapes . . Line separation e.g. including broken or dotted lines . . Circles or arcs . . Polygons . . Outlines . . Loops . . Irregularity . . Singular points * . . . Points of branching or intersection
FA12 FA13 FA14 FA15 FA16 FA17 FA18 FA19
. . . Bend points inflection points or apexes . . . Starting points or ending points . . . Points distinguished by density e.g. density peaks . . . Points distinguished by colour e.g. specific colours . . Frames . . Flaws . . Circumscribed polygons . . Other segmentation *
FA21 FA22 FA23 FA24 FA25 FA26 FA27 FA28 FA29
. Image conversion . . Transforms . . . Fourier transforms . . . Huff transforms . . . Affine transforms . . . Other transforms * . . Expansion . . . K-L expansion . . . Other expansion *
FA31 FA32 FA33 FA34 FA35 FA36 FA37 FA38 FA39
. Statistical characteristics . . Mean . . Variance . . Correlation . . Histograms . . . Projection histograms . . . Light and dark histograms . . Projection . . Other statistical characteristics *
FA41 FA42 FA43 FA44 FA45 FA46
. Region textures . . Binary regions . . Dot regions . . Character regions . . Photograph regions . . Other textures *
FA51 FA52 FA53 FA54 FA55 FA56 FA57 FA58 FA59 FA60
. Geometric feature values . . Number * . . . Number of regions . . . Number of pixels . . Moments . . . Zeroth moment . . . Primary moment . . . Secondary moment . . Area . . Centre of gravity
FA62 FA63 FA64 FA65 FA66 FA67 FA68 FA69 FA70
. . Centre . . Main axis of inertia . . Length . . . Length around the perimeter . . Distance . . Direction or angle . . Curvature . . Position . . Other geometric values *
FA71 FA72 FA73 FA74 FA75 FA76 FA77 FA78 FA79
. Structuring the relationship between characteristics . . Relationships between segments . . . Relationships of line-segment connections . . . Tree structures . . . . Bisected trees . . . Positional relationship of figures . . . . Overlapping . . . . Conjugation relation . . Other structuration *
FA81
. . Others *
GA GA00
PROCESSING TECHNIQUE 		GA01 GA02 GA03 GA04 GA05 GA06 GA07 GA08 GA09 GA10
. Calculations with peripheral pixels . . Differentiation # . . . Second-order differentiation . . . Directional differentiation . . Laplacian . . Differences # . . . Differences between pixels in one image . . . Differences between pixels in two images . . Integration . . Masks or operators #
GA11 GA12 GA13 GA14 GA15 GA17 GA19
. . . Two-by-two grids . . . Three-by-three grids . . by tracking . . . Four connections . . . Eight connections . Windows # . Block separation
GA21 GA22 GA23 GA24 GA26 GA28 GA30
. Logical operations # . . AND . . OR . . EXOR . Reduction of the total number of pixels e.g. averaging or thinning . Counting of the number of pixels . Probability
GA32 GA34 GA36 GA38 GA40
. Least-squares method . Labelling . Run length . Use of specific colours . . Red green and blue
GA41 GA43 GA45 GA47 GA49
. . Hue brightness or chroma . Use of specific gradations . On-line hand-drawn figures . Strokes . with optical arithmetic processing *
GA51 GA53 GA55 GA57 GA59
. Threshold values #* . Tables #* . Filters #* . Fuzzy techniques . Others *
HA HA00
RECOGNITION 		HA01 HA02 HA03 HA04 HA05 HA07 HA08 HA09
. Acquisition of multiple images for comparison . . Analysis of moving images . . . Extraction of moving bodies . . . . Movement vectors . . . Tracking . compared with dictionary patterns . . Finding of specific patterns . . specifying the kind of given patterns
HA11 HA13
. Neural networks * . Others *
JA JA00
RECOGNITION PROCESSING 		JA01 JA03 JA04 JA05 JA06 JA07 JA09
. Visual observation . Degree of similarity . . Degree of composite similarity or degree of mixed similarity . . Inner products e.g. Cos . . Number of matching pixels . . Number of mismatching pixels . Templates #*
JA11 JA13 JA14 JA16 JA18 JA20
. Recognition by use of feature values . Multi-stage collation . . Coarse and fine degrees of collation . Combinations of different types of recognition . Use of distinctive features of the entire images or parts thereof . Dynamic pattern-matching
JA22 JA24 JA25 JA26 JA28
. Categories #* . characterised by the manner of judgement . . Rejection . . for interrupting processings . Others *
KA KA00
DICTIONARY 		KA01 KA03 KA04 KA05 KA07 KA09
. Multiple dictionaries . Correction of or additions to dictionaries . . Learning . . Returning to previous dictionaries . Compression . Retrieval
KA11 KA13 KA15 KA17
. Sorting . Creating . having registration and recognition modes . Others *
LA LA00
HARDWARE 		LA01 LA03 LA04 LA05 LA06 LA07 LA08 LA09 LA10
. Higher speed . Configurations . . Analogue-digital conversion . . Image memories . . Line memories . . Shift registers . . Counters . . Address generation or addressing . . Delay means
LA11 LA12 LA13 LA14 LA15 LA17
. . Control circuits . . Synchronisation . . Parallel processing . . with a plurality of identical configurations . . . Array structures . Others *
MA MA00
OTHER CHARACTERISTICS * 		MA01 MA03 MA05 MA07
. Image-quality evaluation . Image correction . Symmetry . Clustering
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