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This page displays all 「FI」 in main group G06V30/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Character recognition; Recognising digital ink;Document-oriented image-based pattern recognition(scanning, transmission or reproduction of documents or the like H04N 1/00) [2022.01] | HB | CC | 5B064 | |
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Magnetic reading [2022.01] | HB | CC | 5B064 | |
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Reading of numerical formula, tables, graphs [2022.01] | HB | CC | 5B064 | |
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Combination with other devices and so on (in principle, assigned only as a secondary classification) [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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.Character recognition [2022.01] | HB | CC | 5B064 | |
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..Detection or correction of errors, e.g. by rescanning the pattern [2022.01] | HB | CC | 5B064 | |
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Entering or specifying of correct characters by operators [2022.01] | HB | CC | 5B064 | |
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Matching several recognition results, e.g. matching the results of recognition processes performed several times, or matching recognition results produced by multiple recognition means [2022.01] | HB | CC | 5B064 | |
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Reading of spare areas, e.g. correspondence with phonetic kana characters [2022.01] | HB | CC | 5B064 | |
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characterised by the display of recognition results [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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..Image acquisition [2022.01] | HB | CC | 5B029 | |
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...related to reading areas [2022.01] | HB | CC | 5B029 | |
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Designation of reading areas [2022.01] | HB | CC | 5B029 | |
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.Instructions of reading areas [2022.01] | HB | CC | 5B029 | |
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Segmentation of reading areas [2022.01] | HB | CC | 5B029 | |
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.Segmentation of character lines [2022.01] | HB | CC | 5B029 | |
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Merging of reading areas, e.g. input of the images acquired by multiple CCDs [2022.01] | HB | CC | 5B029 | |
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Others [2022.01] | HB | CC | 5B029 | |
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...Reading of characters with special features [2022.01] | HB | CC | 5B029 | |
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Reading of magnetic, electrostatic characters [2022.01] | HB | CC | 5B029 | |
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Reading of embossed or engraved characters [2022.01] | HB | CC | 5B029 | |
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Reading of colour images [2022.01] | HB | CC | 5B029 | |
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Others [2022.01] | HB | CC | 5B029 | |
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...using hand-held instruments; Constructional details of the instruments [2022.01] | HB | CC | 5B029 | |
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...using a slot moved over the image; using discrete sensing elements at predetermined points; using automatic curve following means [2022.01] | HB | CC | 5B029 | |
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...Aligning or centering of the image pick-up or image-field [2022.01] | HB | CC | 5B029 | |
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...Segmentation of character regions [2022.01] | HB | CC | 5B029 | |
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..Image preprocessing [2022.01] | HB | CC | 5B029 | |
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...Quantising the image signal [2022.01] | HB | CC | 5B029 | |
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Quantisation in general [2022.01] | HB | CC | 5B029 | |
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.using the maximum or the minimum value [2022.01] | HB | CC | 5B029 | |
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.using histograms [2022.01] | HB | CC | 5B029 | |
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Digital quantisation [2022.01] | HB | CC | 5B029 | |
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Multi-value conversion, normalisation of the density [2022.01] | HB | CC | 5B029 | |
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Correction of the background levels, e.g. white level follower [2022.01] | HB | CC | 5B029 | |
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.Shading correction [2022.01] | HB | CC | 5B029 | |
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Others [2022.01] | HB | CC | 5B029 | |
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...Noise filtering [2022.01] | HB | CC | 5B029 | |
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...Normalisation of pattern dimensions [2022.01] | HB | CC | 5B029 | |
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...Smoothing or thinning of the pattern;Skeletonisation [2022.01] | HB | CC | 5B029 | |
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..Extraction of features or characteristics of the image [2022.01] | HB | CC | 5B064 | |
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Extraction of the features of character patterns [2022.01] | HB | CC | 5B064 | |
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.Extraction of the features of strokes, e.g. the center line of a character [2022.01] | HB | CC | 5B064 | |
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.Extraction of the features of background, e.g. peripheral features [2022.01] | HB | CC | 5B064 | |
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.Extraction of the features of character outlines [2022.01] | HB | CC | 5B064 | |
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Extraction of the supplementary features of images, which are useful for character recognition, e.g. character reference lines, size of character images, character modification [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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...by coding the contour of the pattern [2022.01] | HB | CC | 5B064 | |
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...by analysing segments intersecting the pattern [2022.01] | HB | CC | 5B064 | |
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...by deriving mathematical or geometrical properties from the whole image [2022.01] | HB | CC | 5B064 | |
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..Recognition using electronic means [2022.01] | HB | CC | 5B064 | |
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Overlapping methods [2022.01] | HB | CC | 5B064 | |
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For recognition of Kanji characters [2022.01] | HB | CC | 5B064 | |
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On-line types [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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...using simultaneous comparisons or correlations of the image signals with a plurality of references [2022.01] | HB | CC | 5B064 | |
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....References adjustable by an adaptive method, e.g. learning [2022.01] | HB | CC | 5B064 | |
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...using sequential comparisons of the image signals with a plurality of references [2022.01] | HB | CC | 5B064 | |
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characterised by the structures of recognition dictionaries [2022.01] | HB | CC | 5B064 | |
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.having plural recognition dictionaries or regionally-segmented recognition dictionaries [2022.01] | HB | CC | 5B064 | |
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characterised by methods to create or to correct recognition dictionaries [2022.01] | HB | CC | 5B064 | |
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having tables complementing recognition dictionaries, e.g. tables of similar characters [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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....the selection of the next reference depending on the result of the preceding comparison [2022.01] | HB | CC | 5B064 | |
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..Arrangements for recognition using optical reference masks, e.g. holographic masks [2022.01] | HB | CC | 5B064 | |
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..Combination of acquisition, preprocessing or recognition functions [2022.01] | HB | CC | 5B064 | |
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..characterised by the type of writing [2022.01] | HB | CC | 5B064 | |
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...of characters separated by spaces [2022.01] | HB | CC | 5B064 | |
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...of printed characters having additional code marks or containing code marks [2022.01] | HB | CC | 5B029 | |
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...of cursive writing [2022.01] | HB | CC | 5B064 | |
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...of three-dimensional handwriting, e.g. writing in the air [2022.01] | HB | CC | 5B064 | |
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..characterised by the processing or recognition method (segmentation of character regions G06V 30/148) [2022.01] | HB | CC | 5B064 | |
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...characterised by processing methods [2022.01] | HB | CC | 5B064 | |
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Determining several hypotheses over the courses of subsequent processes, e.g. major classification, multi-stage matching [2022.01] | HB | CC | 5B064 | |
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Determining several hypotheses in preprocessing, e.g. determining several candidate positions for character segmentation based on recognition results [2022.01] | HB | CC | 5B064 | |
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Sending feedback, e.g. re-reading or re-segmenting by use of recognition results [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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...characterised by extraction of features [2022.01] | HB | CC | 5B064 | |
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performing region segmentation [2022.01] | HB | CC | 5B064 | |
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creating directional feature plane [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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...characterised by matching of features [2022.01] | HB | CC | 5B064 | |
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characterised by the calculation of distance/similarity operations [2022.01] | HB | CC | 5B064 | |
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by dynamic programming (DP) matchings, relaxation matchings [2022.01] | HB | CC | 5B064 | |
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using coordinate transformation, e.g. affine transformation, non-linear transformation [2022.01] | HB | CC | 5B064 | |
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Others [2022.01] | HB | CC | 5B064 | |
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...Division of the character sequences into groups prior to recognition; Selection of dictionaries [2022.01] | HB | CC | 5B064 | |
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....using graphical properties, e.g. alphabet type or font [2022.01] | HB | CC | 5B064 | |
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....using linguistic properties, e.g. specific for English or German language [2022.01] | HB | CC | 5B064 | |
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....Judgement as to whether characters used are lowercase letters or uppercase letters[2022.01] | HB | CC | 5B064 | |
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....Judgement on the types of characters used, e.g. whether characters used are hiragana characters or katakana characters[2022.01] | HB | CC | 5B064 | |
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..Techniques for post-processing, e.g. correcting the recognition result [2022.01] | HB | CC | 5B064 | |
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...using context analysis, e.g. lexical, syntactic or semantic context [2022.01] | HB | CC | 5B064 | |
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...Characterized by the structures of glossaries, e.g. multiple glossaries, hierarchical glossaries[2022.01] | HB | CC | 5B064 | |
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...Characterized by the ways to check in glossaries[2022.01] | HB | CC | 5B064 | |
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...Characterized by the ways to create or revise glossaries[2022.01] | HB | CC | 5B064 | |
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..specially adapted to the type of the alphabet, e.g.Latin alphabet [2022.01] | HB | CC | 5B064 | |
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..based on the type of data [2022.01] | HB | CC | 5B064 | |
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...Images containing characters for discriminating human versus automated computer access [2022.01] | HB | CC | 5B064 | |
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...Music notations [2022.01] | HB | CC | 5B064 | |
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..Digital ink [2022.01] | HB | CC | 5B064 | |
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.Document-oriented image-based pattern recognition [2022.01] | HB | CC | 5B029 | |
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..Analysis of document content (recognition of printed characters based on code marks G06V 30/224) [2022.01] | HB | CC | 5B029 | |
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...Layout analysis of documents structured with printed lines or input boxes, e.g. business forms or tables [2022.01] | HB | CC | 5B029 | |
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...Classification of content, e.g. text, photographs or tables [2022.01] | HB | CC | 5B029 | |
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...Extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics or text [2022.01] | HB | CC | 5B029 | |
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...Extracting the logical structure, e.g. chapters,sections or page numbers; Identifying elements of the document, e.g. authors [2022.01] | HB | CC | 5B029 | |
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...Document matching, e.g. of document images [2022.01] | HB | CC | 5L096 | |
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..based on the type of document [2022.01] | HB | CC | 5B064 | |
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...Technical drawings; Geographicalmaps [2022.01] | HB | CC | 5B064 | |
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...Postal images, e.g. labels or addresses on parcels or postal envelopes [2022.01] | HB | CC | 5B064 | |