Isbn: 9781849962070 - symbol spotting in digital libraries: focused retrieval over graphic-rich document collections (9 risultati)

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Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Pattern recognition basically deals with the recognition of patterns, shapes, objects, things in images. Document image analysis was one of the very rst applications of pattern recognition and even of computing. But until the 1980s, research in this eld was mainly dealing with text-based documents, including OCR (Optical Character Recognition) and page layout analysis. Only a few people were looking at more speci c documents such as music sheet, bank cheques or forms. The community of graphics recognition became visible in the late 1980s. Their speci c interest was to recognize high-level objects represented by line drawings and graphics. The speci c pattern recognition problems they had to deal with was raster-to-graphics conversion (i.e., recognizing graphical primitives in a cluttered pixel image), text-graphics separation, and symbol recognition. The speci c problem of symbol recognition in graphical documents has received a lot of attention. The symbols to be recognized can be musical notation, electrical symbols, architectural objects, pictograms in maps, etc. At rst glance, the symbol recognition problems seems to be very similar to that of character recognition; - ter all, characters are basically a subset of symbols. Therefore, the large know-how in OCR has been extensively used in graphical symbol recognition: starting with segmenting the document to extract the symbols, extracting features from the s- bols, and then recognizing them through classi cation or matching, with respect to a training/learning set. 180 pp. Englisch.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. The first book to address the particular problem of symbol spotting in graphics/document image analysis and recognition.Supplies an insight into performance evaluation of spotting methods.With a Foreword by Professor Karl Tombre, Director of INRIA Nancy - G.…