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Author: Marçal Rusiñol Publisher: Springer Science & Business Media ISBN: 1849962081 Category : Computers Languages : en Pages : 183
Book Description
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.
Author: Marçal Rusiñol Publisher: Springer Science & Business Media ISBN: 1849962081 Category : Computers Languages : en Pages : 183
Book Description
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.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Abstract : Effective displays require symbol sets that are customized to specific tasks and performance goals. In order to create such sets, designers must account for the effects of top-down and bottom-up attention. The current work presents a pair of experiments that examined the effects of salience and cueing in a change detection tasks within the flicker paradigm (Rensink, O'Regan and Clark, 1997). Each trial, participants either received no cue or a cue indicating which symbol would be the target. This cueing manipulation isolated top-down effects to the cued condition. Consistent with previous studies (Orchard, 2012; Steelman, Orchard, Fletcher, Cockshell, Williamson & McCarley, 2013), Study 1 found a response time benefit for low salience symbols in the cued condition. Study 2 served as a replication of Study 1, but included a background manipulation that preserved the layout of the symbols while manipulating the symbol's contrast to the background color. Results indicated a benefit for low salience symbols in the cued condition only on the black background, consistent with Study 1. However, low salience symbols showed no benefit on the gray or the white background in the cued condition, failing to support the hypothesis that low salience symbol show a cueing benefit. Chapter 5 conducted an extended analysis of the data from Study 2 using a variety of multilevel models to investigate specific symbol characteristics that may drive response times. For both uncued and cued search, eccentricity and crowding effects predicted response times. For uncued search, response times decreased as salience increased and standard deviation increased. For cued search symbol discriminability and salience predicted response times. Implications for the design of symbols and symbol sets are discussed.
Author: Wenyin Liu Publisher: Springer Science & Business Media ISBN: 3540347119 Category : Computers Languages : en Pages : 439
Book Description
This book constitutes the thoroughly refereed post-proceedings of the 6th International Workshop on Graphics Recognition, GREC 2005, held in Hong Kong, China, August 2005. The book presents 37 revised full papers together with a panel discussion report, organized in topical sections on engineering drawings vectorization and recognition, symbol recognition, graphic image analysis, structural document analysis, sketching and online graphics recognition, curves and shape processing, and graphics recognition contest results.
Author: Basab Bijoy Purkayastha Publisher: Springer ISBN: 8132220412 Category : Technology & Engineering Languages : en Pages : 254
Book Description
The book reports two approaches of implementation of the essential components of a Digital Phase Locked Loop based system for dealing with wireless channels showing Nakagami-m fading. It is mostly observed in mobile communication. In the first approach, the structure of a Digital phase locked loop (DPLL) based on Zero Crossing (ZC) algorithm is proposed. In a modified form, the structure of a DPLL based systems for dealing with Nakagami-m fading based on Least Square Polynomial Fitting Filter is proposed, which operates at moderate sampling frequencies. A sixth order Least Square Polynomial Fitting (LSPF) block and Roots Approximator (RA) for better phase-frequency detection has been implemented as a replacement of Phase Frequency Detector (PFD) and Loop Filter (LF) of a traditional DPLL, which has helped to attain optimum performance of DPLL. The results of simulation of the proposed DPLL with Nakagami-m fading and QPSK modulation is discussed in detail which shows that the proposed method provides better performance than existing systems of similar type.
Author: Shane S. Bush Publisher: Taylor & Francis ISBN: 1135423164 Category : Psychology Languages : en Pages : 553
Book Description
The text provides a lifespan developmental approach to neuropsychology. It addresses the many issues in neuropsychological assessment that differ between younger and older adults. It describes the symptoms, neuropathology, diagnostic considerations, and treatment options of common neurological disorders associated with aging. It also addresses special considerations related to geriatric neuropsychology, such as ethical issues, family systems issues, decision-making capacity, cultural consideration, and medical/medication/substance use issues. Additionally, a list of resources for the elderly and their families is also provided.
Author: Nicholas Villanueva, Jr. Publisher: McFarland ISBN: 1476671176 Category : Sports & Recreation Languages : en Pages : 229
Book Description
Examining the phenomenon of nationalism in the world of sport, this collection of new essays identifies moments when athletes became national symbols through their actions on and off the field. Since the break-up of the Soviet Union and Yugoslavia, and related global events of the 1980s and 1990s, scholars have explored how race, ethnicity, gender and sexuality shape and are shaped by nationalism and national participation. Topics include: race, golf and the struggle for social justice in South Africa; sport as a battleground within the Israel/Palestine conflict; multiculturalism and the Olympic Games; and white privilege in sport. These case studies explore the strength (and fragility) associated with national identity, and how athletes become icons for their nations.
Author: Yuli Rahmawati Publisher: CRC Press ISBN: 0429868111 Category : Mathematics Languages : en Pages : 612
Book Description
This conference proceedings focuses on enabling science and mathematics practitioners and citizens to respond to the pressing challenges of global competitiveness and sustainable development by transforming research and teaching of science and mathematics. The proceedings consist of 82 papers presented at the Science and Mathematics International Conference (SMIC) 2018, organised by the Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Indonesia. The proceedings are organised in four parts: Science, Science Education, Mathematics, and Mathematics Education. The papers contribute to our understanding of important contemporary issues in science, especially nanotechnology, materials and environmental science; science education, in particular, environmental sustainability, STEM and STEAM education, 21st century skills, technology education, and green chemistry; and mathematics and its application in statistics, computer science, and mathematics education.
Author: Marçal Rusiñol
Author: Marçal Rusiñol
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Author: John Skorupski
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Author: Wenyin Liu
Author: Basab Bijoy Purkayastha
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Author: Shane S. Bush
Author: Nicholas Villanueva, Jr.
Author: Yuli Rahmawati