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A Fuzzy Sign Model for Pakistani Sign Language Recognition

Thesis Info

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Author

Kausar, Sumaira

Program

PhD

Institute

National University of Sciences & Technology

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2014

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/2558/1/3091S.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727684333

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Sign language is the language of visual gestures that are mainly used as a communication tool by deaf community. Sign languages use visual pattern that are used to communicate rather than acoustic patterns that are used in verbal communication. Sign language can be a benchmark for gesture recognition system as it is the most structured and developed form of gestures. Automated Sign Language Recognition (SLR) has very effective uses in many real world domains. There are many applications of SLR in the field of robot control, interactive learning, appliances control, virtual reality, simulations, games, industrial machine control, and many more apart from its significance for hearing impaired community. Sign language is not an international language as sign languages are not uniform throughout the world. Like verbal languages, sign languages also differ from region to region and country to country. Pakistani Sign Language (PSL) is a visual-gestural language that came out as a blend of urdu, national language of Pakistan, and other regional languages. The thesis presents a novel, robust, reliable, systematic and consistent system for static PSL recognition. The thesis is based on the empirical evaluation of different potential sign descriptors. The pragmatic approach has lead to a mathematical sign model that has given convincing performance for PSL recognition in terms of accuracy. The polynomial parameterization is proposed as the sign model for PSL recognition. The inherent uncertainty of the domain of sign language demands a classification tool that respects this uncertainty. Because of this very reason, the fuzzy inference got the prominent lead when experimentally compared with other competing classifiers. The main contributions of the thesis are: the development of PSL dataset, robust and efficient sign descriptor and a fuzzy rule based inference model as classifier. There is no standard dataset available for PSL, so dataset for a subset of static signs of PSL is developed for the thesis. An empirical mathematical sign model is presented that has shown its supremacy when analyzed in comparison with other potential sign descriptors. This mathematical model defines every sign of xii the PSL dataset as a polynomial parametric model. For the classification of an uncertain domain like SLR, the conventional classifiers could not come up with sound results. So a fuzzy rule base is proposed for PSL recognition based on polynomial parameters of every individual sign. The meticulous statistical analysis of the proposed PSL Fuzzy Model (PSL-FM) has shown very convincing results.
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خان بہادر ظفرحسین خان

خان بہادر ظفر حسین خاں
دوسرا حادثہ بہادر ظفر حسین خاں کی وفات کا ہے، وہ بھی اس علمی بزم کی یادگار تھے، اس لیے ان کے تعلقات بھی دارالمصنفین سے دیرینہ تھے، وہ انسپکٹر آف اسکولس کے عہدہ پر ممتاز تھے، اس سے ریٹائر ہونے کے بعد کچھ دنوں تک شیعہ کالج کے پرنسپل رہے، ادھر عرصہ سے عزلت نشینی کی زندگی بسر کررہے تھے، مگر تالیف و تصنیف کا سلسلہ آخر تک جاری رہا، ان کا خاص موضوع فلسفہ تھا اور اس کی تاریخ پر ان کی نظر بہت وسیع تھی، اس موضوع پر ان کی کئی تصانیف ہیں، ان کی ایک تصنیف مقالہ روسو عرصہ ہوا اور دوسری مال و مشیت ابھی چند سال ہوئے دارالمصنفین سے شائع ہوئی تھی، آخرالذکر کتاب پر ان کو ساہتیہ اکیڈمی سے پانچ ہزار انعام ملا تھا، انجمن ترقی اردو ہند سے بھی ان کی بعض فلسفیانہ تصانیف شائع ہوئیں، اﷲ تعالیٰ دونوں خدام علم کو مغفرت فرمائے۔
(شاہ معین الدین ندوی، اگست ۱۹۶۱ء)

زر اور معاوضۂ زر: سرمایہ دارانہ اور اسلامی نظام معیشت کے تناظر میں تجزیاتی مطالعہ

Money and its Compensation: An Analysis with Respect to Capitalism and Islamic Economic System In trade and commerce, money has remained the backbone of the business and trade. From the beginning to the end, money is an indispensable part of every economic activity. For this importance, money is treated as a factor of production. But the question is what is meant by money and whether the value of money can be recognized as a land, house, shop, car, bungalow and merchandise goods? And then what is the status if it is in the form of interest and it is linked to inflation? The research article underlines the key aspect regarding money and its compensation in the perspective of capitalistic and Islamic economic system. The qualitative and analytical approach was applied in this article. A literature review concluded that time value of money in capitalistic economy is unlimited while the Islamic economic system does not recognize its value in form of interest and with the association of inflation rate. It is recommended that business to be done on a profit and loss basis, rather than on debt and interest and instead of linking money to the inflation rate, alternatives should be proposed, for example if a person wants to take the loan, he should be given what he needs on cost plus profit basis.

Studies on Vegetation Structure and Species Diversity of Sathan Gally, District Mansehra

This study was designed for the first phytosociological exploration of the floristic exploration of Sathan Gally, District Mansehra, Pakistan. The study area, part of the Western Himalayas, shows rich floristic diversity. In this investigation, an effort was made to document the phyto diversity and vegetation structure of the area by using quadrat method and standard phytosociological tools.A sum of 35 sampling sites were selected randomly for vegetation analysis and 20 quadrats were laid down for herbs, 10 for shrubs and 5 for trees at each sampling site. The study area was visited frequently during flowering seasons of 2013 and 2014. Plant species were collected from a range of localities, identified, preserved and deposited in the Herbarium of Hazara University, Mansehra. The current investigation was conducted to explore the floristic diversity and vegetation structure in context of environmental gradients of investigated area.A total of 170 plants species, belonging to 154 genera of 73 families were recorded in 35 stands. Angiosperms were represented by 92.85%, Gymnosperms by 2.97% and Pteridophytes by 2.16% species. The leading family was Asteraceae represented by 20 species, followed by Rosaceae by 14 species, Poaceae by 12 species, Lamiaceae by 10, Polygonaceae by 5, Primulaceae by 4 species and Caryophyllaceae and Moraceae by an equal sharing of three species each. TWINSPAN multivariate classification and ordination method by CANOCO software which is being used in most of the phytosociological surveys across the world, was applied. TWINSPAN identified six plant communities viz., Pteris-Urtica-Pinus, Pinus-DigitariaSarcococca, Dryopteris-Cedrus-Pinus, Pinus-Cedrus-Indigofera, Pinus-AbiesViburnum and Themeda-Indigofera-Ailanthus. The phytosociological attributes like density, frequency, cover, importance values index, leaf size spectra, life form, index of diversity, species richness and species maturity were recorded. Microphyll contributing 40.47% species were leading leaf spectra class followed by Mesophyll containing 26.78% species, Nanophyll by 24.4% species, Macrophyll and Leptophyll 4.14% species by each. Therophytes were found as leading life form class of the area contributing 30.35% species, followed by Hemicryptophytes 20.23%, Megaphanerophytes 16.66%, Geophytes and Nanophanerophytes by 12.5%, and Chamaephytes by 7.14% species. The Reserved forest showed rich floristic diversity as compared to Guzara forest. In the current study a total of 127 plants species consisting of 59 common and 68 different were found in 13 stands of reserved forest. Angiosperms were represented by 118 (92.91%), plant species Pteridophytes 5(3.93%) species and Gymnosperms 4 (3.14%) species were recorded in Reserved forest. Only single species of climber was documented. The dominant family was Asteraceae (13 species, 10.7%) followed by Labiateae (10 species, 7.75%), Poaceae and Rosaceae (8 species, 6.2%) each, Polygonaceae and Pteridaceae by (5 species, 3.87%) each. Four different plant communities were recognized by TWINSPAN in Reserved forest. A total of 103 plant species of 55 families including 61 common in both forest types and 42 species different to Reserved Forest. These plant species were documented from 22 sampling stands. Angiosperms by (92.3%) plant species Gymnosperms (2.88%) and Pteridophytes (4.8%) were recorded. The dominant family was Poaceae by 11 plant species followed by Asteraceae and Rosaceae each represented by 10 species and Pteridaceae by five plant species. Three plant communities were recognized in Guzara forest by TWINSPAN. The study revealed that the indigenous peoples of the area exploited86 (51.19%) species as traditional medicinal plants, 136 (80.95%) species for fodder, 48 (28.57%) for fuel wood, 28 (16.66%) for timber woods, 07 (4.16%) forwild vegetable and 02 (1.19%) for ethno-veterinary therapies. Similarly, 17 (10.11%) species for wild edible fruits, 2 (1.19%) species for making agricultural tools, 1 (0.59%) species for fencing field borders. It was observed that the local inhabitants used plant resources for single and multiple purposes. Palatable flora was also documented and it showed that 79.16% of the total recorded flora were grazed by goat, cow, sheep and buffalo in the study area while 20.83% flora was found non-palatable. This study will assist ecologists, botanists, taxonomist, conservationists and policy makers to manage the current statusof plants. The present investigation will also serve as baseline for future researches on the Himalaya Regions.