14 research outputs found
Improved Pattern Matching Algorithm
No full textPattern matching problem aims to search the most similar pattern or object by matching to an instance of that pattern in a scene image. In order to address the issue of finding an object in the target image efficiently, the most distinctive features are computed from the query pattern and need to be searched in the scene image. The scene image is logically divided into a number of candidate windows which are then to be matched with the query pattern. Due to repeated matching of the query pattern with local candidate windows, the pattern matching process requires a large amount of space in memory as well as it needs to be executed fast. Thus, pattern matching algorithms need to be memory efficient and as fast as possible. This paper makes an attempt to deal with these issues by presenting two effective pattern matching algorithms, namely, strip subtraction and strip division. The efficacy of the proposed pattern matching algorithms is tested on two databases, viz. a local database and MIT-CSAIL database containing random objects. The experimental results are proved to be computationally efficient ones while the proposed algorithms are compared with some existing algorithms possessing a uniform experimental setup
HPV guided object tracking: Theoretical advances on fast pattern matching technique
No full textSummaryPattern matching is a fundamental machine vision problem that deals with searching an object in a comparatively large scene. It can use to solve many vision problems ranging from typical human detection to searching defective parts in industrial automation. This paper reports a fast pattern matching technique which makes use of cumulative subtraction and cumulative division operations based on Image Integral model. The idea is to use both the cumulative subtraction and division operations to evaluate the image values on a very small rectangular region of the image scene as well as on the input pattern to be searched for. Image values are transformed to Haar Projection Values (HPVs) using Haar transform in order to achieve pattern matching on sliding window of the image scene. Computation of HPV needs seven arithmetic operations, including two addition and five subtraction operations, which are found to be same as that of Image Integral technique. Besides, the proposed pattern matching technique is identified as computationally effective in terms of both time and memory
Searching a pattern in token scene image via multi-variant symmetric pattern matching technique
No full text
Fingerprint matching using graph structure based symmetric ternary pattern
No full textCreative Commons licenseFingerprint matching, one of the sophisticated biometric authentication techniques, is popular for its easy implementation,
persistent nature of the fingerprint and non-similarity nature of two fingerprints. Uniqueness of fingerprint is characterized by
distinctive features present in fingerprint image. This paper presents a novel relational descriptor based fingerprint matching process using pattern matching concept called Multi-Variant Symmetric Ternary Pattern (MVSTP). Orientation and illumination invariant local descriptor MVSTP extract distinct features from fingerprint image by referring non-overlapping neighbor pixels in symmetric way with respect to source pixel positioned at the center of 5×5 pixel area. After feature extraction from query fingerprint image and stored fingerprint images in the database, features are compared to find similarity match. MVSTP aims to increase fingerprint matching accuracy in contrast with other processes by addressing challenges related to fingerprint pattern’s appearance variation with slight orientation and the variations present in image properties. The computational proficiency of the proposed fingerprint matching process is tested on FVC 2004 database and local database of fingerprint images with higher note of matching accuracy, manifesting its intensity in the process
Intel 8085 Microprocessor Simulation Tool OneX Simulator
No full textIn spite of the advancement in computer architecture and availability of microprocessors (ex. Intel Core i7 etc.) with speed thousand times greater, microprocessor 8085 is still widely used in academia for education and research purposes. To make the microprocessor 8085 more accessible and portable, many simulators for the same have been introduced over the past years with various level of user friendliness. This paper proposes a simple yet powerful enhanced simulator, namely OneX which is capable of real time code parsing, error handling and label parsing for different addresses. Proposed software also addresses few flaws present in the earlier version of 8085 microprocessor software. The latest copy of the software is available at (https://github.com/Pronoy999/Project-OneX
Pure Mafia - a novel about child labour, plus thesis and commentary
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This PhD in Creative Writing consists of three parts. The first part is a full-length novel, approximately 80K words, entitled Pure
Mafia. It is a drama about child labour and the Pakistani “carpet mafia”. This is
intertwined with the story of an unhappily married man undergoing a midlife crisis who
has an affair with a younger woman; the latter is instrumental to the main plot about
child labour. The book’s second main theme is British Pakistanis. An overarching theme
is abuse and exploitation, both personal and global, but ultimately of redemption and
renewal. The story is set in 2010/2011, mainly in London, England, with a middle
section in Lahore, Pakistan. The second part is an academic thesis, approximately 20K words, entitled Cheap Labour = Child Labour, on the main theme of the novel, child labour. It attempts to show that child labour is an inevitable consequence of cheap labour generally, and that the only way to tackle child labour is to address cheap labour. The thesis has been consciously and deliberately written as an objective, third person, standalone document and for this reason does not mention the novel. It is partly designed to fulfil the general
PhD criterion of demonstrating scholarship and research. The third part is a subjective, first person critical commentary, approximately 15K words, on the writing of the novel and the thesis, the connection between them, and the research context; it is entitled Pure Mafia: A critical commentary. It explains why
the main thesis is on child labour, rather than on the creative process or an English
Literature thesis; however, the commentary does include in some detail an insight into
the creative process, as well as a discussion of influences and tradition of writing. The final section of the commentary summarises this entire PhD’s original
contribution to knowledge
Injeção de glicina na substância cinzenta periaquedutal dorsal facilita ou inibe a nocicepção dependendo do contexto nociceptivo
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Farmacologia.A Substância Cinzenta Periaqueductal dorsal (SCPd) é reconhecida como uma estrutura do sistema nervoso central (SNC) responsável por coordenar as funções autonômicas e comportamentais em situações de ameaça ou perigo iminente, estando bem estabelecido que sua ativação desencadeia comportamentos de defesa e inibição da dor. Porém, sabe-se que tanto na clínica, quanto em modelos experimentais, o estresse/ansiedade podem produzir tanto efeitos inibitórios quanto facilitatórios da nocicepção. Ao menos em grande parte destes estudos, tem-se dado maior ênfase ao modelo de estresse, sem levar-se em conta o nível de aversividade do estímulo nociceptivo. Assim, como a estimulação da SCPd modifica o caráter aversivo de estímulos externos, a manipulação dessa estrutura em diferentes modelos de nocicepção, com diferentes níveis de aversividade, ajudaria a compreender como o SNC pode fazer a escolha entre aumentar ou inibir a nocicepção. Nesse trabalho, a SCPd de ratos foi injetada com glicina (GLI), o que mostrou previamente produzir efeito tipo-ansiogênico progressivo (dosedependente). GLI (10-80 nmoles) facilitou e inibiu a nocicepção, dependendo da dose injetada e do teste nociceptivo empregado. GLI apenas aumentou, e na concentração mais alta testada, a nocicepção no teste de formalina na pata (mais aversivo). No teste de aversividade intermediária, formalina intra-articular, a GLI facilitou o comportamento de nocicepção nas concentrações menores (10 e 20 nmoles), porém o inibiu nas concentrações maiores (50 e 80 nmoles). No teste de aversividade menor, dor térmica escapável, a GLI apenas causou aumento da latência de retirada, ou hiponocicepção. Ambos os efeitos foram inibidos, pela coaplicação de GLI e ácido 7-cloroquinurênico ou HA966, antagonistas total e parcial, respectivamente, dos receptores GLIB. No entanto, a estricnina, antagonista do receptor GLIA aplicado na SCPd induziu os mesmos efeitos da glicina nos modelos de nocicepção e no teste do labirinto em cruz elevado causou efeito tipoansiogênico. A aplicação sistêmica, ou na SCPd de naloxona (antagonista dos receptores opióides) e de metisergida (antagonista dos receptores serotoninérgicos) preveniu as ações de GLI na SCPd. Nossos dados mostraram que existe um controle bidirecional da SCPd na nocicepção dependente da ativação local do receptor GLIB e de vias opioidérgicas e serotoninérgicas presentes em algum ponto da circuitaria modulatória da dor. O receptor GLIA demonstrou atuar de forma oposta aos receptores GLIB na SCPd. Estamos sugerindo que o estresse induzido pela glicina na SCPd juntamente com o do teste nociceptivo, aumentam a nocicepção quando esta for o principal foco de atenção. Assim, a SCPd pode ser responsável por modular a nocicepção de acordo com a demanda atencional gerada pelo foco estressor
How well do India's social service programs serve the poor?
No full textReaching India's poor calls for greatly improved social service delivery systems, better targeting of the poor, more coordination between agencies, policies aimed at income generation, and more involvement of the poor and of nongovernmental organizations. The authors of this paper found that India's social services were used relatively little by the poor. The health and education of the poor has improved but not as much for the population as a whole. The reasons that all social service programs did so little to alleviate poverty are similar. Physical access to education and health services has improved but inequalities exist because of biases in locating facilities. The access of the poor to housing, social security, and social welfare services has been limited because these services were inadequate relative to needs and because services leak to the nonpoor. Social service policies are not comprehensive enough and the quality of services is low. Issues common to the social sector delivery systems are weak management, ineffective targeting, and inflexible service delivery systems that result in a mismatch between perceived needs and services delivered. The bureaucracy is inadequate to reach the poor. Existing capacity and resources are inadequate, particularly for education and health.Health Monitoring&Evaluation,Health Economics&Finance,Poverty Assessment,Safety Nets and Transfers,Rural Poverty Reduction
