基于Hough直线检测的深度图像配准方法   总被引：1，自引：0，他引：1  

阿布来提·依布拉音  王治强  刘薇  高慧婷 《中国科学院研究生院学报》2013,30(1):112-116

针对传统的图像配准方法中寻找图像之间点对应关系这一难点问题,提出一种基于Hough直线检测的深度图像配准方法.利用Hough变换检测深度图像上的直线,确定不同视点图像上直线之间的对应关系.根据对应直线三维空间上的方向向量确定两幅图像之间的刚体变换参数.最后用模拟深度图像验证方法的有效性并给出三维重建结果.  相似文献   

Enhancing employability through industrial training in the Malaysian context     

Stefanie Pillai  Mahmud H. Khan  Ida Syahirah Ibrahim  Sharmane Raphael 《Higher Education》2012,63(2):187-204

This study discusses the industrial training programme at the University of Malaya in Malaysia, specifically the issues that need to be addressed in order to enhance the employability skills of graduates. Findings from the feedback obtained from trainees and organizations in the 2008/2009 academic session were examined in terms of the extent to which trainees felt they were prepared for their training, and the extent to which the tasks given to them during their training were appropriate. Further, trainees’ self-rating of particular skills and industry’s rating of the trainees were also examined. The feedback is discussed in the context of the need to equip graduates with employability skills, an issue facing Higher Education Providers worldwide. The findings indicate that most of the students were prepared to face the world of work. However, there were several issues which needed attention. These included the need to address the possible mismatch between the tasks assigned to trainees and their areas of study, and the need to enhance English language competency and particular soft skills throughout their degree programme. Continuous input from industry is also necessary to ensure that the training benefits all parties and contributes to the employability skills of trainees.  相似文献   

Do children with reading difficulties benefit from instructional game supports? Exploring children's attention and understanding of feedback     

Asimina Vasalou  Laura Benton  Seray Ibrahim  Emma Sumner  Nelly Joye  Elisabeth Herbert 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(6):2359-2373

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The Potentials of Using Mobile Technology in Teaching Individuals with Learning Disabilities: A Review of Special Education Technology Literature     

Adel Ibrahim M Qahmash 《TechTrends》2018,62(6):647-653

Within the literature, a respectful number of studies related to the use of assistive technologies for special education, resulting in an enormous agenda that encompasses various types of assistive technology applied across disabilities in different types of curricula. These disabilities include, but are not limited to: learning disabilities, mild, moderate and severe mental retardation, speech and communication disorders, hearing and speaking disabilities, and autism Hence, under the intertwined and overlapping umbrellas of assistive technologies and special education, mobile technology finds its promising, new spot on the surface of emerging assistive technologies in the field of special education. This paper addresses the potentials of using mobile technology in teaching individuals with developmental disorders based on current literature.  相似文献   

Jordanian student teachers' perceptions of teaching writing in kindergartens during their field training experience   总被引：1，自引：1，他引：0  

Fathi Ihmeideh  Akram Al‐Basheer  Ibrahim Al‐Momani 《欧洲师范教育杂志》2008,31(4):403-417

The purpose of the study was to examine student teachers' perceptions of teaching writing in kindergartens and to identify to what extent the cooperating teachers influence the student teachers' perceptions. To achieve the research aims, a 31‐item questionnaire was developed by the researchers and administered to 50 student teachers and their cooperating teachers. The questionnaire was administrated to both groups as a pre‐test and to student teachers as a post‐test. The results of the study revealed that student teachers were more likely to be emergent literacy‐oriented in their perceptions of teaching writing than they were to the reading readiness philosophy. Furthermore, the influence of the cooperating teachers was insignificant as the student teachers' perceptions of teaching writing developed earlier were more stable and difficult to alter later. In light of these findings the researchers addressed a number of suggestions and recommendations.  相似文献   

COBRA framework to evaluate e-government services: A citizen-centric perspective     

Ibrahim H. Osman  Abdel Latef Anouze  Zahir Irani  Baydaa Al-Ayoubi  Habin Lee  Asım Balcı  Tunç D. Medeni  Vishanth Weerakkody 《Government Information Quarterly》2014

E-government services involve many stakeholders who have different objectives that can have an impact on success. Among these stakeholders, citizens are the primary stakeholders of government activities. Accordingly, their satisfaction plays an important role in e-government success. Although several models have been proposed to assess the success of e-government services through measuring users' satisfaction levels, they fail to provide a comprehensive evaluation model. This study provides an insight and critical analysis of the extant literature to identify the most critical factors and their manifested variables for user satisfaction in the provision of e-government services. The various manifested variables are then grouped into a new quantitative analysis framework consisting of four main constructs: cost; benefit; risk and opportunity (COBRA) by analogy to the well-known SWOT qualitative analysis framework. The COBRA measurement scale is developed, tested, refined and validated on a sample group of e-government service users in Turkey. A structured equation model is used to establish relationships among the identified constructs, associated variables and users' satisfaction. The results confirm that COBRA framework is a useful approach for evaluating the success of e-government services from citizens' perspective and it can be generalised to other perspectives and measurement contexts.  相似文献   

Modeling switched circuits based on wavelet decomposition and neural networks     

Davut Hanbay  Ibrahim Turkoglu 《Journal of The Franklin Institute》2010,347(3):607-617

In this paper, switched circuits are modeled based on wavelet decomposition and neural network. Also describes the usage of wavelet decomposition and neural network for modeling and simulation of nonlinear systems. The switched circuits are piecewise-linear circuits. At each position of switch the circuit is linear but when considered all switching positions of the circuit it becomes nonlinear. An important problem which arises in modeling switched circuit is high structural complexity. In this study, wavelet decomposition is used for feature extracting from input signals and neural network is used as an intelligent modeling tool. Two performance measures root-mean-square (RMS) and the coefficient of multiple determinations (R²) are given to compare the predicted and computed values for model validation. The evaluated R² value is 0.9985 and RMS value is 0.0099. All simulations showed that the proposed method is more effective and can be used for analyzing and modeling switched circuits. When we consider obtained performance, we can easily say that the proposed method can be used efficiently for modeling any other nonlinear dynamical systems.  相似文献   

Schematic modeling for meaningful learning of physics     

Ibrahim Halloun 《科学教学研究杂志》1996,33(9):1019-1041

Schematic modeling is presented as an epistemologic framework for physics instruction. According to schematic modeling, models comprise the content core of scientific knowledge, and modeling is a major process for constructing and employing this knowledge. A model is defined by its composition and structure and is situated in a theory by its domain and organization. Modeling involves model selection, construction, validation, analysis, and deployment. Two groups of Lebanese high school and college students participated in problem-solving tutorials that followed a schematic modeling approach. Both groups improved significantly in problem-solving performance, and course achievement of students in the college group was significantly better than that of their control peers. © 1996 John Wiley & Sons, Inc.  相似文献   

User considerations for interactive multimedia training projects     

Ibrahim Siddiq 《Performance Improvement》1999,38(10):29-33

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African philosophy for successful integration of technology in higher education     

Teklu Abate Bekele  Samuel Amponsah  Ibrahim M. Karkouti 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(6):1520-1538

Due partly to the multimodal and multiscalar nature of technology applications, there lacks theories to explain successful technology integration in teaching and learning in higher education. Such multidisciplinary theories developed primarily within Western contexts as behaviourism, cognitivism, constructivism, connectivism, collaborationism, TPACK framework and authentic learning theory have been used to underpin technology-enhanced teaching and learning globally. However, their primary focus on basic education and their sensitivity to contextual reality seem to restrict their salience and fecundity to successfully explain technology integration in higher education in the Global South, including Africa. For more contextual relevance and significance, the embodiment in curricula and pedagogy of African knowledge systems and emerging societal needs and challenges is thus critical. Drawing on Asabiyya and Ubuntu humanistic philosophies respectively from Northern and Southern Africa and Yoruba empiricist and Zara Yacob rationalist epistemologies from Western and Eastern Africa, this study proposes African philosophical perspectives to underpin technology integration in higher education. The epistemologies define the nature of student and faculty engagements and strategies, whereas the humanistic philosophies offer values that could guide ethical technology use and engagement. Technologies are conceived alternatively as knowledge banks, communication media and cognitive tools to think through and with. Implications for further research and practice are identified.

Practitioner notes

What is already known about this topic

• Multidisciplinary theories developed primarily within Western contexts are used to underpin technology-enhanced teaching and learning globally.
• Their primary focus on basic education and their sensitivity to socio-cultural and economic contextual reality restrict their salience and fecundity to successfully explain technology integration in teaching and learning in higher education in the Global South, including Africa.
• African philosophical, theoretical, conceptual and methodological thinking is critical for successful technology integration.

What this paper adds

• This study interrogated how African philosophies of humanity and knowledge could support successful technology integration in teaching and learning in Africa.
• Drawing on Asabiyya and Ubuntu philosophies, respectively, from Northern and Southern Africa, the study proposes strategies for making the oppressive faculty–student relationships rampant in African campuses more humane and emancipatory.
• Drawing on Yoruba empiricist and Zara Yacob rationalist epistemological orientations from Western and Eastern Africa, this study proposes strategies for supporting truly engaging and empowering pedagogies within technology-enhanced spaces.

Implications for practice and/or policy

• The purpose of education in successful technology-enhanced spaces needs to aim at improving student capacities and skills for further learning and to ensure full participation in practice communities within and outside higher education.
• The content of education or curriculum needs to primarily embody African/local philosophical, theoretical, conceptual and methodological thinking, as well as emerging community needs and challenges.
• The method of education and student assessment need to support and promote the cultivation of student skills and capabilities as well as values and ethics highly needed in their communities and beyond.

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