Human action recognition using spatial-temporal analysis.

Masters Degree. University of KwaZulu-Natal, Durban.In the past few decades’ human action recognition (HAR) from video has gained a lot of attention in the computer vision domain. The analysis of human activities in videos span a variety of applications including security and surveillance, entertainment, and the monitoring of the elderly. The task of recognizing human actions in any scenario is a difficult and complex one which is characterized by challenges such as self-occlusion, noisy backgrounds and variations in illumination. However, literature provides various techniques and approaches for action recognition which deal with these challenges. This dissertation focuses on a holistic approach to the human action recognition problem with specific emphasis on spatial-temporal analysis. Spatial-temporal analysis is achieved by using the Motion History Image (MHI) approach to solve the human action recognition problem. Three variants of MHI are investigated, these are: Original MHI, Modified MHI and Timed MHI. An MHI is a single image describing a silhouettes motion over a period of time. Brighter pixels in the resultant MHI show the most recent movement/motion. One of the key problems of MHI is that it is not easy to know the conditions needed to obtain an MHI silhouette that will result in a high recognition rate for action recognition. These conditions are often neglected and thus pose a problem for human action recognition systems as they could affect their overall performance. Two methods are proposed to solve the human action recognition problem and to show the conditions needed to obtain high recognition rates using the MHI approach. The first uses the concept of MHI with the Bag of Visual Words (BOVW) approach to recognize human actions. The second approach combines MHI with Local Binary Patterns (LBP). The Weizmann and KTH datasets are then used to validate the proposed methods. Results from experiments show promising recognition rates when compared to some existing methods. The BOVW approach used in combination with the three variants of MHI achieved the highest recognition rates compared to the LBP method. The original MHI method resulted in the highest recognition rate of 87% on the Weizmann dataset and an 81.6% recognition rate is achieved on the KTH dataset using the Modified MHI approach

Practices and Spaces (Location): Reflecting on the Contribution of Writing Centres for Decolonisation in Higher Education

The location of writing centres in universities has attracted attention from practitioners and researchers in the field of academic support scholarship. These writing centres, known as spaces where students discuss their writing ideas, have become part of the decoloniality discourse in South African higher education. This study adopts a mixed-method approach and builds upon Grimm's theory of transitional space to examine tutor perspectives on the contribution of writing centres' pedagogical practices and physical location to the decolonisation of education at the Durban University of Technology (DUT) and Mangosuthu University of Technology (MUT). The findings reveal that the writing centres in these contexts contribute to the decolonial agenda by employing various approaches such as multilingualism and one-on-one consultations that are sensitive to the African context. However, despite these positive contributions, it is necessary to initiate decolonial discussions that address historical past injustices. The study recommends that the creation of decolonised spaces is a complex process requiring collaborative engagement between writing centres and the university community, including management. Writing centres have an integral role to play in decolonising the university space, particularly in the South African context.

Evaluation of the new venture creation learnership programme offered by the Sector Education Training Authorities in South Africa

MBA thesis“Small, Medium, and Micro-Enterprises (SMMEs) represent an important vehicle to address the challenges of job creation, economic growth, and equity in our country. Throughout the world one finds that SMMEs are playing a critical role in absorbing labour, penetrating new markets and generally expanding economies in creative and innovative ways” (McGrath, 2005; p.6). The study assessed the “New Venture Creation (Small, Medium, and Micro Enterprises (SMME)” National Qualifications Framework (NQF) Level 2 learnership program offered by the Sector Education and Training Authorities (SETAs) namely the Services SETA (SSETA) and the Management, Engineering and Related Services (merSETA). The primary purpose of the study is to contribute towards the development of an effective new venture creation training program for entrepreneurs within South Africa (SA). A quantitative approach was therefore best suited to identify the crucial factors affecting the outcome of the above investigation. A 7-point Likert scale was used as the measuring instrument. The captured data was analysed using both descriptive and inferential statistic methods. The mode, mean, frequencies, standard deviation, Chi-square, and regression analyses were used. The key findings were that more than 90% of new ventures were created across all industry sectors since the completion of the “New Venture Creation (SMME)” learnership programme for the sample population tested. The Return on Investment (ROI) proved to be very attractive with benefits exceeding the cost of the training within a 12-month period. Overall, the research supported the claim that the “New Venture Creation (SMME)” learnership program is adding value to the development of young entrepreneurs in the sectors covered by the study. The program however does have some areas of concern that need attention, and could restrict the future growth of entrepreneurs if attention is not provided in this regard

Students’ vulnerability and perceptions of food insecurity at the university of KwaZulu-Natal

Introduction and objective: Food insecurity (FI) is an emerging and alarming problem among university students. The problem particularly affects students from poor households. The University of KwaZulu-Natal (UKZN), South Africa is likely to be no exception to experiencing student FI as more than 50% of the students are poor. In 2012, UKZN implemented a Food Security Programme (FSP) to help address this emergent challenge. Until now, there is little literature exploring the prevalence and perceptions of the FI and interventions at UKZN. The study aimed to determine students’ vulnerability to FI in terms of food access and meal frequencies, students’ perceptions of FI and its effect on academic performance. The study also aimed to determine the students’ awareness and utilisation of the FSP. Methods: A total of 500 students registered at UKZN were invited to participate using a questionnaire survey and 91.2% (n = 456) questionnaires were completed and returned. Vulnerability to FI was explored through a nine-item measure, i.e. related to the Household Food Insecurity Access Scale (HFIAS); and a one-item measure of the self-reported eating habits by the students ‘in normal circumstances’. Results and conclusion: The findings suggest that FI remains a serious challenge among university students. Using the one-item measure, vulnerability to FI was evident in 53.1% of the students, of whom 44% experienced moderate levels of vulnerability; 9.2% were highly vulnerable. There was a significant correlation between the students’ source of funding and being FI due to lack of resources (r = 0.119, p = 0.012). FI has a high potential to negatively affect students’ academic outcomes. About 64.3% of the students indicated that hunger reduced their concentration and vigour such that 27.7% had missed classes. Social stigma was attached to FI; 30% of the students preferred anonymity regarding their FI status; 37.7% showed reluctance to utilise/recommend the FSP to anyone. Recommendations are made for institutional and national responses

Unlocking the Potential of Fish to Improve Food and Nutrition Security in Sub-Saharan Africa

Approximately one-third of the global population suffering from chronic hunger are in sub-Saharan Africa (SSA). In addition to high prevalence of chronic hunger, millions of people suffer from micronutrient deficiencies. Meanwhile, there is growing consensus across scientific disciplines concurring that fish plays a crucial role in improving food and nutrition security. Therefore, the present review aims to demonstrate the role of fish and the whole fisheries sector towards securing food and nutrition security in SSA by summarizing the existing literature. Fish is a treasure store of animal protein and essential micronutrients such as zinc, iodine, calcium, and vitamins, which are essential in human nutrition and have proven to help reduce the risks of both malnutrition and non-communicable diseases. Policymakers, development agencies, and society should recognize the role that the fisheries sector can play in combatting hunger and undernutrition, especially for the poor and marginalized people in SSA

Unlocking the Potential of Fish to Improve Food and Nutrition Security in Sub-Saharan Africa

Approximately one-third of the global population suffering from chronic hunger are in sub-Saharan Africa (SSA). In addition to high prevalence of chronic hunger, millions of people suffer from micronutrient deficiencies. Meanwhile, there is growing consensus across scientific disciplines concurring that fish plays a crucial role in improving food and nutrition security. Therefore, the present review aims to demonstrate the role of fish and the whole fisheries sector towards securing food and nutrition security in SSA by summarizing the existing literature. Fish is a treasure store of animal protein and essential micronutrients such as zinc, iodine, calcium, and vitamins, which are essential in human nutrition and have proven to help reduce the risks of both malnutrition and non-communicable diseases. Policymakers, development agencies, and society should recognize the role that the fisheries sector can play in combatting hunger and undernutrition, especially for the poor and marginalized people in SSA