Browsing Computer Engineering by Title
Now showing items 1-20 of 24
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Contributions into holistic human action recognition.
(2020)In this thesis we holistically investigate the interpretation of human actions in both still images and videos. Human action recognition is currently a research problem of great interest both in academia and industry due ... -
Correcting inter-sectional accuracy differences in drowsiness detection systems using generative adversarial networks (GANs)
(2020)oad accidents contribute to many injuries and deaths among the human population. There is substantial evidence that proves drowsiness is one of the most prominent causes of road accidents all over the world. This results ... -
Energy efficient medium access protocol for DS-CDMA based wireless sesor networks.
(2012)Wireless Sensor Networks (WSN), a new class of devices, has the potential to revolutionize the capturing, processing, and communication of critical data at low cost. Sensor networks consist of small, low-power, and ... -
Enhanced spectral efficiency schemes for space-time block coded spatial modulation.
(2019)The ever-growing demand for high data rate, low latency and energy efficient transmission schemes has seen an increasing popularity of multiple-input multiple-output (MIMO) scheme. One such scheme is the orthogonal space-time ... -
Error performance analysis of cross QAM and space-time labeling diversity for cross QAM.
(2019)Abstract available in the PDF -
Error performance analysis of n-ary Alamouti scheme with signal space diversity.
(2018)In this dissertation, a high-rate Alamouti scheme with Signal Space Diversity is developed to improve both the spectral efficiency and overall error performance in wireless communication links. This scheme uses high ... -
Facial expression recognition using covariance matrix descriptors and local texture patterns.
(2017)Facial expression recognition (FER) is a powerful tool that is emerging rapidly due to increased computational power in current technologies. It has many applications in the fields of human-computer interaction, psychological ... -
Feature regularization and learning for human activity recognition.
(2018)Feature extraction is an essential component in the design of human activity recognition model. However, relying on extracted features alone for learning often makes the model a suboptimal model. Therefore, this research work ... -
Fingerprint identification using distributed computing.
(2012)Biometric systems such as face, palm and fingerprint recognition are very computationally expensive. The ever growing biometric database sizes have posed a need for faster search algorithms. High resolution images are ... -
Flat fingerprint classification using a rule-based technique, based on directional patterns and similar points.
(2016)Abstract available in PDF file. -
Fusion of time of flight (ToF) camera's ego-motion and inertial navigation.
(2013)For mobile robots to navigate autonomously, one of the most important and challenging task is localisation. Localisation refers to the process whereby a robot locates itself within a map of a known environment or with ... -
Gaussian mixture model classifiers for detection and tracking in UAV video streams.
(2017)Manual visual surveillance systems are subject to a high degree of human-error and operator fatigue. The automation of such systems often employs detectors, trackers and classifiers as fundamental building blocks. Detection, ... -
Granting privacy and authentication in mobile ad hoc networks.
(2012)The topic of the research is granting privacy and authentication in Mobile Ad Hoc Networks (MANETs) that are under the authority of a certificate authority (CA) that is often not available. Privacy is implemented in the ... -
Hybrid generalized non-orthogonal multiple access for the 5G wireless networks.
(2018)The deployment of 5G networks will lead to an increase in capacity, spectral efficiency, low latency and massive connectivity for wireless networks. They will still face the challenges of resource and power optimization, ... -
Hybrid generalized non-orthogonal multiple access for the 5G wireless networks.
(2018)The deployment of 5G networks will lead to an increase in capacity, spectral efficiency, low latency and massive connectivity for wireless networks. They will still face the challenges of resource and power optimization, ... -
Improvements of local directional pattern for texture classification.
(2017)The Local Directional Pattern (LDP) method has established its effectiveness and performance compared to the popular Local Binary Pattern (LBP) method in different applications. In this thesis, several extensions and ... -
Investigation of feature extraction algorithms and techniques for hyperspectral images.
(2017)Hyperspectral images (HSIs) are remote-sensed images that are characterized by very high spatial and spectral dimensions and nd applications, for example, in land cover classi cation, urban planning and management, ... -
Investigation of virtual learning behaviour in an Eastern Cape high school biology course.
(2003)Transformation in education over the decades has failed to keep abreast of the rapidly advancing technological environment of modern society. This implies that curricula, learning paradigms and tools employed by educational ... -
Parallel patch-based volumetric reconstruction from images.
(2014)Three Dimensional (3D) reconstruction relates to the creating of 3D computer models from sets of Two Dimensional (2D) images. 3D reconstruction algorithms tend to have long execution times, meaning they are ill suited ... -
Power-line insulator defect detection and classification.
(2018)Faulty insulators may compromise the electrical and mechanical integrity of a power delivery system, leading to leakage currents owing through line supports. This poses a risk to human safety and increases electrical ...