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Fake news and deepfakes: A dangerous threat for 21st century information security

Author: Botha, Johannes G ; Pieterse, Heloise Date: Mar 2020 Fake news, often referred to as junk news or pseudo-news, is a form of yellow journalism or propaganda created with the purpose of distributing deliberate disinformation or false news using traditional print or online social media. Fake news ... Read more
Groth’s algorithm to detect the possible presence of landmines using changes in the reflection of plants

Author: Schmitz, P ; Pretorius, R ; Du Plooy, N ; Cooper, Antony K Date: Aug 2023 Post-conflict reconstruction includes the removal of land mines and remnants of war. The CSIR conducted field experiments to determine the impact of TNT in the soil on plants as a possible means to detect landmines. All the leaf clip readings ... Read more
Ground-based surveillance and classification radar for wildlife protection

Author: Berndt, Robert J ; Wabeke, Leon O ; Van Rensburg, Vanessa ; Potgieter, Pieter F ; Kloke, Kevin H Date: Nov 2023 Wildlife poaching has become an increasingly large problem over the last decade in southern Africa. There have consequently been worrying declines in rhinoceros population levels. As part of a multi-year effort to investigate and develop ... Read more
Optimizing and characterizing a home-built Raman spectroscopy optical system using polystyrene microspheres

Author: Thobakgale, Setumo L ; Ombinda-Lemboumba, Saturnin ; Mthunzi-Kufa, Patience ; Malabi, Rudzani Date: Feb 2019 In the recent decade, Raman spectroscopy has played a key role in photonics as a powerful method suited for detection, diagnosis and screening applications across various industrial fields. In this work, we propose a home built Raman Spectroscopy ... Read more
Structural defects in metal–organic frameworks (MOFs): Formation, detection and control towards practices of interests

Author: Ren, Jianwei ; Ledwaba, Mpho V ; Musyoka, Nicholas M ; Langmi, Henrietta W ; Mathe, Mahlanyane K ; Liao, S ; Pang, W Date: Oct 2017 Research on metal–organic framework (MOF) materials has gathered increasing interest starting from the early excitement as porous materials for gas storage down to various novel applications as catalysts, heat energy storage materials, chemical ... Read more
Traffic sign detection and classification using colour and shape cues

Author: Senekal, FP Date: Nov 2008 This paper presents a new technique for the recognition of road traffic signs. The technique is based on colour and shape analysis of a single image. It is aimed at the detection and classification of triangular traffic signs, such as warning ... Read more

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Browsing by Subject "Detection"

Browsing by Subject "Detection"

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