Author:Roberts, JW; Van Aardt, JAN; Ahmed, FBDate:Jan 2011This research explores the potential benefits of fusing active and passive medium resolution satellite-borne sensor data for forest structural assessment. Image fusion was applied as a means of retaining disparate data features relevant to ...Read more
Author:Botha, Gerda N; Wessels, Gert JC; Botha, Natasha; Van Eden, BeatriceDate:Jan 2019SEM images are crucial in the characterisation of material properties. These images can be very hard to interpret without any prior knowledge of the material. This paper discusses a pre-processing method for assisting convolutional Neural ...Read more
Author:Nelufule, NthatheniDate:Mar 2019Image quality assessment plays an important role in enhancing the performance of pattern recognition systems, including biometric systems. Although, quality assessment methods have been utilized for iris recognition on adults they have not ...Read more
Author:Faniso-Mnyaka, Zimbini; Skosana, Vusi J; Nana, Muhammad A; Magidimisha, EdwinDate:Oct 2022Over the past two decades, there has been a surge of interest in the study of image quality assessment due to its broad applicability in many fields. Satellites and other remote sensing applications have been collecting vital data that is ...Read more
Author:Burke, Michael GDate:Dec 2016The ability to predict the importance of an image is highly desirable in computer vision. This work introduces an image ranking scheme suitable for use in video or image sequences. Pairwise image comparisons are used to determine image ...Read more
Author:Mdakane, Lizwe W; Kleynhans, Waldo; Schwegmann, Colin P; Meyer, Rory GVDate:Jul 2017Oil spills present a major threat to the sea ecosystem and thus need to be monitored on a regular basis. Synthetic Aperture Radar (SAR) data is well known for ocean monitoring capabilities. SENTINEL 1 (SEN1) extra wide (EW) mode data and ...Read more
Author:Stoltz, George GDate:Jan 2019A distributed camera system can consist of multiple camera groups. An image stitch is created by each group and transmitted to a central processing unit. The central processing combines all received images into an image stitch. The camera ...Read more
Author:Mdakane, Lizwe W; Kleynhans, WaldoDate:Jun 2017Oil slick events caused due to bilge leakage/dumps from ships and from other anthropogenic sources pose a threat to the aquatic ecosystem and need to be monitored on a regular basis. An automatic image-segmentation-based framework to detect ...Read more
Author:Twala, BV; Sewell, BT; Jordaan, JDate:Mar 2012The use of enzymes in industrial applications is limited by their instability, cost and difficulty in their recovery and re-use. Immobilisation is a technique which has been shown to alleviate these limitations in biocatalysis. Here we describe ...Read more
Author:Twala, BV; Sewell, BT; Jordaan, JDate:Jan 2010Immobilisation of enzymes is of considerable interest due to the advantages over soluble enzymes, including improved stability and recovery. Glucose Dehydrogenase (GDH) is an important biocatalytic enzyme due to is ability to recycle the ...Read more
Author:Bannister, MDate:Apr 2011Comparative assessment polyphenol oxidase immobilized on Dendrispheres with immobilization on Eupergit C, Eupergit C 250L and DEAE Sephadex A-25 based on enzyme loading capacity, activity, stability and recyclability.Read more
Author:Pandelani, Thanyani A; Sono, TJ; Reinecke, John D; Nurick, GNDate:Jun 2016Anti-Vehicular Landmine or under-belly Improvised Explosive Device (IED) or even a side-attack IED are found to be one of the major threats for military vehicles and their occupants. The lower extremities of the occupants are very prone to ...Read more
Author:Walwyn, D; Scholes, RJDate:May 2006The increasing shift towards external contract research income (in contrast to grant income) as the primary means of funding public research institutions and universities has extracted a high toll on these institutions and on their stakeholders. ...Read more
Author:Ribbens, H; Everitt, P; Noah, MDate:2008In South African, as is the case in most other developing countries, a significant proportion of the population walk or cycle on a daily basis to their places of work and to other destinations. Road accident casualties (fatalities and injuries) ...Read more
Author:De Villiers, GDTDate:1986This study represents a quantitative survey of the impact of the climate and weather on the activities of the building and construction industry in South Africa. Seasonal productivity problems, the seasonal provision of special facilities and ...Read more
Author:Meyer, ADate:01 Sep 2010The increase in equatorial temperatures and the presence of an ozone hole over Antarctica have caused an increase in the pole-to-equator pressure gradient with a concomitant intensification of the high-latitude westerlies (Cai et al., 2006). ...Read more
Author:Allan, DG; Harrison, JA; Navarro, RA; Van Wilgen, BW; Thompson, MWDate:Feb 1997Bird-atlas data were used in conjunction with information on the extent of commercial afforestation with alien trees in Mpumalanga Province, South Africa, to assess the effect of afforestation on the avifauna of this region. Ninety species ...Read more