Author:De Villiers, Johan PDate:Jun 2010Improving the quality of an image increases the probability, speed and accuracy with which possible objects of interest can be located and identified. Image sharpening, in particular, can correct for soft focus and strengthen the outlines of ...Read more
Author:Dorasamy, Kribashnee; Webb-Ray, Leandra; Tapamo, J-RDate:Dec 2016Overcoming small inter-class variation when fingerprints have missing singular points (SPs) is one of the current challenges faced in fingerprint classification, since class information is scarce. Grouping the orientation fields to form ...Read more
Author:Duvenhage, B; Bouatouch, K; Kourie, DDate:Jun 2010From the literature, it is known that backward polygon beam tracing and other light volume methods are well suited to gather path coherency from specular scattering surfaces. This is of course useful for modelling and efficiently simulating ...Read more
Author:Duvenhage, B; Bouatouch, K; Kourie, DGDate:May 2011Backward polygon beam tracing methods, that is beam tracing from the light source (L), are well suited to gather path coherency from specular (S) scattering surfaces. These methods are useful for modelling and efficiently simulating caustics ...Read more
Author:Duvenhage, B; Delport, JP; De Villiers, JDate:Jun 2010Image registration forms the basis of many computer vision tasks. The Lucas-Kanade image registration algorithm is known to efficiently solve the sub-problem of rigid image registration. It is therefore often used in image stabilisation ...Read more
Author:Duvenhage, BDate:Oct 2006This paper describes an innovative “physically based” spectral lighting, material and camera model that is based on radiometry theory and is an expansion of the historical fixed pipeline graphics system. There are two render target modes of ...Read more