Author:De Villiers, J; Jermy, R; Nicolls, FDate:May 2014This paper presents a system to determine the photogrammetric parameters of a camera. The lens distortion, focal length and camera six degree of freedom (DOF) position are calculated. The system caters for cameras of different sensitivity ...Read more
Author:Schwegmann, Colin P; Kleynhans, Waldo; Salmon, BP; Mdakane, Lizwe W; Meyer, Rory GVDate:Jul 2016Efficient and effective ship discrimination across multiple Synthetic Aperture Radar sensors is becoming more important as access to SAR data becomes more widespread. A flexible means of separating ships from sea is ideal and can be accomplished ...Read more
Author:Meyer, Rory GV; Schwegmann, Colin P; Kleynhans, WaldoDate:Jul 2017Detections and classification of non-AIS-compliant vessels is an important ability for countries or institutions interested in MDA. SAR has been proven to be an effective method but there exists a trade-off between the area that can be imaged ...Read more
Author:Tulsi, K; Phelp, D; O'Connor, PDate:May 2014Physical model studies were conducted of a 250K DWT fully laden iron ore vessel grounding on the side slopes of the outbound channel at a major Australian port. A key deliverable of the study was to estimate the tug force required to pull the ...Read more
Author:Cooper, Antony KDate:Nov 2015This presentation discusses the differences between meanings of various geographical information definitions.Read more
Author:Aderonmu, AI; Rotimi, AH; Masonta, Moshe T; Mzyece, MDate:Nov 2012Radio Frequency (RF) spectrum is a natural resource widely used by wireless network operators to provide radio communications or transmission systems (e.g. telephone operators and TV broadcast stations). Scarcity of RF spectrums has led to ...Read more
Author:Strydom, Anria; Els, PSDate:Jun 2014Stabilised platforms are regularly integrated with vehicles in various applications such as terrain mapping and surveillance. The equipment installed on the platform is often sensitive to motion and has to be isolated from unnecessary vibrations. ...Read more
Author:Shatalov, MY; Lunin, BSDate:May 2007Simple mathematical model of vibratory gyroscopes imperfections is formulated, which includes anisotropic damping and variation of mass-stiffness parameters and their harmonics. The method of identification of parameters of the mathematical ...Read more
Author:Skosana, Vusi J; Abu-Mahfouz, Adnan MIDate:Nov 2020Wireless multimedia sensor networks (WMSNs) make possible diverse and demanding monitoring and surveillance applications. The WMSNs have to operate with significant energy, memory and processing power constraints. These constraints make video ...Read more
Author:Roux, KDate:May 2007In countries where cable infrastructure is lacking, satellite communications is often the preferred alternative to reach the mass market. Interactive video-on-demand requires a large amount of bandwidth per subscriber, making it difficult to ...Read more
Author:Zulu, Mfezeko C; Maposa, SibonginkosiDate:Oct 2018Millennium development goal 7 seeks to provide full access to basic services and the service allocation caters for all households irrespective of affordability. However, it is assumed that service delivery processes come up short, especially ...Read more
Author:Pejovic, V; Johnson, DL; Zheleva, M; Belding, EM; Lysko, Albert ADate:Jan 2014White spaces promise to revolutionize the way wireless connectivity is delivered over wide areas. However, large-scale white space networks face the problem of allocating channels to multiple contending users in the wide white space band. To ...Read more
Author:Vorster, J; Irwin, B; Van Heerden, Renier PDate:Mar 2018During the past decade, the sophistication and maturity of Enterprise-level Information Security (EIS) Standards and Systems has increased significantly. This maturity, particularly in the handling of enterprise-wide capability models, has ...Read more
Author:Squelch, ADate:Dec 1997Virtual reality (VR) has been investigated by SIMRAC and CSIR Miningtek as a means of providing an enhancement to current training methods that will lead to more effective hazard awareness training programmes. A VR training simulator developed ...Read more
Author:Bowers, N; Van Deventer, Martha JDate:Jun 2012This conference presentation discusses the authors' duties as the facilitators of the POL-SABINA Natural Products Virtual Research Environment. In summary, they facilitated the use and content population of the Natural Products Virtual Research ...Read more
Author:Kanjee, R; Bachoo, AK; Carroll, JDate:Oct 2013Adaptive Cruise Control (ACC) is a relatively new system designed to assist automobile drivers in maintaining a safe following distance. This paper proposes and validates a vision-based ACC system which uses a single camera to obtain the ...Read more
Author:Sabatta, D; Siegwart, RDate:May 2013In this paper we present a vision-based path following algorithm for a non-holonomic wheeled platform capable of keeping the vehicle on a desired path using only a single camera. The algorithm is suitable for teach and replay or leader-follower ...Read more
Author:Sabatta, DGDate:Nov 2008This paper proposes a topological mapping technique that utilises persistent SIFT features to reduce the amount of data storage required. It delivers, as an output, a topological map that lends itself well to conventional path planning ...Read more