People counting system involves the process of counting and estimating the number of people in a scene. The counting system has a number of useful applications, ranging from pedestrian traffic surveillance and monitoring the number of people that enters and leaves shopping malls to commercial buildings, vehicles and a number of other security-related applications. Over the years, significant progress has been made. However, people counting systems still have not overcome a number of challenges such as occlusions, human pose and direction, multiple people detection, varying lighting and weather conditions. The aim of this research is to present an optimal solution that is invariant to the challenges. That is, the outcome of the results will not be affected by the challenges. Also, the solution will handle the trade-off between the counting accuracy and the time it takes to implement the counting process. As a result, a new background subtraction method known as single pixel method is proposed. This is where useful features are collected from each scene using frame difference method. Then, these features are reduced into single pixels. The single pixels are then used to estimate the total number of people in the scene. Furthermore, a virtual-line direction-estimation method is presented where the directions in which the people are heading are estimated prior to counting. AFRIKAANS : Mense-telstelsels behels die proses van die tel en die beraming van die aantal mense op ’n toneel. Die telstelsel het ’n aantal nuttige toepassings wat wissel van voetgangerverkeer toesig en die monitering van die aantal mense wat binnekom en verlaat tot winkelsentrums, kommersiële geboue, voertuie, en ’n aantal ander sekuriteit-verwante programme. Oor die jare is beduidende vordering gemaak. Daar is egter ’n aantal uitdagings wat mense-telstelsels nog nie oorkom het nie, soos afsluiting, menslike inhou en rigting, die opsporing van veelvoudige mense, wisselende beligting en weerstoestande. Die doel van hierdie navorsing is om ’n optimale oplossing aan te bied, wat invariant is teen die uitdagings. Met ander woorde, die uitdagings sal nie die resultate affekteer nie. Die oplossing sal ook die uitruil tussen die tel akkuraatheid en die implementeringstyd van die telproses hanteer. As gevolg hiervan, is ’n nuwe agtergrondaftrekkingsmetode, wat bekend staan as ’n enkele beeldelement metode, voorgestel. Dit is waar die nuttige funksies van elke toneel, met behulp van die raamverskilmetode ingesamel word. Dan word hierdie eienskappe in enkele beeldelemente verminder. Die enkele beeldelemente word dan gebruik om die totale aantal mense in die toneel te skat. Verder is daar van ’n virtuele-lyn rigting-skatting metode gebruik gemaak wat die rigtings waarin die mense beweeg vooraf beraam. / Dissertation (MEng)--University of Pretoria, 2013. / Electrical, Electronic and Computer Engineering / unrestricted

A dominant focus on organisational stakeholders is currently evident in both the literature and in practice since it is argued that the success of organisations is predominantly dependent on stakeholders’ perception of the organisation. This stakeholder emphasis is evident in the inclusion of a chapter on governing stakeholder relations in the King III report and the development of various stakeholder standards in South Africa, including corporate social investment, corporate governance, corporate citizenship, corporate sustainability and the triple bottom line. Despite the recognition of the importance and necessity of building and maintaining stakeholder relations in the literature, there is a dearth of research on how to actually build these relationships. The aim of this study was to address this shortcoming by proposing a generic, integrated approach to sustainable organisation-stakeholder relationship (OSR) building with strategic stakeholders whereby strategic stakeholder identification, OSR development and OSR maintenance, which are often studied independently, would be integrated in order to constitute a new unified model. This model will promote a sustainable OSR-building process for organisation-stakeholder partnership (OSP) development.The following three building blocks for such a model were proposed: a strategic communication foundation that promotes the integration of specific corporate communication functions that is practised from a two-way symmetrical communication perspective as the basis for effective OSR building; a theoretical foundation, which is an integration of Freeman’s stakeholder concept (1984) from a normative, relational viewpoint, Ferguson’s relational paradigm for public relations (1984) and Ledingham’s (2003) theory of relationship management, encapsulated by Grunig’s (1984) excellence theory, of which the proposed OSR-building model would be a pragmatic representation; and a conceptualisation of the OSR-building model where the actual phases of the OSR-building process would be proposed to provide step-by-step guidance for OSR building. This model promotes a partnership approach with strategic stakeholders, which is based on the proposition of an OSR development continuum, which implies that an OSR could grow in intensity over time, from a foundational OSR, mutually-beneficial OSR, sustainable OSR, to ultimate organisational-stakeholder partnerships (OSPs). This model was built from a corporate communication perspective, and subsequently highlighted the contribution of corporate communication in the organisation as an OSR-building function to ensure organisational effectiveness. This study provided an exploratory literature review to constitute a conceptual framework for OSR-building of which the principles of the framework would be further explored and measured in leading listed South African organisations, by means of a quantitative web-based survey and qualitative one-on-one interviews to compose an OSR-building model that provides guidance on the process of OSR building on the basis of insights from theory and practice. / Ingevolge die argument dat die sukses van organisasies hoofsaaklik afhanklik is van die persepsies wat belangegroepe oor organisasies het, word ‘n dominante fokus tans op organisatoriese belangegroepe in die literatuur en praktyk geplaas. Die fokus op belangegroepe is sigbaar in die insluiting van ‘n hoofstuk oor die bou van belangegroepverhoudings in die King III verslag asook die ontwikkeling van verskeie belangegroepstandaarde in Suid Afrika, wat korporatiewe sosiale verantwoordelikheid, korporatiewe burgerskap, korporatiewe volhoubaarheid en drievoudige eindresultaat insluit. Ten spyte daarvan dat die belangrikheid en noodsaaklikheid van die bou en behoud van belangegroepverhoudings erken word in die literatuur, is daar ‘n tekort aan navorsing oor hoe om die verhoudings te bou. Die studie poog om dié tekortkoming aan te spreek deur middel van ‘n generiese, geϊntegreerde benadering vir volhoubare organisatoriese-belangegroepvershoudings (OBV) met strategiese belangegroepe voor te stel, waar strategiese belangegroep identifikasie, OBV ontwikkeling en OBV instandhouding, aspekte wat dikwels afsonderlik bestudeer word, geintegreer word in ‘n nuwe, verenigde model. Hierdie model sal ’n volhoubare OBV verbouiingsproses voorstel vir die ontwikkeling van organisatoriese-belangegroepvennootskappe. Drie boustene word vir die model voorgestel naamlik; ‘n strategiese kommunkasie fondasie wat die integrasie van spesifieke korporatiewe kommunikasie funksies vanuit ‘n twee-rigting simmetriese kommunikasie perspektief as basis vir die effektiewe bou van OBV insluit; ‘n teoretiese fondasie wat ‘n integrasie van Freeman (1984) se belangegroepkonsep van ‘n normatiewe, verhoudingsstandpunt, Ferguson (1984) se verhoudingsparadigma vir openbare skakelwerk en Ledingham (2003) se verhoudingsbestuursteorie insluit, omhul deur Grunig (1984) se uitnemendheidsteorie, waarvan die voorgestelde OBV model ‘n praktiese voorstelling sal wees; en ‘n konseptualisering van OBV-verbouing wat die fases van die OBV proses sal stipuleer om stap-vir-stap riglyne vir die bou van OBV voor te stel. ‘n Vennootskapsbenadering met strategiese belangegroepe word voorgestel deur die model, wat gebaseer is op die proposisie van ‘n OBV ontwikkelingskontinuum, wat impliseer dat ‘n OBV oor tyd in intensiteit kan groei van ‘n basiese OBV, wedersydse voordelige OBV, volhoubare OBV tot ‘n uiteindelike organisatoriese-belangegroepvennootskap. Die model is gebou uit ‘n korporatiewe kommunikasiestandpunt, wat gevolglik die bydrae van korporatiewe kommunikasie in die organisasie as ’n OBV-verbouingsfunksie om organisatoriese effektiwiteit te verseker, beklemtoon. Die studie bied ‘n verkennende literatuurstudie om ’n konseptuele raamwerk vir OBV-verbouing daar te stel, waarvan die beginsels van die raamwerk verder verken en gemeet is in gelysde Suid-Afrikaanse organisasies deur middel van ‘n kwantitatiewe web-gebaseerde opname en een-tot-een onderhoude om ’n OBV-verbouingsmodel te ontwikkel wat riglyne vir die proses van OBV-verbouing bied, gebaseer op beide teoretiese en praktiese insigte. / Communication Science / D. Litt. et Phil. (Communication)

A dominant focus on organisational stakeholders is currently evident in both the literature and in practice since it is argued that the success of organisations is predominantly dependent on stakeholders’ perception of the organisation. This stakeholder emphasis is evident in the inclusion of a chapter on governing stakeholder relations in the King III report and the development of various stakeholder standards in South Africa, including corporate social investment, corporate governance, corporate citizenship, corporate sustainability and the triple bottom line. Despite the recognition of the importance and necessity of building and maintaining stakeholder relations in the literature, there is a dearth of research on how to actually build these relationships. The aim of this study was to address this shortcoming by proposing a generic, integrated approach to sustainable organisation-stakeholder relationship (OSR) building with strategic stakeholders whereby strategic stakeholder identification, OSR development and OSR maintenance, which are often studied independently, would be integrated in order to constitute a new unified model. This model will promote a sustainable OSR-building process for organisation-stakeholder partnership (OSP) development.The following three building blocks for such a model were proposed: a strategic communication foundation that promotes the integration of specific corporate communication functions that is practised from a two-way symmetrical communication perspective as the basis for effective OSR building; a theoretical foundation, which is an integration of Freeman’s stakeholder concept (1984) from a normative, relational viewpoint, Ferguson’s relational paradigm for public relations (1984) and Ledingham’s (2003) theory of relationship management, encapsulated by Grunig’s (1984) excellence theory, of which the proposed OSR-building model would be a pragmatic representation; and a conceptualisation of the OSR-building model where the actual phases of the OSR-building process would be proposed to provide step-by-step guidance for OSR building. This model promotes a partnership approach with strategic stakeholders, which is based on the proposition of an OSR development continuum, which implies that an OSR could grow in intensity over time, from a foundational OSR, mutually-beneficial OSR, sustainable OSR, to ultimate organisational-stakeholder partnerships (OSPs). This model was built from a corporate communication perspective, and subsequently highlighted the contribution of corporate communication in the organisation as an OSR-building function to ensure organisational effectiveness. This study provided an exploratory literature review to constitute a conceptual framework for OSR-building of which the principles of the framework would be further explored and measured in leading listed South African organisations, by means of a quantitative web-based survey and qualitative one-on-one interviews to compose an OSR-building model that provides guidance on the process of OSR building on the basis of insights from theory and practice. / Ingevolge die argument dat die sukses van organisasies hoofsaaklik afhanklik is van die persepsies wat belangegroepe oor organisasies het, word ‘n dominante fokus tans op organisatoriese belangegroepe in die literatuur en praktyk geplaas. Die fokus op belangegroepe is sigbaar in die insluiting van ‘n hoofstuk oor die bou van belangegroepverhoudings in die King III verslag asook die ontwikkeling van verskeie belangegroepstandaarde in Suid Afrika, wat korporatiewe sosiale verantwoordelikheid, korporatiewe burgerskap, korporatiewe volhoubaarheid en drievoudige eindresultaat insluit. Ten spyte daarvan dat die belangrikheid en noodsaaklikheid van die bou en behoud van belangegroepverhoudings erken word in die literatuur, is daar ‘n tekort aan navorsing oor hoe om die verhoudings te bou. Die studie poog om dié tekortkoming aan te spreek deur middel van ‘n generiese, geϊntegreerde benadering vir volhoubare organisatoriese-belangegroepvershoudings (OBV) met strategiese belangegroepe voor te stel, waar strategiese belangegroep identifikasie, OBV ontwikkeling en OBV instandhouding, aspekte wat dikwels afsonderlik bestudeer word, geintegreer word in ‘n nuwe, verenigde model. Hierdie model sal ’n volhoubare OBV verbouiingsproses voorstel vir die ontwikkeling van organisatoriese-belangegroepvennootskappe. Drie boustene word vir die model voorgestel naamlik; ‘n strategiese kommunkasie fondasie wat die integrasie van spesifieke korporatiewe kommunikasie funksies vanuit ‘n twee-rigting simmetriese kommunikasie perspektief as basis vir die effektiewe bou van OBV insluit; ‘n teoretiese fondasie wat ‘n integrasie van Freeman (1984) se belangegroepkonsep van ‘n normatiewe, verhoudingsstandpunt, Ferguson (1984) se verhoudingsparadigma vir openbare skakelwerk en Ledingham (2003) se verhoudingsbestuursteorie insluit, omhul deur Grunig (1984) se uitnemendheidsteorie, waarvan die voorgestelde OBV model ‘n praktiese voorstelling sal wees; en ‘n konseptualisering van OBV-verbouing wat die fases van die OBV proses sal stipuleer om stap-vir-stap riglyne vir die bou van OBV voor te stel. ‘n Vennootskapsbenadering met strategiese belangegroepe word voorgestel deur die model, wat gebaseer is op die proposisie van ‘n OBV ontwikkelingskontinuum, wat impliseer dat ‘n OBV oor tyd in intensiteit kan groei van ‘n basiese OBV, wedersydse voordelige OBV, volhoubare OBV tot ‘n uiteindelike organisatoriese-belangegroepvennootskap. Die model is gebou uit ‘n korporatiewe kommunikasiestandpunt, wat gevolglik die bydrae van korporatiewe kommunikasie in die organisasie as ’n OBV-verbouingsfunksie om organisatoriese effektiwiteit te verseker, beklemtoon. Die studie bied ‘n verkennende literatuurstudie om ’n konseptuele raamwerk vir OBV-verbouing daar te stel, waarvan die beginsels van die raamwerk verder verken en gemeet is in gelysde Suid-Afrikaanse organisasies deur middel van ‘n kwantitatiewe web-gebaseerde opname en een-tot-een onderhoude om ’n OBV-verbouingsmodel te ontwikkel wat riglyne vir die proses van OBV-verbouing bied, gebaseer op beide teoretiese en praktiese insigte. / Communication Science / D. Litt. et Phil. (Communication)