Thesis (M. A.) --University of Limpopo, 2021 / This is an exploratory study conducted to assess the effectiveness of the digital migration in South Africa. This study focused on two areas of domicile, which embarked on the process of migrating in Limpopo Province i.e. Shayandima Village in Thohoyandou and Rapotokwane Village in Bela-Bela. The theories that were used to guide the study were the diffusion of innovations theory, political economic theory and media policy theory. These theories were employed to assist in assessing the process, the effectiveness and the importance of Digital Migration. The results for this study are revealed that 85% of respondents asserted that digital broadcasting is very effective and easy to use compared to the analog broadcasting systems, as it shows clear pictures, quality sound and access to more television channels. This help television viewers to get quality television programs. It was interesting to note that respondents mentioned that they did not regret migrating from analog to digital broadcasting because of the benefits and impact that the Set Top Boxes Set (STB)s have on their televisions. The findings reveal that the STBs are effective and affordable and enable to watch more television channels. There is also a need for the Department of Communication and Digital Technologies to ensure that every household in South Africa migrates to digital broadcasting system

Compressed images are used very frequently in interactive applications in digital video broadcasting. New methods increasing efficiency of the image transmission in digital video broadcasting networks are proposed. Adaptive spatial filtering methods have been proposed for enhancement of the visual perception of the compressed images. New optimalization method is based on application of the filtering algorithms on more compressed images (data size are reduced). Visual quality enhancement is processed in interactive application. Further, new compression methods JPEG2000 and H.264 for image compression have been analysed. Novel compound image compression method for standard and high spatial television resolution is proposed in the thesis.

Diploma thesis examines the form of television market in the age of digitalized terrestrial broadcasting with regard to the extent to which there can be found genre innovations, wider scale of origin countries and the placement of its own or foreign programme premieres. For this purpose, it concentrates on eight new digital channels distributed in terrestrial network; available nationwide, not monothematic and having audience share of at least around one percent. In the theoretical part, there is briefly summarized the history of the digitalization process in the Czech Republic, there are profiles of examined TV channels and thesis also presents extinct or minor digital channels shortly. For research purpose, thesis uses quantitative analysis methodology; it allows to explore larger amount of materials and achieve the general knowledge. The results consist of the comparison between the eight channels in three categories, description of the evolution of programme in the course of the time compared to the first month of broadcasting and contextual contrast using partial analysis of broadcasting of main and then only analogue available channels . The major positive aspect of the new channels is a higher degree of ambiguity genre. However, U.S. still holds important role as origin country of the programmes.