H.264/AVC encoder complexity is mainly due to variable size in Intra and Inter frames. This makes H.264/AVC very difficult to implement, especially for real time applications and mobile devices. The current technological challenge is to conserve the compression capacity and quality that H.264 offers but reduce the encoding time and, therefore, the processing complexity. This thesis applies machine learning technique for video encoding mode decisions and investigates ways to improve the process of generating more general low complexity H.264/AVC video encoders. The proposed H.264 encoding method decreases the complexity in the mode decision inside the Inter frames. Results show, at least, a 150% average reduction of complexity and, at most, 0.6 average increases in PSNR for different kinds of videos and formats. / by Paula Carrillo. / Thesis (M.S.C.S.)--Florida Atlantic University, 2008. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2008. Mode of access: World Wide Web.

A research report is submitted in partial fulfilment of the requirements for the degree of Master of Arts in ICT Policy and Regulation to the Faculty of Humanities, University of the Witwatersrand, 2016 / South Africa has a nascent community television sector, which is legislated as a tier of broadcasting. This sector is important in deepening democracy, creating access to information, giving communities the space to share information, and expanding media ownership to communities beyond the public and commercial television broadcasting sectors. Since 2007, when Soweto TV was the first community television station to be licensed, the processes towards migrating analogue to digital terrestrial television have been beset with delays and the experience of the community TV sector with respect to this migration have been not well understood. The conceptual-analytical framework for this historical study of the period 2007 to 2014 drew on the key themes of sector and institutional governance including the effectiveness of policy and regulation, technological advancement, content and services. Using a constructivist methodology the key documents pertaining to broadcast digital migration were reviewed and interviews were conducted with three community TV stations, Soweto TV, Bay TV and Cape Town TV, as well as with the policy-maker, the regulator and sector experts. The findings revealed that the community television (CTV) sector was faced with problems of sector and institutional governance not being effectively addressed in legislation and regulation, stagnation as a result of lack of spectrum in the analogue television-broadcasting dispensation and limitations on content provision. Using McConnell’s 2010 framework, analysis of the data led to the conclusion that the DTTM programme has failed with respect to the community TV sector. Advances for the CTV sector will require revision to legislation and future regulation to guide the governance of the CTV sector and the digital terrestrial television migration should be concluded without further delay, in order to enable the sector to grow. Although CTV stations are providing content to communities, the opportunity for them to make a greater impact, if digital terrestrial television (DTT) is finally launched, should be prioritised as the new technology can provide them with the scope to expand their content offerings. / MT2017