Scalable Unified Transform Architecture for Advanced Video Coding Embedded Systems

A novel high throughput and scalable unified architecture for the computation of the transform operations in video codecs for advanced standards is presented in this paper. This structure can be used as a hardware accelerator in modern embedded systems to efficiently compute all the two-dimensional 4 x 4 and 2 x 2 transforms of the H.264/AVC standard. Moreover, its highly flexible design and hardware efficiency allows it to be easily scaled in terms of performance and hardware cost to meet the specific requirements of any given video coding application. Experimental results obtained using a Xilinx Virtex-5 FPGA demonstrated the superior performance and hardware efficiency levels provided by the proposed structure, which presents a throughput per unit of area relatively higher than other similar recently published designs targeting the H.264/AVC standard. Such results also showed that, when integrated in a multi-core embedded system, this architecture provides speedup factors of about 120x concerning pure software implementations of the transform algorithms, therefore allowing the computation, in real-time, of all the above mentioned transforms for Ultra High Definition Video (UHDV) sequences (4,320 x 7,680 @ 30 fps).

Suites para violoncelo solo

O presente trabalho faz uma análise às Suites BWV 1012 de Johann Sebastian Bach e nº2 op. 80 de Benjamin Britten, para violoncelo solo. Uma descrição das danças que as compõem, assim como as opções técnicas e algumas características dos compositores aqui analisados fazem igualmente parte deste trabalho. Pretendeu-se também mostrar algumas dúvidas surgidas durante o processo de aprendizagem e quais os processos usados para um maior esclarecimento, conduzindo a uma interpretação mais fidedigna, porque mais informada. No final, um PowerPoint centrado nos pontos comuns às duas Suites, e que fez parte da apresentação pública da presente candidatura, complementa-o.