Complexity Reduction Techniques Applied to The Compression of High Definition Sequences in Digital TV

Resumo— O H.264/AVC é um codificador de modulaç̃ao de código de pulso com estrutura hı́brida em que s̃ ao conectados módulos preditivos e de transformaç̃ao. Neste trabalho propomos uma abordagem mais eficiente para a implementaç ̃ o do módulo de prediç̃ao, notavelmente o est́ agio mais complexo computacionalmente desse codificador. A id́ eia é testar apenas subconjunto de modos de prediç̃ ao dominantes em vez de fazer o teste exaustivo de todos os modos recomendados pelo padr ão H.264/AVC. Resultados mostram que, para seqû̈ encias de vı́deo de alta resoluç̃ao, a perda de qualidadeé desprezı́vel e abre a possibilidade de inserç̃ao de um controlador de complexidade de computacional para codificaç̃ao de seqû̈encias de vı́deo de alta resoluç̃ao.

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