DefinePK

Abstract

To address the increasing demand for higher resolution and frame rates, processing speed (i.e. performance) and area cost need to be considered in the development of next generation video coding. Context-based adaptive binary arithmetic coding (CABAC) is the major entropy-coding algorithm employed in H.264/AVC. In this paper, subinterval reordering is proposed for the arithmetic decoder to increase the processing speed and to lower the frequency of memory access. Modification of the motion vector difference (MVD) context selection is proposed to reduce memory requirements and speed up the memory access. These above two methods and architecture optimizations are non-standard compliant and this proposed work is incorporated using buffers and registers for temporary storage and processing of the data. The speed of operation is improved by more than 50% with respect to normal operation.