CONTEXT-BASED ADAPTIVE BINARY ARITHMETIC CODING DECODER FOR HIGH EFFICIENCY VIDEO CODING

摘要

An HEVC CABAC decoder according to the present invention comprises: a pre-operation module for performing a subtraction operation of an offset value and a range value to compute a median value; a subtraction module for performing a subtraction operation of the range value and an rLPS value read from an rLPS ROM to compute an rMPS value; an addition module for performing an addition operation of the median value and the rLPS value to compute a final value; and a state decision module for confirming the most significant bit of the final value to determine a current probability state. [Reference numerals] (100) Pre-operation module; (200) Subtraction module; (300) Addition module; (400) State determination module