FILTERING UNIT FOR A COMMON PREDICTION BLOCK SYSTEM IN AN SVC DECODER, PARTICULARLY FOR EFFICIENTLY IMPLEMENTING AN OPTIMIZED HARDWARE AND A FILTERING METHOD BY ANALYZING AN OPERATION EXPRESSION

摘要

PURPOSE: A filtering unit for a common prediction block system in an SVC(Scalable Video Coding) decoder is provided to minimize the number of gates by configuring a multiplier through an adder and a shifter.;CONSTITUTION: According to a prediction mode, a filter coefficient selector(100) selects a filter coefficient. A data module unit(200) arranges input data, and a first operation unit(300) performs calculation through aligned data and the filter coefficient according to a predetermined prediction block. A filter type decision unit(400) filters a prediction block after determining a filter tap number. An internal storage unit(500) temporally a filtered result, and a second calculation unit(600) performs the calculation for the final result.;COPYRIGHT KIPO 2010