ENHANCEMENT LAYER PREDICTING METHOD USING HYBRID PREDICTING TECHNIQUES

摘要

PURPOSE: A prediction signal producing method of an enhancement layer using a hybrid prediction technique is provided to acquire a correct enhancement layer prediction signal by combining base layer information and enhancement layer information. CONSTITUTION: An encoder detects an edge from a frame(S810). In case an edge does not exist in a target block of the frame, the encoder produces the prediction signal of a corresponding target block through a spatial correlation(S820,S830). In case the edge exists in the target block, the encoder divides an area based on the edge(S840). The encoder produces a prediction signal through an interlayer correlation for the first area of the divided areas. The encoder produces a prediction signal through the spatial correlation for the second area(S850). [Reference numerals] (AA) Start; (BB) End; (S810) Detecting an edge; (S820) Does the edge exist on a target block?; (S830) Producing a prediction signal through a spatial correlation; (S840) Dividing an area based on the edge; (S850) Producing a prediction signal through an interlayer correlation about a first area, and producing a prediction signal through the spatial correlation about a second area