METHDO AND APPARATUS OF ADAPTIVE ENCODING AND DECODING TARGET REGION DETERMINATION

摘要

PURPOSE: A method for determining an adaptive encoding/decoding target area and an apparatus thereof are provided to encode a part of an important area of a residual signal. CONSTITUTION: An encoding device generates transformation coefficient levels by transforming and quantizing a residual signal(S100). The encoding device determines a target encoding area with transformation coefficient levels to encode(S110). The encoding device scans the transformation coefficient levels in the target encoding area(S120). The encoding device performs entropy encoding for the scanned transformation coefficient levels(S130).