METHOD AND APPARATUS FOR DECODING SUBSCREEN IN PORTABLE TERMINAL

摘要

Provided are a method and an apparatus for decoding a subscreen in a portable terminal. The method includes determining whether a frame for the subscreen is an index (I), bi-directional (B), or predicted (P) frame; measuring an average motion vector of each frame checked as one of the B and P frames; determining a threshold value for determining similarity using a predetermined number of measured average motion vectors; and comparing the average motion vector of the each frame with the threshold value to determine whether the each frame is to be decoded.