INTER MODE DECISION METHOD FOR VIDEO ENCODING

摘要

An inter mode determining method for encoding video is provided to perform an inter prediction process only with regard to search modes by using inter mode information per a macro block of a previous frame, thereby determining an inter mode. A first least cost mode is selected according to an inter mode of a correlation macro block which is in the same location as a current macro block in a previous frame(S110). It is determined whether a second least cost mode with the first least cost mode is selected based on a ratio-distortion cost of the correlation macro block and a ratio-distortion cost of the first least cost mode. When the second least cost mode with the first least cost mode is not selected, the first least cost mode is determined as the inter mode(S130). When the second least cost mode with the first least cost mode is selected, the second least cost mode is determined as the inter mode(S160).