MOTION ESTIMATION DEVICE USING ADAPTIVE PATTERN IN VIDEO IMAGE COMPRESSION SYSTEM AND METHOD THEREOF

摘要

PURPOSE: A motion estimation device using an adaptive pattern in a video image compression system is provided to determine a pattern used for searching based on a previous searching result, and to adaptively determine a horizontal search pattern and a vertical search pattern, thereby improving a calculation amount and calculation speed as improving accuracy in motion estimation. CONSTITUTION: A motion estimation portion(807) transmits a driving signal to a pattern determining portion(806). The pattern determining portion(806) applies the driving signal to a pattern memory portion(805). The pattern memory portion(805) receives a search pattern. The search pattern transmitted to the pattern memory portion(805) is retransmitted to the motion estimation portion(807) for performing a searching process. The motion estimation portion(807) transmits a search pattern to be used in a next step to the pattern determining portion(806) and the pattern memory portion(805) through the driving signal according to a searched result.