| 摘要 |
<p>Reference picture data for full-pel-precision motion detection and picture data of a macroblock to be encoded are transferred from an SDRAM (41) to a local memory (31). The full-pel-precision motion detection is performed by a full-pel-precision motion detecting unit (21), and the transfer region of the reference picture data for quarter-pel-precision motion detection is determined based on the result of the full-pel-precision motion detection. After transferring the reference picture data for half-pel-precision motion detection, the half-pel-precision motion detection by a half-pel-precision motion detecting unit 22 and the reference picture data transfer for quarter-pel-precision motion detection are practiced concurrently. The quarter-pel-precision motion detection is practiced by a quarter-pel-precision motion detecting unit (23). Consequently, the pipeline stages and the pipeline buffers can be diminished in number, thereby accelerating the pipeline processing.</p> |
