Abstract
With the advent of new video standards such as MPEG-4 part-10 and H.264/H.26L, demands for advanced video coding (AVC), particularly in area of variable block searching motion estimation (VBSME), are increasing. This has led to research into suitable flexible hardware architectures to perform the various types of VBSME. We propose a new 1-D VLSI architecture for full search variable block size motion estimation (FSVBSME). The variable block size, sum of absolute differences (SAD) computation is performed by reusing the results of smaller subblock computations. These are permuted and combined by incorporating a shuffling mechanism within each processing element (PE). Whereas a conventional 1-D architecture can process only one motion vector, this architecture can process up to 41 motion vector (MV) subblocks (within a macroblock) in a comparable number of clock cycles.
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