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Fidelity range extensions of H.264/AVC adopt variable block size (VBS) transform techniques to employ 8 × 8/4 × 4 Hadamard transforms adaptively during the fractional motion estimation. In this literature, the hardwired VBS Hadamard transform accelerator is developed with the following contributions: 1) developed a hardware reusing scheme between 8 × 8 and 4 × 4 transforms within the architecture...
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