VLSI Design of High-Speed Time-Recursive 2-D DCT/IDCT Processor for Video Applications
Liu, K.J. Ray
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In this paper we present a full-customer VLSI design of high- speed 2-D DCT/IDCT Processor based on the new class of time- recursive algorithms and architectures which has never been implemented to prove its performance. We show that the VLSI implementation of this class of DCT/IDCT algorithms can easily meet the high-speed requirements of HDTV due to its modularity, regularity, local connectivity, and scalability. Our design of the 8 x 8 DCT/IDCT can operate at 50 MHz with a 400 Mbps throughput based on a very conservative estimate under 1.2 CMOS technology. In comparison to the existing designs, our approach offers many advantages that can be further explored for even higher performance.