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Great amount of two-dimensional (2D) discrete cosine transforms and Hadamard transforms are executed in HEVC. Upon the end of real-time UHDTV Codec, the full pipeline variable block size 2D transform engine with the efficient hardware utilization is proposed to handle the DCT/IDCT and Hadamard transforms. The efficiency comes from two aspects. First, the hardware for small-size transforms is fully...
Multi-pattern matching algorithm and architecture is critical for packet inspection based network security applications, especially for high speed network or large pattern sets. This paper presents a method to optimize the potential memory usage of DFA based algorithms for multi-pattern expression matching by the combining DFA's paths, named isomorphic path combina-tion (IMPC). To achieve IMPC, a...
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...
Previous research shows that LRU replacement policy is not efficient when applications exhibit a distant re-reference interval. Recently proposed RRIP policy improves performance for such workloads. However, RRIP lacks of access recency information, which may confuse the replacement policy to make accurate prediction. Consequently, RRIP is not robust for recency-friendly workloads. This paper proposes...
Variable block size (VBS) transform technique is adopted in Fidelity Range Extensions (FRExt) of H.264/AVC, in which 8 ?? 8/4 ?? 4 Hadamard transforms are adaptively employed during the fractional motion estimation. The hardwired VBS Hadamard transform unit is developed by authors and the following contributions are described in this literature: (1) Hardware reusing scheme is adopted in the architecture...
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