A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms - {Dubstowel}

Abstract:
Multitransform techniques have been widely used in modern video coding and have better compression efficiency than the single transform technique that is used conventionally. However, every transform needs a corresponding hardware implementation, which results in a high hardware cost for multiple transforms. A novel method that includes a five-step operation sharing synthesis and architecture-unification techniques is proposed to systematically share the hardware and reduce the cost of multitransform coding. In order to demonstrate the effectiveness of the method, a unified architecture is designed using the method for all of the six transforms involved in the H.264 video codec: 2D 4 × 4 forward and inverse integer transforms, 2D 4 × 4 and 2 × 2 Hadamard transforms, and 1D 8 × 8 forward and inverse integer transforms. Firstly, the six H.264 transform architectures are designed at a low cost using the proposed five-step operation sharing synthesis technique. Secondly, the proposed architecture-unification technique further unifies these six transform architectures into a low cost hardware-unified architecture. The unified architecture requires only 28 adders, 16 subtractors, 40 shifters, and a proposed mux-based routing network, and the gate count is only 16308. The unified architecture processes 8 pixels/clock-cycle, up to 275 MHz, which is equal to 707 Full-HD 1080 p frames/second. [ABSTRACT FROM AUTHOR]

How to Cite:
APA:
Chen, P., Chen, H., & Lin, I. (2015). A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms. Mathematical Problems In Engineering, 20151-14. doi:10.1155/2015/258613
AMA:
Chen P, Chen H, Lin I. A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms. Mathematical Problems In Engineering [serial online]. September 10, 2015;2015:1-14. Available from: Academic Search Complete, Ipswich, MA. Accessed November 15, 2015.
Harvard:
Chen, P, Chen, H, & Lin, I 2015, 'A Systematic Hardware Sharing Method for Unified Architecture Design of H.264 Transforms', Mathematical Problems In Engineering, 2015, pp. 1-14, Academic Search Complete, EBSCOhost, viewed 15 November 2015.