Low power domain-specific reconfigurable array for discrete wavelet transforms targeting multimedia applications

Domain-specific heterogeneous reconfigurable arrays provide high performance over generic field programmable gate arrays (FPGAs) while maintaining the flexibility for that particular domain. This paper introduces an embedded domain-specific reconfigurable array that targets discrete wavelet transforms (DWT) and also presents different configurations of the array to prove its suitability for complex algorithms which are part of changing standards like JPEG and MPEG etc. The proposed array is flexible in order to accommodate various 5/3 and 9/7 discrete wavelet transforms which makes it quite suitable for multimedia applications. Experimental results demonstrate that the proposed architecture is over 31% more efficient in terms of power consumption over standard FPGAs.