A high-speed 2-D transform architecture with unique kernel for multi-standard video applications

In this paper, a high-speed two-dimensional (2-D) transform architecture with unique kernel for multi-standard video applications is proposed. On the basis of the new distributed arithmetic algorithm (NEDA), we utilize the recursive discrete cosine transform (DCT) algorithm to reduce the computational complexity of the NEDA and propose the unique kernel framework to unify the adder matrix design for different coefficient requirements. Owing to the proposed unique kernel framework, the adder matrices, which only have 13 adders, are independent to the coefficients of the 2-D transform. Therefore, many 2-D transform matrices can be easily realized via proposed unique kernel and the efficient routing network to accomplish multi-standard video coding requirement.