Low-complexity multi-purpose IP Core for quantized Discrete Cosine and integer transform

In this paper a low-complexity and highly-integrated IP core for image/video transformations is presented. It is possible to perform quantized 8times8 DCT and quantized 8times8/4times4 integer transforms on the presented reconfigurable architecture using only shift and add operations. The XVID experimental and FPGA synthesis results show that the proposed architecture not only achieves multiplierless video transformations efficiently, but also retains good transformation quality. It is worth noticing that the proposed IP Core is very suitable for low-complexity and multi-purpose video CODECs in SoC designs.