Inverse Transform Architecture for VC1 Adaptive Block Size

A unified inverse transform architecture based on 8×8block for Video Codec One standard is proposed in this paper.With the data reconstruction,four different inverse transforms mode could use the same architecture,which made the hardware design easy.At the same time,an inverse transform hardware architecture is proposed with less hardware resource.The experiment showed that when clocked at 108MHz,the proposed design could perform real-time inverse transform for standard definition and high definition video decoder.