An Efficient VLSI Linear Array for DCT/IDCT Using Subband Decomposition Algorithm

Figure 1

Data flow of computing the 2-point subband DCT: ${\mathbf{C}}_{LL,2}$ and subband DST: ${\mathbf{C}}_{LH,2}$ (for the 8-point DCT of the input signal: ${\mathbf{x}}_8$) based on subband decomposition.