Fast computing of discrete cosine and sine transforms of types VI and VII
Ravi K. Chivukula, Yuriy A. Reznik · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2011
We propose fast algorithms for computing Discrete Sine and Discrete Cosine Transforms (DCT and DST) of types VI and VII. Particular attention is paid to derivation of fast algorithms for computing DST-VII of lengths 4 and 8, which are currently under consideration for inclusion in ISO/IEC/ITU-T High Efficiency Video Coding (HEVC) standard.