2 papers
eess.SP2026
Multiplierless DFT Approximation Based on the Prime Factor Algorithm
L. Portella, F. M. Bayer, R. J. Cintra
Matrix approximation methods have successfully produced efficient, low-complexity approximate transforms for the discrete cosine transforms and the discrete Fourier transforms. For…
eess.IV2026
Extensions on Low-complexity DCT Approximations for Larger Blocklengths Based on Minimal Angle Similarity
A. P. Radünz, L. Portella, R. S. Oliveira +2
The discrete cosine transform (DCT) is a central tool for image and video coding because it can be related to the Karhunen-Loève transform (KLT), which is the optimal transform in…