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eess.SP2026★ 1 cited
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.SP2022★ 6 cited
Low-complexity Three-dimensional Discrete Hartley Transform Approximations for Medical Image Compression
V. A. Coutinho, F. M. Bayer, R. J. Cintra
The discrete Hartley transform (DHT) is a useful tool for medical image coding. The three-dimensional DHT (3D DHT) can be employed to compress medical image data, such as magnetic…