163 citations · 1.5k across the 72 of their papers we have counts for
5 papers · 2 filters
Low-complexity Architecture for AR(1) Inference
A. Borges, R. J. Cintra, D. F. G. Coelho +1
In this Letter, we propose a low-complexity estimator for the correlation coefficient based on the signed process. The introduced approximation is suitable f…
Rounded Hartley Transform: A Quasi-involution
R. J. Cintra, H. M. de Oliveira, C. O. Cintra
A new multiplication-free transform derived from DHT is introduced: the RHT. Investigations on the properties of the RHT led us to the concept of weak-inversion. Using new construc…
An Integer Approximation Method for Discrete Sinusoidal Transforms
R. J. Cintra
Approximate methods have been considered as a means to the evaluation of discrete transforms. In this work, we propose and analyze a class of integer transforms for the discrete Fo…
A Multiparametric Class of Low-complexity Transforms for Image and Video Coding
D. R. Canterle, T. L. T. da Silveira, F. M. Bayer +1
Discrete transforms play an important role in many signal processing applications, and low-complexity alternatives for classical transforms became popular in recent years. Particul…
Multidimensional Wavelets for Scalable Image Decomposition: Orbital Wavelets
H. M. de Oliveira, V. V. Vermehren, R. J. Cintra
Wavelets are closely related to the Schrödinger's wave functions and the interpretation of Born. Similarly to the appearance of atomic orbital, it is proposed to combine anti-symme…