R
Renato J. Cintra
Researcher at Federal University of Pernambuco
Publications - 157
Citations - 2739
Renato J. Cintra is an academic researcher from Federal University of Pernambuco. The author has contributed to research in topics: Discrete cosine transform & Image compression. The author has an hindex of 25, co-authored 150 publications receiving 2284 citations. Previous affiliations of Renato J. Cintra include University of Akron & University of Lyon.
Papers
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Entropy-based Statistical Analysis of PolSAR Data
TL;DR: In this article, the authors derived analytic expressions for the Shannon, R\'enyi, and restricted Tsallis entropies under the scaled complex Wishart distribution for polarimetric synthetic aperture radar (PolSAR) images.
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Block-parallel systolic-array architecture for 2-d ntt-based fragile watermark embedding
TL;DR: A block-parallel systolic-array architecture is proposed for watermarking based on the 2-D special Hartley NTT (HNTT) hardware cores, each using digital arithmetic over GF(3), and processes 4 × 4 blocks of pixels in parallel every clock cycle.
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An Extension of the Dirichlet Density for Sets of Gaussian Integers
TL;DR: In this paper, an extension of the Dirichlet density for sets of Gaussian integers is proposed and some properties of its properties are investigated, such as asymptotic density, Schnirelmann density, and Dirichlett density.
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2-D Rayleigh autoregressive moving average model for SAR image modeling
TL;DR: In this article , a 2D RARMA model tailored for 2D Rayleigh-distributed data is introduced and conditional likelihood inferences are discussed, and the proposed model was submitted to extensive Monte Carlo simulations to evaluate the performance of the conditional maximum likelihood estimators.
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A Generalized Prefix Construction for OFDM Systems Over Quasi-Static Channels
TL;DR: In this paper, a generalized cyclic prefix (CP) was proposed to improve the robustness of OFDM systems in the presence of channel estimation errors and mobility, and the proposed generalized prefix effectively makes the channel experienced by the packet different from the actual channel.