Zobrazeno 1 - 10
of 18 012
pro vyhledávání: '"Cintra, A"'
Publikováno v:
J Sign Process Syst 95, 495-516 (2023)
The discrete cosine transform (DCT) is a central tool for image and video coding because it can be related to the Karhunen-Lo\`eve transform (KLT), which is the optimal transform in terms of retained transform coefficients and data decorrelation. In
Externí odkaz:
http://arxiv.org/abs/2410.15244
Publikováno v:
Elsevier ISPRS Journal of Photogrammetry and Remote Sensing, Volume 213, July 2024, Pages 1-13
Synthetic aperture radar (SAR) is an efficient and widely used remote sensing tool. However, data extracted from SAR images are contaminated with speckle, which precludes the application of techniques based on the assumption of additive and normally
Externí odkaz:
http://arxiv.org/abs/2410.10482
Publikováno v:
Multimedia Tools and Applications, 83(26):67303--67325, January 2024
The Karhunen-Lo\`eve transform (KLT) stands as a well-established discrete transform, demonstrating optimal characteristics in data decorrelation and dimensionality reduction. Its ability to condense energy compression into a select few main componen
Externí odkaz:
http://arxiv.org/abs/2410.09227
Autor:
Graciano-Neto, Valdemar Vicente, Barbosa, Jacson Rodrigues, de Lima, Eliomar Araújo, Cintra, Luiza, Medrado, Rafael, Venzi, Samuel, Kassab, Mohamad
Fake News are a contemporary phenomenon with potential devastating effects. For inquiry and auditability purposes, it is essential that the news, once classified as false, can be persisted in an immutable means so that interested parties can query it
Externí odkaz:
http://arxiv.org/abs/2408.09264
Autor:
Cintra, R. J.
This brief note aims at condensing some results on the 32-point approximate DFT and discussing its arithmetic complexity.
Comment: Corrected a typo in (4). 8 pages, 2 tables
Comment: Corrected a typo in (4). 8 pages, 2 tables
Externí odkaz:
http://arxiv.org/abs/2407.12708
Autor:
Coelho, D. F. G., Cintra, R. J.
This report elaborates on approximations for the discrete Fourier transform by means of replacing the exact Cooley-Tukey algorithm twiddle-factors by low-complexity integers, such as $0, \pm \frac{1}{2}, \pm 1$.
Comment: Originally written in Oc
Comment: Originally written in Oc
Externí odkaz:
http://arxiv.org/abs/2402.16225
This paper deals with an impulsive degenerate logistic model, where pulses are introduced for modeling interventions or disturbances, and degenerate logistic term may describe refugees or protections zones for the species. Firstly, the principal eige
Externí odkaz:
http://arxiv.org/abs/2402.12156
Autor:
Cintra, Anaclara Pincelli
Este trabalho observacional teve como objetivo investigar os fatores associados com o desenvolvimento da malária ao longo da gestação e as implicações da infecção por Plasmodium no momento do parto e da malária clínica ao longo da gestação
Autor:
Luisa Leite Barros, Gabriela Leite, Walter Morales, Gillian M. Barlow, Matheus Freitas Cardoso de Azevedo, Alexandre de Sousa Carlos, Adérson Omar Mourão Cintra Damião, Mark Pimentel, Alberto Queiroz Farias
Publikováno v:
BMC Gastroenterology, Vol 24, Iss 1, Pp 1-8 (2024)
Abstract Background Despite adequate treatment, a subgroup of patients with inflammatory bowel disease (IBD), including Crohn`s disease and ulcerative colitis, have persistent gastrointestinal symptoms that are not always related to mucosal damage. R
Externí odkaz:
https://doaj.org/article/cc4a523605824fefa93ca337d050bbea
Autor:
Leandro Ejnisman, Eliane Antonioli, Luciana Cintra, Pamela Gabriela de Oliveira Souza, Lauro Augusto Veloso Costa, Mario Lenza
Publikováno v:
Computational and Structural Biotechnology Journal, Vol 24, Iss , Pp 343-349 (2024)
Robot-assisted total knee arthroplasty (rTKA) involves a learning curve for orthopedic surgeons. The aim of the present study was to assess the surgical times of rTKA procedures performed by initial stage and proficiency stage surgeons in comparison
Externí odkaz:
https://doaj.org/article/757eb83ae96d4e34a68bd69afe2d1090